IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Ammonium dihydrogenphosphate with Ammonium nitrate, Ammonium chloride, Potassium dihydrogenphosphate, Potassium nitrate, Potassium chloride and Water

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Components:
   (1) Ammonium chloride; NH4Cl; [12125-02-9]  NIST Chemistry WebBook for detail
   (2) Ammonium dihydrogenphosphate; NH4H2PO4; [7722-76-1]  NIST Chemistry WebBook for detail
   (3) Ammonium nitrate; NH4NO3; [6484-52-2]  NIST Chemistry WebBook for detail
   (4) Potassium chloride; KCl; [7747-40-7]  NIST Chemistry WebBook for detail
   (5) Potassium dihydrogenphosphate; KH2PO4; [7778-77-0]  NIST Chemistry WebBook for detail
   (6) Potassium nitrate; KNO3; [7757-79-1]  NIST Chemistry WebBook for detail
   (7) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Bergman, A.G.; Shakhparonov, M.I., Izv. Sektora Fiz. Khim. Analiza, Inst. Obshch. Neorg. Khim. Akad. Nauk SSSR 221, 331 (1953).

Variables:

   Concentration = Composition and temperature.

Prepared By:
   J. Eysseltová

Experimental Data:   (Notes on the Nomenclature)
(Please see footnotes following the table(s).)   

Section 1. Solubility Isotherms

Solution number	t/°C	Chemical1	Composition1(a)	Chemical2	Composition2(a)	Chemical3	Composition3(a)	Chemical4	Composition4(a)	Solid Phase(s)(b)
1	-5	KCl	25.0	NH4H2PO4	75.0	KNO3	0.0	H2O	2750	A
2	-5	KCl	22.7	NH4H2PO4	68.0	KNO3	9.3	H2O	2760	A
3	-5	KCl	23.7	NH4H2PO4	72.8	KNO3	3.5	H2O	2730	A
4	-5	KCl	22.8	NH4H2PO4	68.3	KNO3	8.9	H2O	2780	A
5	-5	KCl	20.6	NH4H2PO4	61.9	KNO3	17.5	H2O	2700	A
6	-5	KCl	13.1	NH4H2PO4	38.9	KNO3	48.0	H2O	2660	A
7	-5	KCl	12.7	NH4H2PO4	38.2	KNO3	49.1	H2O	2670	A
8	-5	KCl	16.9	NH4H2PO4	51.0	KNO3	32.1	H2O	2240	C
9	-5	KCl	17.6	NH4H2PO4	55.6	KNO3	25.8	H2O	2270	C
10	-5	KCl	20.3	NH4H2PO4	61.1	KNO3	18.6	H2O	2310	C
11	-5	KCl	22.7	NH4H2PO4	68.0	KNO3	9.3	H2O	2410	C
12	-5	KCl	25.0	NH4H2PO4	75.0	KNO3	0.0	H2O	2530	C
13	0	KCl	25.0	NH4H2PO4	75.0	KNO3	0.0	H2O	2240	D
14	0	KCl	22.7	NH4H2PO4	68.0	KNO3	9.3	H2O	2110	D
15	0	KCl	22.0	NH4H2PO4	66.3	KNO3	11.7	H2O	2060	D
16	0	KCl	17.9	NH4H2PO4	53.8	KNO3	28.3	H2O	2030	D
17	0	KCl	16.3	NH4H2PO4	49.2	KNO3	34.5	H2O	2000	D
18	0	KCl	14.6	NH4H2PO4	43.7	KNO3	41.7	H2O	1920	D
19	0	KCl	13.1	NH4H2PO4	38.9	KNO3	48.0	H2O	2000	B
20	0	KCl	10.8	NH4H2PO4	32.5	KNO3	56.7	H2O	2270	B
21	0	KCl	9.5	NH4H2PO4	28.6	KNO3	61.9	H2O	2530	B
22	0	KCl	6.6	NH4H2PO4	20.1	KNO3	73.3	H2O	2950	B
23	0	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	4280	B
24	10	KCl	25.0	NH4H2PO4	75.0	KNO3	0.0	H2O	1000	D
25	10	KCl	22.7	NH4H2PO4	68.0	KNO3	9.3	H2O	1680	D
26	10	KCl	27.6	NH4H2PO4	52.8	KNO3	29.6	H2O	1640	D
27	10	KCl	14.0	NH4H2PO4	42.2	KNO3	43.8	H2O	1600	D
28	10	KCl	13.1	NH4H2PO4	38.9	KNO3	48.0	H2O	1550	D
29	10	KCl	22.6	NH4H2PO4	38.4	KNO3	49.0	H2O	1560	D
30	10	KCl	11.3	NH4H2PO4	34.0	KNO3	54.7	H2O	1490	B
31	10	KCl	9.5	NH4H2PO4	28.6	KNO3	61.9	H2O	1650	B
32	10	KCl	8.4	NH4H2PO4	25.2	KNO3	66.4	H2O	1760	B
33	10	KCl	4.8	NH4H2PO4	14.4	KNO3	80.8	H2O	2120	B
34	10	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	2720	B
35	20	KCl	25.0	NH4H2PO4	75.0	KNO3	0.0	H2O	1480	D
36	20	KCl	22.7	NH4H2PO4	68.0	KNO3	9.3	H2O	1380	D
37	20	KCl	19.0	NH4H2PO4	57.2	KNO3	23.8	H2O	1330	D
38	20	KCl	14.6	NH4H2PO4	43.8	KNO3	41.6	H2O	1360	D
39	20	KCl	13.1	NH4H2PO4	38.9	KNO3	48.0	H2O	1350	D
40	20	KCl	11.3	NH4H2PO4	34.0	KNO3	54.7	H2O	1290	D
41	20	KCl	10.2	NH4H2PO4	30.7	KNO3	59.1	H2O	1250	D
42	20	KCl	9.5	NH4H2PO4	28.6	KNO3	61.9	H2O	1200	B
43	20	KCl	9.2	NH4H2PO4	27.6	KNO3	63.2	H2O	1210	B
44	20	KCl	6.4	NH4H2PO4	19.1	KNO3	74.5	H2O	1330	B
45	20	KCl	3.4	NH4H2PO4	10.6	KNO3	86.0	H2O	1540	B
46	20	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	1780	B
47	30	KCl	25.0	NH4H2PO4	75.0	KNO3	0.0	H2O	1240	D
48	30	KCl	11.7	NH4H2PO4	65.2	KNO3	13.1	H2O	1180	D
49	30	KCl	16.0	NH4H2PO4	47.7	KNO3	36.3	H2O	1110	D
50	30	KCl	13.1	NH4H2PO4	38.9	KNO3	48.0	H2O	1120	D
51	30	KCl	12.1	NH4H2PO4	26.5	KNO3	51.4	H2O	1130	D
52	30	KCl	19.5	NH4H2PO4	28.6	KNO3	61.9	H2O	1030	D
53	30	KCl	9.3	NH4H2PO4	27.8	KNO3	62.9	H2O	1040	D
54	30	KCl	8.3	NH4H2PO4	25.0	KNO3	66.7	H2O	1020	D
55	30	KCl	7.3	NH4H2PO4	22.1	KNO3	70.6	H2O	970	B
56	30	KCl	4.9	NH4H2PO4	14.8	KNO3	80.3	H2O	1030	B
57	30	KCl	2.6	NH4H2PO4	7.8	KNO3	89.6	H2O	1150	B
58	30	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	1220	B
59	35	KCl	25.0	NH4H2PO4	75.0	KNO3	0.0	H2O	1140	D
60	35	KCl	19.7	NH4H2PO4	59.1	KNO3	21.2	H2O	1070	D
61	35	KCl	14.8	NH4H2PO4	44.7	KNO3	40.5	H2O	1040	D
62	35	KCl	11.1	NH4H2PO4	33.4	KNO3	55.5	H2O	1040	D
63	35	KCl	8.4	NH4H2PO4	25.5	KNO3	66.1	H2O	960	D
64	35	KCl	7.5	NH4H2PO4	22.7	KNO3	69.8	H2O	930	D
65	35	KCl	6.4	NH4H2PO4	19.4	KNO3	74.2	H2O	850	B
66	35	KCl	4.3	NH4H2PO4	13.0	KNO3	82.7	H2O	910	B
67	35	KCl	2.2	NH4H2PO4	6.7	KNO3	91.1	H2O	1000	B
68	35	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	1040	B

Crystallization temperature and composition of invariant points.

Solution number	t/°C	Chemical1	Composition1(a)	Chemical2	Composition2(a)	Chemical3	Composition3(a)	Chemical4	Composition4(a)	Solid Phase(s)(b)
69	-2.7	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	4940	A + B
70	-5.6	KCl	22.7	NH4H2PO4	68.0	KNO3	9.3	H2O	2460	A + C
71	-5.4	KCl	13.1	NH4H2PO4	38.9	KNO3	48.0	H2O	2440	A + B
72	+4.3	KCl	13.1	NH4H2PO4	38.9	KNO3	48.0	H2O	1620	B + D
73	+18.7	KCl	9.5	NH4H2PO4	28.6	KNO3	61.9	H2O	1210	B + D
74	-4.1	KCl	9.5	NH4H2PO4	28.6	KNO3	61.9	H2O	3130	A + B
75	-3.9	KCl	7.8	NH4H2PO4	22.2	KNO3	70.0	H2O	3470	A + B
76	-5.3	KCl	12.1	NH4H2PO4	36.4	KNO3	51.5	H2O	2530	A + B
77	-5.6	KCl	20.7	NH4H2PO4	62.5	KNO3	16.8	H2O	2370	A + D
78	-5.8	KCl	17.4	NH4H2PO4	52.1	KNO3	30.5	H2O	2290	A + D
79	+2.0	KCl	13.5	NH4H2PO4	40.4	KNO3	46.1	H2O	1780	B + D
80	-6.0	KCl	19.0	NH4H2PO4	57.2	KNO3	23.8	H2O	2330	A + D
81	-5.3	KCl	25.0	NH4H2PO4	75.0	KNO3	0.0	H2O	2570	A + D
82	-6.2	KCl	14.4	NH4H2PO4	43.2	KNO3	42.4	H2O	2130	A + B + D

The compiler has calculated the following values from the data given above.

Solution number	Chemical1	102 * Mass Fraction w1	m1 [mol/kg]	Chemical2	102 * Mass Fraction w2	m2 [mol/kg]	Chemical3	102 * Mass Fraction w3	m3 [mol/kg]	Chemical4	102 * Mass Fraction w4
1	KCl	3.1	0.51	NH4H2PO4	14.4	1.52	KNO3	0.0	0.0	H2O	82.5
2	KCl	2.8	0.46	NH4H2PO4	13.0	1.37	KNO3	1.6	0.19	H2O	82.6
3	KCl	3.0	0.48	NH4H2PO4	14.0	1.48	KNO3	0.6	0.07	H2O	82.4
4	KCl	2.8	0.46	NH4H2PO4	13.0	1.36	KNO3	1.5	0.18	H2O	82.7
5	KCl	2.6	0.42	NH4H2PO4	12.1	1.27	KNO3	3.0	0.36	H2O	82.3
6	KCl	1.7	0.27	NH4H2PO4	7.7	0.81	KNO3	8.3	1.0	H2O	82.3
7	KCl	1.6	0.26	NH4H2PO4	7.5	0.79	KNO3	8.5	1.0	H2O	82.3
8	KCl	2.5	0.42	NH4H2PO4	11.6	1.26	KNO3	6.4	0.80	H2O	79.5
9	KCl	2.6	0.43	NH4H2PO4	12.5	1.36	KNO3	5.1	0.63	H2O	79.8
10	KCl	2.9	0.49	NH4H2PO4	13.5	1.47	KNO3	3.6	0.45	H2O	80.0
11	KCl	3.1	0.52	NH4H2PO4	14.5	1.57	KNO3	1.7	0.21	H2O	80.6
12	KCl	3.3	0.54	NH4H2PO4	15.2	1.62	KNO3	0.0	0.0	H2O	81.5
13	KCl	3.7	0.62	NH4H2PO4	17.0	1.86	KNO3	0.0	0.0	H2O	79.3
14	KCl	3.5	0.60	NH4H2PO4	16.1	1.79	KNO3	1.9	0.24	H2O	78.4
15	KCl	3.5	0.59	NH4H2PO4	16.0	1.79	KNO3	2.5	0.32	H2O	78.0
16	KCl	2.8	0.49	NH4H2PO4	13.2	1.47	KNO3	6.1	0.77	H2O	77.9
17	KCl	2.6	0.45	NH4H2PO4	12.2	1.37	KNO3	7.5	0.96	H2O	77.6
18	KCl	2.4	0.42	NH4H2PO4	11.2	1.26	KNO3	9.4	1.2	H2O	77.0
19	KCl	2.1	0.36	NH4H2PO4	9.7	1.16	KNO3	10.5	1.33	H2O	77.7
20	KCl	1.6	0.26	NH4H2PO4	7.3	0.80	KNO3	11.2	1.39	H2O	79.9
21	KCl	1.3	0.21	NH4H2PO4	5.9	0.63	KNO3	11.2	1.36	H2O	81.6
22	KCl	0.8	0.1	NH4H2PO4	3.7	0.38	KNO3	11.7	1.38	H2O	83.9
23	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	11.6	1.30	H2O	88.4
24	KCl	4.3	0.77	NH4H2PO4	20.1	2.31	KNO3	0.0	0.0	H2O	75.5
25	KCl	4.2	0.75	NH4H2PO4	19.2	2.25	KNO3	2.3	0.31	H2O	74.3
26	KCl	5.1	0.93	NH4H2PO4	14.9	1.79	KNO3	7.4	1.0	H2O	72.6
27	KCl	2.7	0.49	NH4H2PO4	12.4	1.47	KNO3	11.3	1.52	H2O	73.6
28	KCl	2.6	0.47	NH4H2PO4	11.7	1.39	KNO3	12.7	1.72	H2O	73.0
29	KCl	4.3	0.80	NH4H2PO4	11.3	1.37	KNO3	12.7	1.75	H2O	71.7
30	KCl	2.3	0.42	NH4H2PO4	10.5	1.27	KNO3	14.9	2.04	H2O	72.3
31	KCl	1.8	0.32	NH4H2PO4	8.2	0.96	KNO3	15.7	2.08	H2O	74.3
32	KCl	1.5	0.27	NH4H2PO4	6.9	0.80	KNO3	16.0	2.10	H2O	75.6
33	KCl	0.7	0.1	NH4H2PO4	3.4	0.38	KNO3	16.9	2.12	H2O	78.9
34	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	17.1	2.04	H2O	82.9
35	KCl	5.0	0.94	NH4H2PO4	23.2	2.82	KNO3	0.0	0.0	H2O	71.7
36	KCl	4.8	0.91	NH4H2PO4	22.2	2.74	KNO3	2.7	0.37	H2O	70.3
37	KCl	4.1	0.79	NH4H2PO4	19.2	2.39	KNO3	7.0	0.99	H2O	69.7
38	KCl	3.1	0.60	NH4H2PO4	14.5	1.78	KNO3	12.1	1.70	H2O	70.3
39	KCl	2.8	0.54	NH4H2PO4	12.9	1.60	KNO3	14.0	1.98	H2O	70.2
40	KCl	2.5	0.49	NH4H2PO4	11.7	1.46	KNO3	16.5	2.36	H2O	69.3
41	KCl	2.3	0.45	NH4H2PO4	10.8	1.36	KNO3	18.2	2.63	H2O	68.7
42	KCl	2.2	0.44	NH4H2PO4	10.3	1.32	KNO3	19.6	2.87	H2O	67.8
43	KCl	2.1	0.42	NH4H2PO4	9.9	1.3	KNO3	19.9	2.90	H2O	68.0
44	KCl	1.4	0.27	NH4H2PO4	6.4	0.80	KNO3	22.1	3.11	H2O	70.1
45	KCl	0.7	0.1	NH4H2PO4	3.2	0.38	KNO3	23.0	3.10	H2O	73.2
46	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	24.0	3.12	H2O	76.0
47	KCl	5.7	1.1	NH4H2PO4	26.3	3.36	KNO3	0.0	0.0	H2O	68.0
48	KCl	2.8	0.55	NH4H2PO4	24.2	3.07	KNO3	4.3	0.62	H2O	68.7
49	KCl	3.9	0.80	NH4H2PO4	18.1	2.39	KNO3	12.1	1.82	H2O	65.9
50	KCl	3.2	0.65	NH4H2PO4	14.7	1.93	KNO3	15.9	2.38	H2O	66.2
51	KCl	2.9	0.59	NH4H2PO4	13.7	1.79	KNO3	17.0	2.53	H2O	66.4
52	KCl	4.9	1.1	NH4H2PO4	11.1	1.54	KNO3	21.2	3.34	H2O	62.8
53	KCl	2.4	0.50	NH4H2PO4	11.0	1.49	KNO3	22.0	3.36	H2O	64.6
54	KCl	2.2	0.45	NH4H2PO4	10.1	1.36	KNO3	23.6	3.63	H2O	64.2
55	KCl	2.0	0.42	NH4H2PO4	9.2	1.27	KNO3	25.8	4.04	H2O	63.1
56	KCl	1.3	0.26	NH4H2PO4	5.9	0.80	KNO3	28.3	4.33	H2O	64.5
57	KCl	0.6	0.1	NH4H2PO4	2.9	0.38	KNO3	29.4	4.33	H2O	67.1
58	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	31.5	4.55	H2O	68.5
59	KCl	6.0	1.2	NH4H2PO4	27.8	3.65	KNO3	0.0	0.0	H2O	66.2
60	KCl	5.0	1.0	NH4H2PO4	22.9	3.07	KNO3	7.2	1.1	H2O	64.9
61	KCl	3.8	0.79	NH4H2PO4	17.7	2.39	KNO3	14.1	2.16	H2O	64.4
62	KCl	2.9	0.59	NH4H2PO4	13.2	1.78	KNO3	19.3	2.96	H2O	64.5
63	KCl	2.3	0.49	NH4H2PO4	10.7	1.48	KNO3	24.3	3.83	H2O	62.8
64	KCl	2.1	0.45	NH4H2PO4	9.7	1.4	KNO3	26.2	4.17	H2O	62.1
65	KCl	1.9	0.42	NH4H2PO4	8.7	1.3	KNO3	29.4	4.85	H2O	60.0
66	KCl	1.2	0.26	NH4H2PO4	5.6	0.79	KNO3	31.5	5.05	H2O	61.7
67	KCl	0.6	0.1	NH4H2PO4	2.7	0.37	KNO3	32.7	5.06	H2O	64.0
68	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	35.1	5.34	H2O	64.9
69	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	10.2	1.12	H2O	89.9
70	KCl	3.1	0.51	NH4H2PO4	14.3	1.54	KNO3	1.7	0.21	H2O	80.9
71	KCl	1.8	0.30	NH4H2PO4	8.3	0.89	KNO3	9.0	1.1	H2O	80.9
72	KCl	2.5	0.45	NH4H2PO4	11.3	1.33	KNO3	12.3	1.65	H2O	73.9
73	KCl	2.2	0.44	NH4H2PO4	10.3	1.31	KNO3	19.5	2.84	H2O	68.0
74	KCl	1.1	0.17	NH4H2PO4	4.9	0.51	KNO3	9.4	1.1	H2O	84.6
75	KCl	0.8	0.1	NH4H2PO4	3.5	0.36	KNO3	9.7	1.1	H2O	85.9
76	KCl	1.6	0.27	NH4H2PO4	7.5	0.80	KNO3	9.3	1.1	H2O	81.6
77	KCl	2.9	0.49	NH4H2PO4	13.5	1.47	KNO3	3.2	0.39	H2O	80.4
78	KCl	2.5	0.42	NH4H2PO4	11.6	1.26	KNO3	6.0	0.74	H2O	79.9
79	KCl	2.4	0.42	NH4H2PO4	11.0	1.26	KNO3	11.0	1.44	H2O	75.6
80	KCl	2.7	0.45	NH4H2PO4	12.6	1.36	KNO3	4.6	0.57	H2O	80.1
81	KCl	3.3	0.54	NH4H2PO4	15.2	1.62	KNO3	0.0	0.0	H2O	81.5
82	KCl	2.2	0.38	NH4H2PO4	10.2	1.13	KNO3	8.8	1.1	H2O	88.2

Section 2. Solubility Isotherms

Solution number	t/°C	Chemical1	Composition1(a)	Chemical2	Composition2(a)	Chemical3	Composition3(a)	Chemical4	Composition4(a)	Solid Phase(s)(b)
1	-5	KCl	50.0	NH4H2PO4	50.0	KNO3	0.0	H2O	3010	A
2	-5	KCl	45.1	NH4H2PO4	45.1	KNO3	9.8	H2O	2920	A
3	-5	KCl	42.6	NH4H2PO4	42.6	KNO3	14.8	H2O	2860	A
4	-5	KCl	37.2	NH4H2PO4	37.2	KNO3	25.6	H2O	2400	D
5	-5	KCl	42.6	NH4H2PO4	42.6	KNO3	14.8	H2O	2490	D
6	-5	KCl	50.0	NH4H2PO4	50.0	KNO3	0.0	H2O	2600	D
7	0	KCl	50.0	NH4H2PO4	50.0	KNO3	0.0	H2O	2330	D
8	0	KCl	48.0	NH4H2PO4	48.0	KNO3	4.0	H2O	2300	D
9	0	KCl	42.6	NH4H2PO4	42.6	KNO3	14.8	H2O	2180	D
10	0	KCl	31.9	NH4H2PO4	31.9	KNO3	36.2	H2O	2060	D
11	0	KCl	23.0	NH4H2PO4	23.0	KNO3	54.0	H2O	2450	B
12	0	KCl	18.7	NH4H2PO4	18.7	KNO3	62.6	H2O	2820	B
13	0	KCl	17.5	NH4H2PO4	17.5	KNO3	65.0	H2O	2890	B
14	0	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	4280	B
15	10	KCl	50.0	NH4H2PO4	50.0	KNO3	0.0	H2O	1820	D
16	10	KCl	42.6	NH4H2PO4	42.6	KNO3	14.8	H2O	1825	D
17	10	KCl	37.0	NH4H2PO4	37.0	KNO3	26.0	H2O	1770	D
18	10	KCl	24.2	NH4H2PO4	24.2	KNO3	51.6	H2O	1570	B
19	10	KCl	18.7	NH4H2PO4	18.7	KNO3	62.6	H2O	1820	B
20	10	KCl	23.0	NH4H2PO4	23.0	KNO3	54.0	H2O	1620	B
21	10	KCl	13.0	NH4H2PO4	13.0	KNO3	74.0	H2O	2110	B
22	10	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	2720	B
23	20	KCl	50.0	NH4H2PO4	50.0	KNO3	0.0	H2O	1570	D
24	20	KCl	46.6	NH4H2PO4	46.6	KNO3	6.8	H2O	1560	D
25	20	KCl	42.6	NH4H2PO4	42.6	KNO3	14.8	H2O	1510	D
26	20	KCl	28.4	NH4H2PO4	28.4	KNO3	43.2	H2O	1360	D
27	20	KCl	23.0	NH4H2PO4	23.0	KNO3	54.0	H2O	1240	D
28	20	KCl	19.3	NH4H2PO4	19.3	KNO3	61.4	H2O	1250	B
29	20	KCl	18.7	NH4H2PO4	18.7	KNO3	62.6	H2O	1250	B
30	20	KCl	9.3	NH4H2PO4	9.3	KNO3	81.4	H2O	1530	B
31	20	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	1780	B
32	30	KCl	50.0	NH4H2PO4	50.0	KNO3	0.0	H2O	1330	D
33	30	KCl	42.6	NH4H2PO4	42.6	KNO3	14.8	H2O	1290	D
34	30	KCl	37.3	NH4H2PO4	37.3	KNO3	25.4	H2O	1240	D
35	30	KCl	23.0	NH4H2PO4	23.0	KNO3	54.0	H2O	1060	D
36	30	KCl	22.3	NH4H2PO4	22.3	KNO3	55.4	H2O	1070	D
37	30	KCl	18.7	NH4H2PO4	18.7	KNO3	62.6	H2O	1000	D
38	30	KCl	15.1	NH4H2PO4	15.1	KNO3	69.8	H2O	980	B
39	30	KCl	6.8	NH4H2PO4	6.8	KNO3	86.4	H2O	1120	B
40	30	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	1220	B
41	35	KCl	50.0	NH4H2PO4	50.0	KNO3	0.0	H2O	1230	D
42	35	KCl	42.6	NH4H2PO4	42.6	KNO3	14.8	H2O	1200	D
43	35	KCl	33.6	NH4H2PO4	33.6	KNO3	32.8	H2O	1120	D
44	35	KCl	23.0	NH4H2PO4	23.0	KNO3	54.0	H2O	1010	D
45	35	KCl	18.4	NH4H2PO4	18.4	KNO3	60.2	H2O	950	D
46	35	KCl	18.7	NH4H2PO4	18.7	KNO3	62.6	H2O	940	D
47	35	KCl	13.4	NH4H2PO4	13.4	KNO3	73.2	H2O	860	B
48	35	KCl	5.8	NH4H2PO4	5.8	KNO3	88.4	H2O	920	B
49	35	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	1040	B

Crystallization temperature and composition of invariant points.

Solution number	t/°C	Chemical1	Composition1(a)	Chemical2	Composition2(a)	Chemical3	Composition3(a)	Chemical4	Composition4(a)	Solid Phase(s)(b)
50	-5.6	KCl	50.0	NH4H2PO4	50.0	KNO3	0.0	H2O	2660	A + D
51	-5.6	KCl	42.6	NH4H2PO4	42.6	KNO3	14.8	H2O	2520	A + D
52	-4.4	KCl	23.0	NH4H2PO4	23.0	KNO3	54.0	H2O	3020	A + B
53	+15.6	KCl	23.0	NH4H2PO4	23.0	KNO3	54.0	H2O	1320	B + D
54	-4.0	KCl	18.7	NH4H2PO4	18.7	KNO3	62.6	H2O	3420	A + B
55	+24.2	KCl	18.7	NH4H2PO4	18.7	KNO3	62.6	H2O	1090	B + D
56	-4.0	KCl	20.0	NH4H2PO4	20.0	KNO3	60.0	H2O	3290	A + B
57	-5.6	KCl	37.8	NH4H2PO4	37.8	KNO3	24.4	H2O	2450	A + D
58	+4.4	KCl	27.8	NH4H2PO4	27.8	KNO3	44.4	H2O	1770	B + D
59	-2.7	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	4940	A + B
60	-5.7	KCl	31.0	NH4H2PO4	31.0	KNO3	38.0	H2O	2340	A + B + D

The compiler has calculated the following values from the data given above

Solution number	Chemical1	102 * Mass Fraction w1	m1 [mol/kg]	Chemical2	102 * Mass Fraction w2	m2 [mol/kg]	Chemical3	102 * Mass Fraction w3	m3 [mol/kg]	Chemical4	102 * Mass Fraction w4
1	KCl	5.9	0.92	NH4H2PO4	9.0	0.92	KNO3	0.0	0.0	H2O	85.1
2	KCl	5.4	0.86	NH4H2PO4	8.4	0.86	KNO3	1.6	0.19	H2O	84.6
3	KCl	5.2	0.83	NH4H2PO4	8.0	0.83	KNO3	2.5	0.29	H2O	84.3
4	KCl	5.2	0.86	NH4H2PO4	8.1	0.86	KNO3	4.9	0.59	H2O	81.8
5	KCl	5.8	0.95	NH4H2PO4	9.0	0.95	KNO3	2.8	0.33	H2O	82.4
6	KCl	6.6	1.1	NH4H2PO4	10.2	1.07	KNO3	0.0	0.0	H2O	83.2
7	KCl	7.3	1.2	NH4H2PO4	11.2	1.19	KNO3	0.0	0.0	H2O	81.6
8	KCl	7.0	1.2	NH4H2PO4	10.8	1.16	KNO3	0.8	0.1	H2O	81.3
9	KCl	6.5	1.1	NH4H2PO4	10.0	1.09	KNO3	3.1	0.38	H2O	80.4
10	KCl	5.1	0.86	NH4H2PO4	7.8	0.86	KNO3	7.8	0.98	H2O	79.3
11	KCl	3.2	0.52	NH4H2PO4	4.9	0.52	KNO3	10.1	1.22	H2O	81.8
12	KCl	2.3	0.37	NH4H2PO4	3.5	0.37	KNO3	10.4	1.23	H2O	83.7
13	KCl	2.1	0.34	NH4H2PO4	3.2	0.34	KNO3	10.6	1.25	H2O	84.0
14	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	11.6	1.30	H2O	88.4
15	KCl	8.8	1.5	NH4H2PO4	13.6	1.53	KNO3	0.0	0.0	H2O	77.6
16	KCl	7.5	1.3	NH4H2PO4	11.6	1.30	KNO3	3.5	0.45	H2O	77.4
17	KCl	6.6	1.2	NH4H2PO4	10.3	1.163	KNO3	6.3	0.82	H2O	76.8
18	KCl	4.7	0.86	NH4H2PO4	7.3	0.86	KNO3	13.7	1.83	H2O	74.2
19	KCl	3.3	0.57	NH4H2PO4	5.0	0.57	KNO3	14.8	1.91	H2O	76.8
20	KCl	4.4	0.79	NH4H2PO4	6.8	0.79	KNO3	14.0	1.85	H2O	74.8
21	KCl	2.0	0.34	NH4H2PO4	3.1	0.34	KNO3	15.6	1.95	H2O	79.2
22	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	17.1	2.04	H2O	82.9
23	KCl	9.9	1.8	NH4H2PO4	15.2	1.77	KNO3	0.0	0.0	H2O	74.9
24	KCl	9.2	1.7	NH4H2PO4	14.3	1.66	KNO3	1.8	0.24	H2O	74.7
25	KCl	8.6	1.6	NH4H2PO4	13.3	1.57	KNO3	4.1	0.54	H2O	74.0
26	KCl	6.2	1.2	NH4H2PO4	9.5	1.2	KNO3	12.8	1.76	H2O	71.5
27	KCl	5.3	1.0	NH4H2PO4	8.2	1.0	KNO3	17.0	2.42	H2O	69.4
28	KCl	4.4	0.86	NH4H2PO4	6.9	0.86	KNO3	19.2	2.73	H2O	69.5
29	KCl	4.3	0.83	NH4H2PO4	6.6	0.83	KNO3	19.6	2.78	H2O	69.5
30	KCl	1.8	0.34	NH4H2PO4	2.9	0.34	KNO3	21.9	2.96	H2O	73.4
31	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	24.0	3.12	H2O	76.0
32	KCl	11.2	2.09	NH4H2PO4	17.2	2.09	KNO3	0.0	0.0	H2O	71.6
33	KCl	9.7	1.8	NH4H2PO4	17.9	1.83	KNO3	4.6	0.64	H2O	70.8
34	KCl	8.7	1.7	NH4H2PO4	13.4	1.67	KNO3	8.0	1.14	H2O	69.8
35	KCl	5.9	1.2	NH4H2PO4	9.2	1.2	KNO3	18.9	2.83	H2O	66.0
36	KCl	5.7	1.2	NH4H2PO4	8.8	1.2	KNO3	19.3	2.88	H2O	66.2
37	KCl	5.0	1.0	NH4H2PO4	7.7	1.0	KNO3	22.7	3.48	H2O	64.6
38	KCl	4.1	0.86	NH4H2PO4	6.3	0.86	KNO3	25.6	3.96	H2O	64.0
39	KCl	1.7	0.34	NH4H2PO4	2.6	0.34	KNO3	28.9	4.29	H2O	66.8
40	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	31.5	4.55	H2O	68.5
41	KCl	11.8	2.26	NH4H2PO4	18.2	2.26	KNO3	0.0	0.0	H2O	70.0
42	KCl	10.2	1.97	NH4H2PO4	15.7	1.97	KNO3	4.8	0.69	H2O	69.3
43	KCl	8.4	1.7	NH4H2PO4	12.9	1.67	KNO3	11.1	1.63	H2O	67.5
44	KCl	6.1	1.3	NH4H2PO4	9.4	1.3	KNO3	19.5	2.97	H2O	64.9
45	KCl	5.1	1.1	NH4H2PO4	7.9	1.1	KNO3	22.8	3.52	H2O	64.1
46	KCl	5.2	1.1	NH4H2PO4	8.0	1.1	KNO3	23.6	3.70	H2O	63.1
47	KCl	3.9	0.87	NH4H2PO4	6.1	0.87	KNO3	29.1	4.73	H2O	60.9
48	KCl	1.6	0.35	NH4H2PO4	2.5	0.35	KNO3	33.6	5.34	H2O	62.3
49	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	35.1	5.34	H2O	64.9
50	KCl	6.5	1.0	NH4H2PO4	10.0	1.04	KNO3	0.0	0.0	H2O	83.5
51	KCl	5.8	0.94	NH4H2PO4	8.9	0.94	KNO3	2.7	0.33	H2O	82.6
52	KCl	2.7	0.42	NH4H2PO4	4.1	0.42	KNO3	8.5	0.99	H2O	84.7
53	KCl	5.1	0.97	NH4H2PO4	7.9	0.97	KNO3	16.3	2.27	H2O	70.8
54	KCl	2.0	0.30	NH4H2PO4	3.0	0.30	KNO3	8.9	1.0	H2O	86.2
55	KCl	4.7	0.95	NH4H2PO4	7.3	0.95	KNO3	21.5	3.19	H2O	66.5
56	KCl	2.2	0.34	NH4H2PO4	3.3	0.34	KNO3	8.8	1.01	H2O	85.7
57	KCl	5.2	0.86	NH4H2PO4	8.1	0.86	KNO3	4.6	0.55	H2O	82.1
58	KCl	5.0	0.87	NH4H2PO4	7.7	0.87	KNO3	10.8	1.39	H2O	76.5
59	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	10.2	1.12	H2O	89.8
60	KCl	4.5	0.74	NH4H2PO4	6.9	0.74	KNO3	7.4	0.90	H2O	81.2

Section 3. Solubility Isotherms.

Solution number	t/°C	Chemical1	Composition1(a)	Chemical2	Composition2(a)	Chemical3	Composition3(a)	Chemical4	Composition4(a)	Solid Phase(s)(b)
1	-5	KCl	75.0	NH4H2PO4	25.0	KNO3	0.0	H2O	3140	A
2	-5	KCl	60.3	NH4H2PO4	20.1	KNO3	19.6	H2O	3100	A
3	-5	KCl	47.6	NH4H2PO4	15.9	KNO3	36.5	H2O	2830	A
4	-5	KCl	47.6	NH4H2PO4	15.9	KNO3	36.5	H2O	2420	B
5	-5	KCl	60.3	NH4H2PO4	20.1	KNO3	19.6	H2O	2180	D
6	-5	KCl	75.0	NH4H2PO4	25.0	KNO3	0.0	H2O	2500	D
7	0	KCl	75.0	NH4H2PO4	25.0	KNO3	0.0	H2O	2300	D
8	0	KCl	60.3	NH4H2PO4	20.1	KNO3	19.6	H2O	1970	D
9	0	KCl	47.6	NH4H2PO4	15.9	KNO3	36.5	H2O	2010	B
10	0	KCl	34.9	NH4H2PO4	11.6	KNO3	53.5	H2O	2720	B
11	0	KCl	15.9	NH4H2PO4	5.3	KNO3	78.8	H2O	3560	B
12	0	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	2720	B
13	10	KCl	75.0	NH4H2PO4	25.0	KNO3	0.0	H2O	1920	D
14	10	KCl	60.3	NH4H2PO4	20.1	KNO3	19.6	H2O	1670	D
15	10	KCl	50.5	NH4H2PO4	16.8	KNO3	32.7	H2O	1540	D
16	10	KCl	47.6	NH4H2PO4	15.9	KNO3	36.5	H2O	1450	D
17	10	KCl	34.9	NH4H2PO4	11.6	KNO3	53.5	H2O	1770	B
18	10	KCl	15.9	NH4H2PO4	5.3	KNO3	78.8	H2O	2260	B
19	10	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	2720	B
20	20	KCl	75.0	NH4H2PO4	25.0	KNO3	0.0	H2O	1650	D
21	20	KCl	60.3	NH4H2PO4	20.1	KNO3	19.6	H2O	1420	D
22	20	KCl	52.5	NH4H2PO4	17.5	KNO3	30.0	H2O	1310	D
23	20	KCl	47.6	NH4H2PO4	15.9	KNO3	36.5	H2O	1250	D
24	20	KCl	39.0	NH4H2PO4	13.0	KNO3	48.0	H2O	1180	B
25	20	KCl	34.9	NH4H2PO4	11.6	KNO3	53.5	H2O	1230	B
26	20	KCl	15.9	NH4H2PO4	5.3	KNO3	78.8	H2O	1530	B
27	20	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	1780	B
28	30	KCl	75.0	NH4H2PO4	25.0	KNO3	0.0	H2O	1430	D
29	30	KCl	63.0	NH4H2PO4	20.1	KNO3	19.6	H2O	1240	D
30	30	KCl	47.6	NH4H2PO4	15.9	KNO3	36.5	H2O	1100	D
31	30	KCl	37.7	NH4H2PO4	12.6	KNO3	49.7	H2O	940	D
32	30	KCl	34.9	NH4H2PO4	11.6	KNO3	53.5	H2O	890	D
33	30	KCl	30.8	NH4H2PO4	10.3	KNO3	58.9	H2O	940	B
34	30	KCl	15.9	NH4H2PO4	5.3	KNO3	78.8	H2O	1070	B
35	30	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	1220	B
36	35	KCl	75.0	NH4H2PO4	25.0	KNO3	0.0	H2O	1330	D
37	35	KCl	63.0	NH4H2PO4	20.1	KNO3	19.6	H2O	1160	D
38	35	KCl	47.6	NH4H2PO4	15.9	KNO3	36.5	H2O	1020	D
39	35	KCl	34.9	NH4H2PO4	11.6	KNO3	53.5	H2O	850	D
40	35	KCl	30.1	NH4H2PO4	10.0	KNO3	57.9	H2O	800	D
41	35	KCl	27.5	NH4H2PO4	9.2	KNO3	63.3	H2O	840	B
42	35	KCl	15.9	NH4H2PO4	5.3	KNO3	78.8	H2O	920	B
43	35	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	1040	B

Crystallization temperature and composition of invariant points.

Solution number	t/°C	Chemical1	Composition1(a)	Chemical2	Composition2(a)	Chemical3	Composition3(a)	Chemical4	Composition4(a)	Solid Phase(s)(b)
44	-6	KCl	75.0	NH4H2PO4	25.0	KNO3	0.0	H2O	2580	A + D
45	-5.6	KCl	60.3	NH4H2PO4	20.1	KNO3	19.6	H2O	2250	A + D
46	-5.5	KCl	47.6	NH4H2PO4	15.9	KNO3	36.5	H2O	2550	A + B
47	+5.6	KCl	47.6	NH4H2PO4	15.9	KNO3	36.5	H2O	1560	B + D
48	-4.2	KCl	34.9	NH4H2PO4	11.6	KNO3	53.5	H2O	3260	A + B
49	+29.3	KCl	34.9	NH4H2PO4	11.6	KNO3	53.5	H2O	910	B + D
50	-3.2	KCl	15.9	NH4H2PO4	5.3	KNO3	78.8	H2O	4130	A + B
51	+15.8	KCl	41.4	NH4H2PO4	13.0	KNO3	45.6	H2O	1270	B + D
52	-2.7	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	4940	A + B
53	-6.8	KCl	56.2	NH4H2PO4	18.8	KNO3	25.0	H2O	2150	A + B + D

The compiler has calculated the following values from the data given above

Solution number	Chemical1	102 * Mass Fraction w1	m1 [mol/kg]	Chemical2	102 * Mass Fraction w2	m2 [mol/kg]	Chemical3	102 * Mass Fraction w3	m3 [mol/kg]	Chemical4	102 * Mass Fraction w4
1	KCl	8.6	1.3	NH4H2PO4	4.4	0.44	KNO3	0.0	0.0	H2O	87.0
2	KCl	7.0	1.1	NH4H2PO4	3.6	0.36	KNO3	3.1	0.35	H2O	86.4
3	KCl	5.9	0.93	NH4H2PO4	3.0	0.31	KNO3	6.1	0.72	H2O	84.9
4	KCl	6.7	1.1	NH4H2PO4	3.5	0.37	KNO3	7.0	0.84	H2O	82.8
5	KCl	9.4	1.5	NH4H2PO4	4.8	0.51	KNO3	4.1	0.50	H2O	81.7
6	KCl	10.5	1.67	NH4H2PO4	5.4	0.56	KNO3	0.0	0.0	H2O	84.2
7	KCl	11.2	1.81	NH4H2PO4	5.8	0.60	KNO3	0.0	0.0	H2O	83.0
8	KCl	10.2	1.70	NH4H2PO4	5.2	0.57	KNO3	4.5	0.55	H2O	80.1
9	KCl	7.8	1.32	NH4H2PO4	4.0	0.44	KNO3	8.2	1.0	H2O	80.0
10	KCl	4.5	0.71	NH4H2PO4	2.3	0.24	KNO3	9.3	1.1	H2O	84.0
11	KCl	1.6	0.25	NH4H2PO4	0.8	0.08	KNO3	10.8	1.23	H2O	86.8
12	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	17.1	2.04	H2O	82.9
13	KCl	13.0	2.2	NH4H2PO4	6.7	0.72	KNO3	0.0	0.0	H2O	80.3
14	KCl	11.6	2.0	NH4H2PO4	6.0	0.67	KNO3	5.1	0.65	H2O	77.4
15	KCl	10.3	1.82	NH4H2PO4	5.3	0.61	KNO3	9.0	1.2	H2O	75.5
16	KCl	10.1	1.82	NH4H2PO4	5.2	0.61	KNO3	10.5	1.4	H2O	74.2
17	KCl	6.3	1.1	NH4H2PO4	3.2	0.36	KNO3	13.1	1.7	H2O	77.3
18	KCl	2.4	0.39	NH4H2PO4	1.2	0.13	KNO3	15.8	1.94	H2O	80.6
19	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	17.1	2.04	H2O	82.9
20	KCl	14.7	2.53	NH4H2PO4	7.5	0.84	KNO3	0.0	0.0	H2O	77.8
21	KCl	13.1	2.36	NH4H2PO4	6.7	0.79	KNO3	5.8	0.77	H2O	74.4
22	KCl	12.0	2.23	NH4H2PO4	6.2	0.74	KNO3	9.3	1.3	H2O	72.5
23	KCl	11.2	2.12	NH4H2PO4	5.8	0.71	KNO3	11.7	1.62	H2O	71.3
24	KCl	9.5	1.8	NH4H2PO4	4.9	0.61	KNO3	15.9	2.26	H2O	69.6
25	KCl	8.3	1.6	NH4H2PO4	4.2	0.52	KNO3	17.2	2.42	H2O	70.3
26	KCl	3.2	0.58	NH4H2PO4	1.6	0.19	KNO3	21.4	2.86	H2O	73.8
27	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	24.0	3.12	H2O	76.0
28	KCl	16.3	2.90	NH4H2PO4	8.4	0.97	KNO3	0.0	0.0	H2O	75.2
29	KCl	15.0	2.82	NH4H2PO4	7.4	0.90	KNO3	6.3	0.88	H2O	71.3
30	KCl	12.3	2.40	NH4H2PO4	6.3	0.80	KNO3	12.9	1.84	H2O	68.6
31	KCl	10.7	2.23	NH4H2PO4	5.5	0.74	KNO3	19.2	2.94	H2O	64.6
32	KCl	10.3	2.18	NH4H2PO4	5.3	0.72	KNO3	21.3	3.34	H2O	63.1
33	KCl	8.7	1.8	NH4H2PO4	4.5	0.61	KNO3	22.6	3.48	H2O	64.2
34	KCl	4.1	0.83	NH4H2PO4	2.1	0.28	KNO3	27.5	4.09	H2O	66.3
35	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	31.5	4.55	H2O	68.5
36	KCl	17.3	3.13	NH4H2PO4	8.9	1.0	KNO3	0.0	0.0	H2O	73.9
37	KCl	15.7	3.02	NH4H2PO4	7.7	0.96	KNO3	6.6	0.94	H2O	69.9
38	KCl	12.9	2.59	NH4H2PO4	6.7	0.87	KNO3	13.5	1.99	H2O	66.9
39	KCl	10.6	2.28	NH4H2PO4	5.4	0.76	KNO3	21.9	3.50	H2O	62.1
40	KCl	9.5	2.09	NH4H2PO4	4.9	0.69	KNO3	24.8	4.02	H2O	60.9
41	KCl	8.3	1.82	NH4H2PO4	4.3	0.61	KNO3	26.0	4.19	H2O	61.4
42	KCl	4.5	0.96	NH4H2PO4	2.3	0.32	KNO3	30.3	4.76	H2O	62.9
43	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	35.1	5.34	H2O	64.9
44	KCl	10.2	1.61	NH4H2PO4	5.2	0.54	KNO3	0.0	0.0	H2O	84.6
45	KCl	9.1	1.5	NH4H2PO4	4.7	0.50	KNO3	4.0	0.48	H2O	82.2
46	KCl	6.5	1.0	NH4H2PO4	3.3	0.35	KNO3	6.7	0.80	H2O	83.5
47	KCl	9.6	1.7	NH4H2PO4	4.9	0.57	KNO3	9.9	1.3	H2O	75.6
48	KCl	3.8	0.59	NH4H2PO4	2.0	0.20	KNO3	8.0	0.91	H2O	86.3
49	KCl	10.1	2.13	NH4H2PO4	5.2	0.71	KNO3	21.0	3.27	H2O	63.7
50	KCl	1.4	0.21	NH4H2PO4	0.7	0.07	KNO3	9.5	1.1	H2O	88.4
51	KCl	9.6	1.8	NH4H2PO4	4.7	0.57	KNO3	14.4	2.0	H2O	71.3
52	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	10.2	1.12	H2O	89.8
53	KCl	8.8	1.5	NH4H2PO4	4.5	0.49	KNO3	5.3	0.65	H2O	81.3

Section 4. Solubility Isotherms

Solution number	t/°C	Chemical1	Composition1(a)	Chemical2	Composition2(a)	Chemical3	Composition3(a)	Chemical4	Composition4(a)	Solid Phase(s)(b)
1	-10	KCl	96.0	NH4H2PO4	4.0	KNO3	0.0	H2O	1750	A
2	-10	KCl	90.0	NH4H2PO4	3.7	KNO3	6.3	H2O	1630	A
3	-10	KCl	90.0	NH4H2PO4	3.7	KNO3	6.3	H2O	1510	E
4	-10	KCl	96.0	NH4H2PO4	4.0	KNO3	0.0	H2O	1620	E
5	-5	KCl	96.0	NH4H2PO4	4.0	KNO3	0.0	H2O	3320	A
6	-5	KCl	90.0	NH4H2PO4	3.7	KNO3	6.3	H2O	3260	A
7	-5	KCl	80.7	NH4H2PO4	3.3	KNO3	16.0	H2O	3190	A
8	-5	KCl	65.6	NH4H2PO4	2.7	KNO3	31.7	H2O	2870	A
9	-5	KCl	65.6	NH4H2PO4	2.7	KNO3	31.7	H2O	2450	B
10	-5	KCl	80.7	NH4H2PO4	3.3	KNO3	16.0	H2O	1300	B
11	-5	KCl	90.0	NH4H2PO4	3.7	KNO3	6.3	H2O	1410	E
12	-5	KCl	96.0	NH4H2PO4	4.0	KNO3	0.0	H2O	1520	E
13	0	KCl	96.0	NH4H2PO4	4.0	KNO3	0.0	H2O	1430	E
14	0	KCl	90.0	NH4H2PO4	3.7	KNO3	6.3	H2O	1320	E
15	0	KCl	80.7	NH4H2PO4	3.3	KNO3	16.0	H2O	1180	E
16	0	KCl	65.6	NH4H2PO4	2.7	KNO3	31.7	H2O	1920	B
17	0	KCl	42.5	NH4H2PO4	1.9	KNO3	55.6	H2O	2950	B
18	0	KCl	22.1	NH4H2PO4	1.0	KNO3	76.9	H2O	3730	B
19	0	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	4280	B
20	10	KCl	96.0	NH4H2PO4	4.0	KNO3	0.0	H2O	1260	E
21	10	KCl	90.0	NH4H2PO4	3.7	KNO3	6.3	H2O	1180	E
22	10	KCl	80.7	NH4H2PO4	3.3	KNO3	16.0	H2O	1070	E
23	10	KCl	74.6	NH4H2PO4	3.1	KNO3	22.3	H2O	980	E
24	10	KCl	65.0	NH4H2PO4	2.7	KNO3	31.7	H2O	1240	B
25	10	KCl	42.5	NH4H2PO4	2.8	KNO3	55.7	H2O	1880	B
26	10	KCl	22.1	NH4H2PO4	1.0	KNO3	76.9	H2O	2300	B
27	10	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	2720	B
28	20	KCl	96.0	NH4H2PO4	4.0	KNO3	0.0	H2O	1150	F
29	20	KCl	90.0	NH4H2PO4	3.7	KNO3	6.3	H2O	1080	F
30	20	KCl	80.7	NH4H2PO4	3.3	KNO3	16.0	H2O	980	F
31	20	KCl	67.3	NH4H2PO4	2.8	KNO3	29.9	H2O	890	B
32	20	KCl	65.6	NH4H2PO4	2.7	KNO3	31.7	H2O	920	B
33	20	KCl	42.5	NH4H2PO4	1.8	KNO3	55.7	H2O	1310	B
34	20	KCl	22.1	NH4H2PO4	1.0	KNO3	76.9	H2O	1550	B
35	20	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	1780	B
36	30	KCl	96.0	NH4H2PO4	4.0	KNO3	0.0	H2O	1060	F
37	30	KCl	90.0	NH4H2PO4	3.7	KNO3	6.3	H2O	990	F
38	30	KCl	80.7	NH4H2PO4	3.3	KNO3	16.0	H2O	890	F
39	30	KCl	65.6	NH4H2PO4	2.7	KNO3	31.7	H2O	750	F
40	30	KCl	42.5	NH4H2PO4	1.8	KNO3	55.7	H2O	980	B
41	30	KCl	22.1	NH4H2PO4	1.0	KNO3	76.9	H2O	1100	B
42	30	KCl	58.9	NH4H2PO4	2.4	KNO3	38.7	H2O	880	B
43	30	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	1040	B
44	35	KCl	96.0	NH4H2PO4	4.0	KNO3	0.0	H2O	1020	F
45	35	KCl	90.0	NH4H2PO4	3.7	KNO3	6.3	H2O	940	F
46	35	KCl	80.7	NH4H2PO4	3.3	KNO3	16.0	H2O	860	F
47	35	KCl	65.6	NH4H2PO4	2.7	KNO3	31.7	H2O	720	F
48	35	KCl	42.5	NH4H2PO4	1.9	KNO3	55.7	H2O	790	B
49	35	KCl	22.1	NH4H2PO4	1.0	KNO3	76.9	H2O	940	B
50	35	KCl	54.3	NH4H2PO4	2.3	KNO3	43.4	H2O	720	B
51	35	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	1040	B

Crystallization temperature and composition of invariant points.

Solution number	t/°C	Chemical1	Composition1(a)	Chemical2	Composition2(a)	Chemical3	Composition3(a)	Chemical4	Composition4(a)	Solid Phase(s)(b)
52	-10.8	KCl	96.0	NH4H2PO4	4.0	KNO3	0.0	H2O	1650	A + E
53	+10.0	KCl	96.0	NH4H2PO4	4.0	KNO3	0.0	H2O	1260	E + F
54	-10.9	KCl	90.0	NH4H2PO4	3.7	KNO3	6.7	H2O	1550	A + E
55	+10.0	KCl	90.0	NH4H2PO4	3.7	KNO3	6.7	H2O	1180	E + F
56	-9.9	KCl	80.7	NH4H2PO4	3.3	KNO3	16.0	H2O	1720	A + B
57	-4.6	KCl	80.7	NH4H2PO4	3.3	KNO3	16.0	H2O	1250	B + E
58	-3.8	KCl	42.5	NH4H2PO4	1.8	KNO3	55.7	H2O	3560	A + B
59	-5.7	KCl	65.6	NH4H2PO4	2.7	KNO3	31.7	H2O	2530	A + B
60	+25.4	KCl	65.6	NH4H2PO4	2.7	KNO3	31.7	H2O	780	B + F
61	-3.2	KCl	22.1	NH4H2PO4	1.0	KNO3	76.9	H2O	4320	A + B
62	+10.0	KCl	80.7	NH4H2PO4	3.3	KNO3	16.0	H2O	1070	E + F
63	+9.0	KCl	84.1	NH4H2PO4	3.5	KNO3	12.4	H2O	1110	E + F
64	+10.0	KCl	74.6	NH4H2PO4	3.1	KNO3	22.3	H2O	980	B + F
65	-2.7	KCl	0.0	NH4H2PO4	0.0	KNO3	100.0	H2O	4940	A + B
66	-11.2	KCl	83.7	NH4H2PO4	3.5	KNO3	12.8	H2O	1400	A + B + F
67	+10.0	KCl	76.5	NH4H2PO4	2.0	KNO3	21.5	H2O	1070	B + E + F

The compiler has calculated the following values from the data given above.

Solution number	Chemical1	102 * Mass Fraction w1	m1 [mol/kg]	Chemical2	102 * Mass Fraction w2	m2 [mol/kg]	Chemical3	102 * Mass Fraction w3	m3 [mol/kg]	Chemical4	102 * Mass Fraction w4
1	KCl	18.3	3.05	NH4H2PO4	1.1	0.13	KNO3	0.0	0.0	H2O	80.5
2	KCl	18.1	3.07	NH4H2PO4	1.1	0.13	KNO3	1.7	0.21	H2O	79.1
3	KCl	19.2	3.31	NH4H2PO4	1.2	0.14	KNO3	1.8	0.23	H2O	77.8
4	KCl	19.5	3.29	NH4H2PO4	1.3	0.14	KNO3	0.0	0.0	H2O	79.2
5	KCl	10.6	1.61	NH4H2PO4	0.7	0.07	KNO3	0.0	0.0	H2O	88.7
6	KCl	10.1	1.53	NH4H2PO4	0.6	0.06	KNO3	1.0	0.11	H2O	88.3
7	KCl	9.2	1.4	NH4H2PO4	0.6	0.06	KNO3	2.5	0.28	H2O	87.8
8	KCl	8.1	1.3	NH4H2PO4	0.5	0.05	KNO3	5.3	0.61	H2O	86.0
9	KCl	9.3	1.5	NH4H2PO4	0.6	0.06	KNO3	6.1	0.72	H2O	84.0
10	KCl	19.2	3.45	NH4H2PO4	1.2	0.14	KNO3	5.1	0.68	H2O	74.5
11	KCl	20.2	3.55	NH4H2PO4	1.3	0.15	KNO3	1.9	0.25	H2O	76.6
12	KCl	20.5	3.51	NH4H2PO4	1.3	0.15	KNO3	0.0	0.0	H2O	78.2
13	KCl	21.5	3.73	NH4H2PO4	1.4	0.16	KNO3	0.0	0.0	H2O	77.2
14	KCl	21.3	3.79	NH4H2PO4	1.3	0.16	KNO3	2.0	0.27	H2O	75.3
15	KCl	20.6	3.80	NH4H2PO4	1.3	0.16	KNO3	5.5	0.75	H2O	72.4
16	KCl	11.4	1.90	NH4H2PO4	0.7	0.08	KNO3	7.5	0.92	H2O	80.4
17	KCl	5.1	0.80	NH4H2PO4	0.4	0.04	KNO3	9.1	1.0	H2O	85.5
18	KCl	2.1	0.33	NH4H2PO4	0.2	0.01	KNO3	10.1	1.15	H2O	87.6
19	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	11.6	1.30	H2O	88.4
20	KCl	23.6	4.23	NH4H2PO4	1.5	0.18	KNO3	0.0	0.0	H2O	74.9
21	KCl	23.1	4.24	NH4H2PO4	1.5	0.17	KNO3	2.2	0.30	H2O	73.2
22	KCl	22.1	4.19	NH4H2PO4	1.4	0.17	KNO3	5.9	0.83	H2O	70.6
23	KCl	21.5	4.23	NH4H2PO4	1.4	0.18	KNO3	8.7	1.3	H2O	68.3
24	KCl	15.8	2.91	NH4H2PO4	1.0	0.12	KNO3	10.4	1.42	H2O	72.7
25	KCl	7.4	1.26	NH4H2PO4	0.7	0.08	KNO3	13.1	1.65	H2O	78.8
26	KCl	3.2	0.53	NH4H2PO4	0.2	0.02	KNO3	15.3	1.86	H2O	81.3
27	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	17.1	2.04	H2O	82.9
28	KCl	25.3	4.64	NH4H2PO4	1.6	0.19	KNO3	0.0	0.0	H2O	73.1
29	KCl	24.7	4.63	NH4H2PO4	1.6	0.19	KNO3	2.3	0.32	H2O	71.4
30	KCl	23.5	4.57	NH4H2PO4	1.5	0.19	KNO3	6.3	0.91	H2O	68.8
31	KCl	20.6	4.20	NH4H2PO4	1.3	0.17	KNO3	12.4	1.87	H2O	65.7
32	KCl	19.6	3.96	NH4H2PO4	1.2	0.16	KNO3	12.8	1.91	H2O	66.3
33	KCl	9.7	1.8	NH4H2PO4	0.6	0.08	KNO3	17.3	2.36	H2O	72.4
34	KCl	4.4	0.79	NH4H2PO4	0.3	0.04	KNO3	20.8	2.76	H2O	74.5
35	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	24.0	3.12	H2O	76.0
36	KCl	26.8	5.03	NH4H2PO4	1.7	0.21	KNO3	0.0	0.0	H2O	71.5
37	KCl	26.2	5.05	NH4H2PO4	1.7	0.21	KNO3	2.5	0.35	H2O	69.6
38	KCl	25.0	5.04	NH4H2PO4	1.6	0.21	KNO3	6.7	1.0	H2O	66.7
39	KCl	22.3	4.86	NH4H2PO4	1.4	0.20	KNO3	14.6	2.35	H2O	61.6
40	KCl	11.9	2.41	NH4H2PO4	0.8	0.10	KNO3	21.1	3.16	H2O	66.2
41	KCl	5.6	1.12	NH4H2PO4	0.4	0.05	KNO3	26.5	3.88	H2O	67.5
42	KCl	18.0	3.72	NH4H2PO4	1.1	0.15	KNO3	16.0	2.44	H2O	64.9
43	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	31.5	4.55	H2O	68.5
44	KCl	27.6	5.23	NH4H2PO4	1.8	0.22	KNO3	0.0	0.0	H2O	70.7
45	KCl	27.7	5.32	NH4H2PO4	1.7	0.22	KNO3	2.6	0.37	H2O	68.5
46	KCl	25.6	5.21	NH4H2PO4	1.6	0.21	KNO3	6.9	1.03	H2O	65.9
47	KCl	22.9	5.06	NH4H2PO4	1.5	0.21	KNO3	15.0	2.45	H2O	60.7
48	KCl	13.6	2.99	NH4H2PO4	0.9	0.1	KNO3	24.2	3.92	H2O	61.2
49	KCl	6.2	1.31	NH4H2PO4	0.4	0.06	KNO3	29.4	4.54	H2O	64.0
50	KCl	18.7	4.19	NH4H2PO4	1.2	0.18	KNO3	20.2	3.35	H2O	59.8
51	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	35.1	5.34	H2O	64.8
52	KCl	19.2	3.23	NH4H2PO4	1.2	0.13	KNO3	0.0	0.0	H2O	79.6
53	KCl	23.6	4.23	NH4H2PO4	1.5	0.18	KNO3	0.0	0.0	H2O	74.9
54	KCl	18.8	3.23	NH4H2PO4	1.2	0.13	KNO3	1.9	0.24	H2O	78.1
55	KCl	23.1	4.24	NH4H2PO4	1.5	0.17	KNO3	2.3	0.32	H2O	73.1
56	KCl	15.4	2.61	NH4H2PO4	1.0	0.11	KNO3	4.2	0.52	H2O	79.4
57	KCl	19.7	3.59	NH4H2PO4	1.2	0.15	KNO3	5.3	0.71	H2O	73.7
58	KCl	4.3	0.66	NH4H2PO4	0.3	0.03	KNO3	7.7	0.87	H2O	87.7
59	KCl	9.1	1.4	NH4H2PO4	0.6	0.06	KNO3	5.9	0.70	H2O	84.4
60	KCl	21.8	4.67	NH4H2PO4	1.4	0.19	KNO3	14.3	2.26	H2O	62.5
61	KCl	1.9	0.28	NH4H2PO4	0.1	0.01	KNO3	8.9	0.99	H2O	89.1
62	KCl	22.1	4.19	NH4H2PO4	1.4	0.17	KNO3	5.9	0.83	H2O	70.6
63	KCl	22.5	4.21	NH4H2PO4	1.4	0.18	KNO3	4.5	0.62	H2O	71.6
64	KCl	21.5	4.23	NH4H2PO4	1.4	0.18	KNO3	8.7	1.26	H2O	68.3
65	KCl	0.0	0.0	NH4H2PO4	0.0	0.0	KNO3	10.2	1.12	H2O	89.8
66	KCl	18.8	3.32	NH4H2PO4	1.2	0.14	KNO3	3.9	0.51	H2O	76.0
67	KCl	20.8	3.97	NH4H2PO4	0.8	0.1	KNO3	7.9	1.12	H2O	70.4

Section 5. Solubility Isotherms.

Solution number	t/°C	Chemical1	Composition1(a)	Chemical2	Composition2(a)	Chemical3	Composition3(a)	Chemical4	Composition4(a)	Solid Phase(s)(b)
1	-10	KCl	100.0	NH4H2PO4	0.0	KNO3	0.0	H2O	1750	A
2	-10	KCl	90.9	NH4H2PO4	5.4	KNO3	3.7	H2O	1690	A
3	-10	KCl	90.9	NH4H2PO4	5.4	KNO3	3.7	H2O	1610	E
4	-10	KCl	100.0	NH4H2PO4	0.0	KNO3	0.0	H2O	1660	E
5	-5	KCl	100.0	NH4H2PO4	0.0	KNO3	0.0	H2O	3430	A
6	-5	KCl	90.9	NH4H2PO4	5.4	KNO3	3.7	H2O	3390	A
7	-5	KCl	69.6	NH4H2PO4	18.2	KNO3	12.2	H2O	3180	A
8	-5	KCl	57.8	NH4H2PO4	25.4	KNO3	16.8	H2O	3040	A
9	-5	KCl	23.9	NH4H2PO4	45.7	KNO3	30.4	H2O	2740	A
10	-5	KCl	0.0	NH4H2PO4	60.0	KNO3	40.0	H2O	2680	A
11	-5	KCl	0.0	NH4H2PO4	60.0	KNO3	40.0	H2O	2060	D
12	-5	KCl	23.9	NH4H2PO4	45.7	KNO3	30.4	H2O	2330	D
13	-5	KCl	57.8	NH4H2PO4	25.4	KNO3	16.8	H2O	2330	D
14	-5	KCl	83.2	NH4H2PO4	16.1	KNO3	10.7	H2O	1750	D
15	-5	KCl	90.9	NH4H2PO4	5.4	KNO3	3.7	H2O	1480	D
16	-5	KCl	100.0	NH4H2PO4	0.0	KNO3	0.0	H2O	1580	D
17	0	KCl	100.0	NH4H2PO4	0.0	KNO3	0.0	H2O	1500	E
18	0	KCl	90.9	NH4H2PO4	5.4	KNO3	3.7	H2O	1370	E
19	0	KCl	88.1	NH4H2PO4	7.1	KNO3	4.8	H2O	1370	D
20	0	KCl	85.2	NH4H2PO4	14.9	KNO3	9.9	H2O	1540	D
21	0	KCl	57.8	NH4H2PO4	25.4	KNO3	16.8	H2O	2130	D
22	0	KCl	23.9	NH4H2PO4	45.7	KNO3	30.4	H2O	2100	D
23	0	KCl	0.0	NH4H2PO4	60.0	KNO3	40.0	H2O	1870	D
24	10	KCl	100.0	NH4H2PO4	0.0	KNO3	0.0	H2O	1350	E
25	10	KCl	90.9	NH4H2PO4	5.4	KNO3	3.7	H2O	1210	F
26	10	KCl	88.3	NH4H2PO4	13.0	KNO3	7.7	H2O	1220	F
27	10	KCl	85.4	NH4H2PO4	8.8	KNO3	5.8	H2O	1330	D
28	10	KCl	57.8	NH4H2PO4	25.4	KNO3	16.8	H2O	1790	D
29	10	KCl	23.9	NH4H2PO4	45.7	KNO3	30.4	H2O	1740	D
30	10	KCl	13.5	NH4H2PO4	51.9	KNO3	34.6	H2O	1570	D
31	10	KCl	0.0	NH4H2PO4	60.0	KNO3	40.0	H2O	1560	D
32	20	KCl	100.0	NH4H2PO4	0.0	KNO3	0.0	H2O	1200	E
33	20	KCl	90.9	NH4H2PO4	5.4	KNO3	3.7	H2O	1110	F
34	20	KCl	89.6	NH4H2PO4	12.2	KNO3	8.2	H2O	1090	F
35	20	KCl	82.3	NH4H2PO4	10.6	KNO3	7.1	H2O	1280	D
36	20	KCl	57.8	NH4H2PO4	25.4	KNO3	16.8	H2O	1530	D
37	20	KCl	23.9	NH4H2PO4	45.7	KNO3	30.4	H2O	1440	D
38	20	KCl	22.0	NH4H2PO4	46.8	KNO3	31.2	H2O	1420	D
39	20	KCl	0.0	NH4H2PO4	60.0	KNO3	10.0	H2O	1320	D
40	30	KCl	100.0	NH4H2PO4	0.0	KNO3	0.0	H2O	1110	F
41	30	KCl	90.9	NH4H2PO4	5.4	KNO3	3.7	H2O	1020	F
42	30	KCl	87.0	NH4H2PO4	7.8	KNO3	5.2	H2O	1020	D
43	30	KCl	77.1	NH4H2PO4	13.7	KNO3	9.2	H2O	1200	D
44	30	KCl	57.8	NH4H2PO4	25.4	KNO3	16.8	H2O	1320	D
45	30	KCl	30.0	NH4H2PO4	42.0	KNO3	28.0	H2O	1280	D
46	30	KCl	23.9	NH4H2PO4	45.7	KNO3	30.4	H2O	1210	D
47	30	KCl	0.0	NH4H2PO4	60.0	KNO3	40.0	H2O	1110	D
48	35	KCl	100.0	NH4H2PO4	0.0	KNO3	0.0	H2O	1070	F
49	35	KCl	90.9	NH4H2PO4	5.4	KNO3	3.7	H2O	970	F
50	35	KCl	85.5	NH4H2PO4	8.7	KNO3	5.8	H2O	1010	D
51	35	KCl	74.1	NH4H2PO4	15.5	KNO3	10.4	H2O	1150	D
52	35	KCl	57.8	NH4H2PO4	25.4	KNO3	16.8	H2O	1240	D
53	35	KCl	35.0	NH4H2PO4	39.0	KNO3	26.0	H2O	1180	D
54	35	KCl	23.9	NH4H2PO4	45.7	KNO3	30.4	H2O	1100	D
55	35	KCl	0.0	NH4H2PO4	60.0	KNO3	40.0	H2O	1010	D

Crystallization temperature and composition of invariant points.

Solution number	t/°C	Chemical1	Composition1(a)	Chemical2	Composition2(a)	Chemical3	Composition3(a)	Chemical4	Composition4(a)	Solid Phase(s)(b)
56	-6.4	KCl	0.0	NH4H2PO4	60.0	KNO3	40.0	H2O	2120	A + D
57	-5.4	KCl	23.9	NH4H2PO4	45.7	KNO3	30.4	H2O	2330	A + D
58	-6.3	KCl	57.8	NH4H2PO4	25.4	KNO3	16.8	H2O	2400	A + D
59	-8.6	KCl	81.6	NH4H2PO4	17.0	KNO3	11.4	H2O	1910	D + F
60	+13.0	KCl	89.0	NH4H2PO4	12.6	KNO3	8.4	H2O	1150	D + F
61	-10.6	KCl	90.9	NH4H2PO4	5.4	KNO3	3.7	H2O	1610	A + E
62	+8.2	KCl	90.9	NH4H2PO4	5.4	KNO3	3.7	H2O	1230	E + F
63	-3.1	KCl	88.6	NH4H2PO4	6.8	KNO3	4.6	H2O	1380	D + E
64	+24.0	KCl	88.7	NH4H2PO4	6.8	KNO3	4.5	H2O	1050	D + F
65	-11.2	KCl	88.5	NH4H2PO4	6.9	KNO3	4.6	H2O	1600	A + D + E
66	+7.5	KCl	88.8	NH4H2PO4	6.7	KNO3	4.5	H2O	1240	D + E + F

The compiler has calculated the following values from the data given above.

Solution number	Chemical1	102 * Mass Fraction w1	m1 [mol/kg]	Chemical2	102 * Mass Fraction w2	m2 [mol/kg]	Chemical3	102 * Mass Fraction w3	m3 [mol/kg]	Chemical4	102 * Mass Fraction w4
1	KCl	19.1	3.17	NH4H2PO4	0.0	0.0	KNO3	0.0	0.0	H2O	80.9
2	KCl	17.7	2.99	NH4H2PO4	1.6	0.18	KNO3	1.0	0.12	H2O	79.6
3	KCl	18.4	3.14	NH4H2PO4	1.7	0.19	KNO3	1.0	0.13	H2O	78.9
4	KCl	20.0	3.35	NH4H2PO4	0.0	0.0	KNO3	0.0	0.0	H2O	80.0
5	KCl	10.8	1.62	NH4H2PO4	0.0	0.0	KNO3	0.0	0.0	H2O	89.2
6	KCl	9.9	1.5	NH4H2PO4	0.9	0.09	KNO3	0.5	0.06	H2O	88.7
7	KCl	7.9	1.2	NH4H2PO4	3.2	0.32	KNO3	1.9	0.21	H2O	87.0
8	KCl	6.8	1.1	NH4H2PO4	4.6	0.46	KNO3	2.7	0.31	H2O	85.9
9	KCl	3.0	0.48	NH4H2PO4	8.8	0.93	KNO3	5.2	0.62	H2O	83.0
10	KCl	0.0	0.0	NH4H2PO4	11.7	1.24	KNO3	6.8	0.83	H2O	81.5
11	KCl	0.0	0.0	NH4H2PO4	14.4	0.62	KNO3	8.4	1.1	H2O	77.2
12	KCl	3.4	0.57	NH4H2PO4	10.1	1.09	KNO3	5.9	0.72	H2O	80.6
13	KCl	8.5	1.4	NH4H2PO4	5.7	0.61	KNO3	3.3	0.40	H2O	82.4
14	KCl	15.3	2.64	NH4H2PO4	4.6	0.51	KNO3	2.7	0.34	H2O	77.5
15	KCl	19.7	3.41	NH4H2PO4	1.8	0.20	KNO3	1.1	0.14	H2O	77.4
16	KCl	20.8	3.52	NH4H2PO4	0.0	0.0	KNO3	0.0	0.0	H2O	79.2
17	KCl	21.6	3.70	NH4H2PO4	0.0	0.0	KNO3	0.0	0.0	H2O	78.4
18	KCl	20.9	3.69	NH4H2PO4	1.9	0.22	KNO3	1.2	0.15	H2O	76.0
19	KCl	20.2	3.57	NH4H2PO4	2.5	0.29	KNO3	1.5	0.19	H2O	75.8
20	KCl	17.3	3.07	NH4H2PO4	4.7	0.54	KNO3	2.7	0.36	H2O	75.3
21	KCl	9.1	1.5	NH4H2PO4	6.2	0.66	KNO3	3.6	0.44	H2O	81.1
22	KCl	3.7	0.63	NH4H2PO4	11.0	1.21	KNO3	6.4	0.80	H2O	78.9
23	KCl	0.0	0.0	NH4H2PO4	15.5	1.78	KNO3	9.1	1.2	H2O	75.4
24	KCl	23.5	4.12	NH4H2PO4	0.0	0.0	KNO3	0.0	0.0	H2O	76.5
25	KCl	22.9	4.17	NH4H2PO4	2.1	0.25	KNO3	1.3	0.17	H2O	73.7
26	KCl	21.4	4.02	NH4H2PO4	4.9	0.59	KNO3	2.5	0.35	H2O	71.2
27	KCl	20.0	3.57	NH4H2PO4	3.2	0.37	KNO3	1.8	0.24	H2O	75.0
28	KCl	10.5	1.79	NH4H2PO4	7.1	0.79	KNO3	4.1	0.52	H2O	78.3
29	KCl	4.3	0.76	NH4H2PO4	12.7	1.46	KNO3	7.4	0.97	H2O	75.6
30	KCl	2.6	0.48	NH4H2PO4	15.4	1.84	KNO3	9.0	1.22	H2O	73.0
31	KCl	0.0	0.0	NH4H2PO4	17.7	2.14	KNO3	10.4	1.42	H2O	71.9
32	KCl	25.7	4.63	NH4H2PO4	0.0	0.0	KNO3	0.0	0.0	H2O	74.3
33	KCl	24.4	4.55	NH4H2PO4	2.2	0.27	KNO3	1.3	0.19	H2O	71.9
34	KCl	23.4	4.92	NH4H2PO4	4.9	0.56	KNO3	2.9	0.42	H2O	68.8
35	KCl	19.7	3.57	NH4H2PO4	3.9	0.46	KNO3	2.3	0.31	H2O	74.1
36	KCl	11.8	2.10	NH4H2PO4	8.0	0.92	KNO3	4.7	0.61	H2O	75.5
37	KCl	4.9	0.92	NH4H2PO4	14.6	1.76	KNO3	8.5	1.2	H2O	71.9
38	KCl	4.6	0.86	NH4H2PO4	15.1	1.83	KNO3	8.8	1.2	H2O	71.5
39	KCl	0.0	0.0	NH4H2PO4	19.9	2.53	KNO3	11.7	1.68	H2O	68.4
40	KCl	27.2	5.00	NH4H2PO4	0.0	0.0	KNO3	0.0	0.0	H2O	72.8
41	KCl	25.9	4.95	NH4H2PO4	2.4	0.29	KNO3	1.4	0.20	H2O	70.3
42	KCl	24.7	4.74	NH4H2PO4	3.4	0.42	KNO3	2.0	0.28	H2O	69.9
43	KCl	19.3	3.57	NH4H2PO4	5.3	0.63	KNO3	3.1	0.43	H2O	72.3
44	KCl	13.2	2.43	NH4H2PO4	8.9	1.07	KNO3	5.2	0.71	H2O	72.7
45	KCl	6.8	1.30	NH4H2PO4	14.7	1.82	KNO3	8.6	1.22	H2O	69.9
46	KCl	5.6	1.10	NH4H2PO4	16.5	2.10	KNO3	9.6	1.40	H2O	68.3
47	KCl	0.0	0.0	NH4H2PO4	22.3	3.00	KNO3	13.1	2.00	H2O	64.6
48	KCl	27.9	5.19	NH4H2PO4	0.0	0.0	KNO3	0.0	0.0	H2O	72.1
49	KCl	26.9	5.21	NH4H2PO4	2.5	0.31	KNO3	1.5	0.21	H2O	69.1
50	KCl	24.4	4.70	NH4H2PO4	3.8	0.48	KNO3	2.2	0.32	H2O	69.6
51	KCl	19.0	3.58	NH4H2PO4	6.1	0.75	KNO3	3.6	0.50	H2O	71.2
52	KCl	13.8	2.59	NH4H2PO4	9.3	1.1	KNO3	5.4	0.75	H2O	71.5
53	KCl	8.4	1.6	NH4H2PO4	14.5	1.84	KNO3	8.5	1.2	H2O	68.6
54	KCl	6.0	1.2	NH4H2PO4	17.6	2.31	KNO3	10.3	1.54	H2O	66.1
55	KCl	0.0	0.0	NH4H2PO4	23.7	3.30	KNO3	13.9	2.20	H2O	62.4
56	KCl	0.0	0.0	NH4H2PO4	14.1	1.57	KNO3	8.2	1.05	H2O	77.7
57	KCl	3.4	0.57	NH4H2PO4	10.1	1.09	KNO3	5.9	0.72	H2O	80.6
58	KCl	8.3	1.3	NH4H2PO4	5.6	0.59	KNO3	3.3	0.39	H2O	82.8
59	KCl	14.0	2.37	NH4H2PO4	4.5	0.49	KNO3	2.6	0.33	H2O	78.9
60	KCl	22.4	4.30	NH4H2PO4	4.9	0.61	KNO3	2.9	0.41	H2O	69.8
61	KCl	18.4	3.14	NH4H2PO4	1.7	0.19	KNO3	1.0	0.13	H2O	78.9
62	KCl	22.7	4.11	NH4H2PO4	2.1	0.24	KNO3	1.2	0.17	H2O	74.0
63	KCl	20.2	3.57	NH4H2PO4	2.4	0.27	KNO3	1.4	0.19	H2O	76.0
64	KCl	24.7	4.69	NH4H2PO4	2.9	0.36	KNO3	1.7	0.24	H2O	70.7
65	KCl	18.0	3.07	NH4H2PO4	2.2	0.24	KNO3	1.3	0.16	H2O	78.6
66	KCl	21.9	3.98	NH4H2PO4	2.6	0.30	KNO3	1.5	0.20	H2O	74.0

Section 6. Solubility Isotherms.

Solution number	t/°C	Chemical1	Composition1(a)	Chemical2	Composition2(a)	Chemical3	Composition3(a)	Chemical4	Composition4(a)	Solid Phase(s)(b)
1	-5	KCl	46.4	NH4H2PO4	19.6	KNO3	34.0	H2O	3020	A
2	-5	KCl	38.5	NH4H2PO4	33.2	KNO3	28.3	H2O	2860	A
3	-5	KCl	26.8	NH4H2PO4	53.5	KNO3	19.7	H2O	2960	A
4	-5	KCl	17.6	NH4H2PO4	69.4	KNO3	13.0	H2O	2810	A
5	-5	KCl	14.5	NH4H2PO4	74.9	KNO3	10.6	H2O	2680	A
6	-5	KCl	21.3	NH4H2PO4	63.0	KNO3	15.7	H2O	2280	D
7	-5	KCl	26.8	NH4H2PO4	53.5	KNO3	19.7	H2O	2320	D
8	-5	KCl	48.7	NH4H2PO4	15.7	KNO3	35.6	H2O	2410	B
9	0	KCl	57.6	NH4H2PO4	0.0	KNO3	42.4	H2O	2360	B
10	0	KCl	49.9	NH4H2PO4	13.5	KNO3	36.6	H2O	2040	B
11	0	KCl	38.5	NH4H2PO4	33.2	KNO3	28.3	H2O	2170	D
12	0	KCl	26.9	NH4H2PO4	53.5	KNO3	19.6	H2O	2100	D
13	0	KCl	24.8	NH4H2PO4	56.9	KNO3	18.3	H2O	2060	D
14	0	KCl	14.5	NH4H2PO4	74.9	KNO3	10.6	H2O	2280	D
15	0	KCl	47.0	NH4H2PO4	18.5	KNO3	34.5	H2O	1890	D
16	0	KCl	0.0	NH4H2PO4	100.0	KNO3	0.0	H2O	2810	D
17	10	KCl	57.6	NH4H2PO4	0.0	KNO3	42.4	H2O	1610	B
18	10	KCl	42.2	NH4H2PO4	26.8	KNO3	31.0	H2O	1700	D
19	10	KCl	52.3	NH4H2PO4	9.3	KNO3	38.4	H2O	1420	B
20	10	KCl	38.5	NH4H2PO4	33.2	KNO3	28.3	H2O	1770	D
21	10	KCl	30.2	NH4H2PO4	47.7	KNO3	29.1	H2O	1730	D
22	10	KCl	26.9	NH4H2PO4	53.5	KNO3	19.7	H2O	1730	D
23	10	KCl	14.5	NH4H2PO4	74.9	KNO3	10.6	H2O	1830	D
25	20	KCl	57.6	NH4H2PO4	0.0	KNO3	42.4	H2O	1140	B
26	20	KCl	53.8	NH4H2PO4	6.6	KNO3	39.6	H2O	1012	B
24c	10	KCl	0.0	NH4H2PO4	100.0	KNO3	0.0	H2O	2250	D
27	20	KCl	48.8	NH4H2PO4	15.0	KNO3	35.2	H2O	1210	D
28	20	KCl	38.5	NH4H2PO4	33.2	KNO3	28.3	H2O	1480	D
29	20	KCl	36.7	NH4H2PO4	36.4	KNO3	26.9	H2O	1480	D
30	20	KCl	34.2	NH4H2PO4	40.7	KNO3	25.1	H2O	1470	D
31	20	KCl	26.9	NH4H2PO4	53.5	KNO3	19.6	H2O	1460	D
32	20	KCl	14.5	NH4H2PO4	74.9	KNO3	10.6	H2O	1460	D
34	30	KCl	57.6	NH4H2PO4	0.0	KNO3	42.4	H2O	810	B
35	30	KCl	54.7	NH4H2PO4	5.0	KNO3	40.3	H2O	760	B
33c	20	KCl	0.0	NH4H2PO4	100.0	KNO3	0.0	H2O	1790	D
36	30	KCl	53.1	NH4H2PO4	7.9	KNO3	39.0	H2O	890	D
37	30	KCl	46.4	NH4H2PO4	19.5	KNO3	34.1	H2O	1150	D
38	30	KCl	37.5	NH4H2PO4	35.0	KNO3	27.5	H2O	1270	D
39	30	KCl	31.2	NH4H2PO4	45.9	KNO3	22.9	H2O	1260	D
40	30	KCl	26.8	NH4H2PO4	53.5	KNO3	19.7	H2O	1210	D
41	30	KCl	14.5	NH4H2PO4	74.9	KNO3	10.6	H2O	1190	D
43	35	KCl	57.6	NH4H2PO4	0.0	KNO3	42.3	H2O	710	B
44	35	KCl	55.1	NH4H2PO4	4.3	KNO3	40.6	H2O	660	B
42c	30	KCl	0.0	NH4H2PO4	100.0	KNO3	0.0	H2O	1480	D
45	35	KCl	52.2	NH4H2PO4	9.4	KNO3	38.4	H2O	880	D
46	35	KCl	44.8	NH4H2PO4	22.3	KNO3	32.9	H2O	1110	D
47	35	KCl	38.8	NH4H2PO4	32.7	KNO3	28.5	H2O	1180	D
48	35	KCl	28.4	NH4H2PO4	50.7	KNO3	20.9	H2O	1150	D
49	35	KCl	26.9	NH4H2PO4	53.4	KNO3	19.7	H2O	1090	D
50	35	KCl	14.5	NH4H2PO4	74.9	KNO3	10.6	H2O	1080	D
51c	35	KCl	0.0	NH4H2PO4	100.0	KNO3	0.0	H2O	1310	D

Crystallization temperature and composition of invariant points

Solution number	t/°C	Chemical1	Composition1(a)	Chemical2	Composition2(a)	Chemical3	Composition3(a)	Chemical4	Composition4(a)	Solid Phase(s)(b)
52	-4.3	KCl	57.6	NH4H2PO4	0.0	KNO3	42.4	H2O	2740	A + B
53	-5.7	KCl	38.5	NH4H2PO4	33.2	KNO3	28.3	H2O	2440	A + D
54	-6.0	KCl	26.8	NH4H2PO4	53.5	KNO3	19.7	H2O	2400	A + D
55	-5.3	KCl	14.5	NH4H2PO4	74.9	KNO3	10.6	H2O	2490	A + D
56	+0.1	KCl	47.0	NH4H2PO4	18.4	KNO3	34.6	H2O	1900	B + D
57	+13.0	KCl	50.2	NH4H2PO4	12.8	KNO3	37.0	H2O	1250	B + D
58	+24.6	KCl	54.0	NH4H2PO4	6.3	KNO3	39.7	H2O	900	B + D
59	-6.0	KCl	48.4	NH4H2PO4	16.1	KNO3	35.5	H2O	2480	A + B
60	-5.7	KCl	20.8	NH4H2PO4	63.5	KNO3	15.7	H2O	2300	A + D
61	-7	KCl	44.2	NH4H2PO4	23.3	KNO3	32.5	H2O	2360	A + B + D

The compiler has calculated the following values from the data given above.

Solution number	Chemical1	102 * Mass Fraction w1	m1 [mol/kg]	Chemical2	102 * Mass Fraction w2	m2 [mol/kg]	Chemical3	102 * Mass Fraction w3	m3 [mol/kg]	Chemical4	102 * Mass Fraction w4
1	KCl	5.4	0.85	NH4H2PO4	3.5	0.36	KNO3	5.4	0.63	H2O	85.6
2	KCl	4.7	0.75	NH4H2PO4	6.3	0.64	KNO3	4.7	0.55	H2O	84.3
3	KCl	3.2	0.50	NH4H2PO4	9.7	1.0	KNO3	3.1	0.37	H2O	84.0
4	KCl	2.1	0.35	NH4H2PO4	13.0	1.37	KNO3	2.1	0.26	H2O	82.7
5	KCl	1.8	0.30	NH4H2PO4	14.6	1.55	KNO3	1.8	0.22	H2O	81.8
6	KCl	3.1	0.52	NH4H2PO4	14.1	1.54	KNO3	3.1	0.38	H2O	79.7
7	KCl	3.8	0.64	NH4H2PO4	11.9	1.28	KNO3	3.8	0.47	H2O	80.5
8	KCl	6.9	1.1	NH4H2PO4	3.4	0.36	KNO3	6.9	0.82	H2O	82.8
9	KCl	8.4	1.4	NH4H2PO4	0.0	0.0	KNO3	8.4	1.0	H2O	83.2
10	KCl	8.1	1.4	NH4H2PO4	3.4	0.37	KNO3	8.1	1.0	H2O	80.4
11	KCl	5.9	0.99	NH4H2PO4	7.9	0.85	KNO3	5.9	0.72	H2O	80.3
12	KCl	4.2	0.71	NH4H2PO4	12.8	1.42	KNO3	4.1	0.52	H2O	78.8
13	KCl	3.9	0.67	NH4H2PO4	13.8	1.53	KNO3	3.9	0.49	H2O	78.4
14	KCl	2.1	0.35	NH4H2PO4	16.6	1.83	KNO3	2.1	0.26	H2O	79.2
15	KCl	8.1	1.4	NH4H2PO4	4.9	0.54	KNO3	8.1	1.01	H2O	78.9
16	KCl	0.0	0.0	NH4H2PO4	18.5	1.98	KNO3	0.0	0.0	H2O	81.5
17	KCl	11.4	1.99	NH4H2PO4	0.0	0.0	KNO3	11.4	1.46	H2O	77.2
18	KCl	7.9	1.4	NH4H2PO4	7.7	0.88	KNO3	7.8	1.01	H2O	76.6
19	KCl	11.3	2.05	NH4H2PO4	3.1	0.36	KNO3	11.3	1.50	H2O	74.3
20	KCl	6.9	1.2	NH4H2PO4	9.2	1.0	KNO3	6.9	0.89	H2O	76.9
21	KCl	5.4	0.97	NH4H2PO4	13.1	1.53	KNO3	7.0	0.93	H2O	74.5
22	KCl	4.9	0.86	NH4H2PO4	14.9	1.72	KNO3	4.8	0.63	H2O	75.4
23	KCl	2.5	0.44	NH4H2PO4	19.7	2.27	KNO3	2.5	0.32	H2O	75.3
24	KCl	0.0	0.0	NH4H2PO4	22.1	2.47	KNO3	0.0	0.0	H2O	77.9
25	KCl	14.8	2.81	NH4H2PO4	0.0	0.0	KNO3	14.7	2.07	H2O	70.5
26	KCl	14.9	2.95	NH4H2PO4	2.8	0.36	KNO3	14.8	2.17	H2O	67.5
27	KCl	11.9	2.24	NH4H2PO4	5.6	0.69	KNO3	11.6	1.62	H2O	70.9
28	KCl	7.9	1.4	NH4H2PO4	10.6	1.25	KNO3	7.9	1.1	H2O	73.6
29	KCl	7.5	1.4	NH4H2PO4	11.5	1.37	KNO3	7.5	1.0	H2O	73.4
30	KCl	7.0	1.3	NH4H2PO4	12.9	1.54	KNO3	7.0	0.95	H2O	73.0
31	KCl	5.5	1.0	NH4H2PO4	16.9	2.04	KNO3	5.4	0.75	H2O	72.2
32	KCl	2.9	0.55	NH4H2PO4	23.3	2.85	KNO3	2.9	0.40	H2O	70.9
33	KCl	0.0	0.0	NH4H2PO4	26.3	3.10	KNO3	0.0	0.0	H2O	73.7
34	KCl	18.5	3.95	NH4H2PO4	0.0	0.0	KNO3	18.5	2.91	H2O	62.9
35	KCl	18.2	4.00	NH4H2PO4	2.6	0.37	KNO3	18.2	2.95	H2O	61.0
36	KCl	15.9	3.31	NH4H2PO4	3.7	0.49	KNO3	15.9	2.43	H2O	64.5
37	KCl	11.6	2.24	NH4H2PO4	7.5	0.94	KNO3	11.6	1.65	H2O	69.3
38	KCl	8.6	1.6	NH4H2PO4	12.4	1.53	KNO3	8.6	1.2	H2O	70.4
39	KCl	7.1	1.4	NH4H2PO4	16.2	2.02	KNO3	7.1	1.0	H2O	69.6
40	KCl	6.3	1.2	NH4H2PO4	19.3	2.46	KNO3	6.2	0.90	H2O	68.2
41	KCl	3.4	0.68	NH4H2PO4	26.8	3.50	KNO3	3.3	0.49	H2O	66.5
42	KCl	0.0	0.0	NH4H2PO4	30.2	3.75	KNO3	0.0	0.0	H2O	69.8
43	KCl	20.1	4.51	NH4H2PO4	0.0	0.0	KNO3	20.0	3.31	H2O	59.9
44	KCl	20.0	4.64	NH4H2PO4	2.4	0.36	KNO3	19.9	3.42	H2O	57.7
45	KCl	15.8	3.30	NH4H2PO4	4.4	0.59	KNO3	15.7	2.42	H2O	64.1
46	KCl	11.4	2.24	NH4H2PO4	8.8	1.12	KNO3	11.4	1.65	H2O	68.4
47	KCl	9.4	1.8	NH4H2PO4	12.2	1.54	KNO3	9.4	1.3	H2O	69.0
48	KCl	6.9	1.4	NH4H2PO4	19.0	2.45	KNO3	6.9	1.0	H2O	67.2
49	KCl	6.7	1.4	NH4H2PO4	20.6	2.72	KNO3	6.7	1.0	H2O	65.9
50	KCl	3.6	0.75	NH4H2PO4	28.5	3.85	KNO3	3.5	0.55	H2O	64.4
51	KCl	0.0	0.0	NH4H2PO4	32.8	4.24	KNO3	0.0	0.0	H2O	67.2
52	KCl	7.4	1.2	NH4H2PO4	0.0	0.0	KNO3	7.4	0.86	H2O	85.2
53	KCl	5.4	0.88	NH4H2PO4	7.1	0.76	KNO3	5.4	0.64	H2O	82.1
54	KCl	3.7	0.62	NH4H2PO4	11.5	1.24	KNO3	3.7	0.46	H2O	81.0
55	KCl	1.9	0.32	NH4H2PO4	15.5	1.67	KNO3	1.9	0.24	H2O	80.6
56	KCl	8.1	1.37	NH4H2PO4	4.9	0.54	KNO3	8.1	1.0	H2O	78.9
57	KCl	11.9	2.23	NH4H2PO4	4.7	0.57	KNO3	11.9	1.64	H2O	71.5
58	KCl	16.1	3.33	NH4H2PO4	2.9	0.39	KNO3	16.1	2.45	H2O	64.9
59	KCl	6.7	1.1	NH4H2PO4	3.4	0.36	KNO3	6.7	0.80	H2O	83.1
60	KCl	3.0	0.50	NH4H2PO4	14.1	1.53	KNO3	3.1	0.38	H2O	79.8
61	KCl	6.4	1.0	NH4H2PO4	5.2	0.55	KNO3	6.4	0.77	H2O	82.0

Part 2. Composition of solutions saturated simultaneously with KNO3, (NH4K)Cl and (NH4K)H2PO4.

Solution number	t/°C	Chemical1	Composition1(a)	Chemical2	Composition2(a)	Chemical3	Composition3(a)	Chemical4	Composition4(a)
1	-5.0	KCl	82.5	NH4H2PO4	5.0	KNO3	12.5	H2O	1400
2	0.0	KCl	72.5	NH4H2PO4	7.0	KNO3	20.5	H2O	1150
3	10.0	KCl	71.0	NH4H2PO4	6.0	KNO3	23.0	H2O	920
4	20.0	KCl	67.0	NH4H2PO4	6.5	KNO3	26.5	H2O	770
5	30.0	KCl	62.0	NH4H2PO4	4.0	KNO3	34.0	H2O	700

The compiler has calculated the following values from the data given above.

Solution number	Chemical1	102 * Mass Fraction w1	m1 [mol/kg]	Chemical2	102 * Mass Fraction w2	m2 [mol/kg]	Chemical3	102 * Mass Fraction w3	m3 [mol/kg]	Chemical4	102 * Mass Fraction w4
1	KCl	18.5	3.27	NH4H2PO4	1.7	0.20	KNO3	3.8	0.50	H2O	75.9
2	KCl	18.7	3.50	NH4H2PO4	2.8	0.34	KNO3	7.2	0.99	H2O	71.4
3	KCl	21.3	4.29	NH4H2PO4	2.8	0.36	KNO3	9.4	1.4	H2O	66.6
4	KCl	22.4	4.83	NH4H2PO4	3.4	0.47	KNO3	12.0	1.91	H2O	62.2
5	KCl	21.9	4.92	NH4H2PO4	2.2	0.32	KNO3	16.3	2.70	H2O	59.6

Notes:
   Table 6  ^a  The composition units are: mol/100 mol of solute.
   Table 6  ^b  The solid phases are: A=ice; B=KNO₃; C=(K,NH₄)H₂PO₄; D=(NH₄,K)H₂PO₄; E=α-(NH₄,K)Cl; F=β-(NH₄,K)Cl.
   Table 6  ^c  NH₄H₂PO₄ is the equilibrium solid phase for these solutions (compiler).
   Table 7  ^a  The composition units are: mol/100 mol of solute.

Method/Apparatus/Procedure:
   A visual polythermic method was used.

Source and Purity of Materials:
   No information is given.

Estimated Errors:
   Solubility: No information is given.
   Temperature: No information is given.

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