IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Ammonia with Nitric acid, Phosphoric acid and Water

Components:
   (1) Ammonia; NH3; [7664-41-7]  NIST Chemistry WebBook for detail
   (2) Nitric acid; HNO3; [7697-37-2]  NIST Chemistry WebBook for detail
   (3) Phosphoric acid; H3PO4; [7664-38-2]  NIST Chemistry WebBook for detail
   (4) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Flatt, R.; Brunisholz, G.; Rod, Ph., Helv. Chim. Acta 1955, 38, 769.

Variables:

   Concentration = Composition at 25 ºC.

Prepared By:
   J. Eysseltová

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

Table I. Special points in the NH₃-HNO₃-H₃PO₄-H₂O system at 25 °C.
Solution number	Chemical₁	Solubility₁ [eq %]	Chemical₂	Solubility₂ [eq %]	Chemical₃	Solubility₃ [eq %]	Chemical₄	Mass Fraction w₄^(a)	Solid Phase(s)^(b)
1	HNO3	0.0	H3PO4	66.4	NH3	33.6	H2O	103	A + B
2	HNO3	0.0	H3PO4	60.0	NH3	40.0	H2O	205	B
3	HNO3	0.0	H3PO4	59.6	NH3	40.4	H2O	206	B + C
4	HNO3	0.0	H3PO4	59.4	NH3	40.6	H2O	242	C + D
5	HNO3	0.0	H3PO4	50.0	NH3	50.0	H2O	803	D
6	HNO3	50.0	H3PO4	0.0	NH3	50.0	H2O	107	E
7	HNO3	43.5	H3PO4	8.5	NH3	48.0	H2O	98	A + B + E
8	HNO3	47.3	H3PO4	3.3	NH3	49.4	H2O	102	B + E
9	HNO3	47.1	H3PO4	3.1	NH3	49.8	H2O	101	B + C + E
10	HNO3	47.2	H3PO4	2.8	NH3	50.0	H2O	101	C + E
11	HNO3	47.3	H3PO4	2.5	NH3	50.2	H2O	101	C + E + F
12	HNO3	40.7	H3PO4	9.3	NH3	50.0	H2O	204	C + D
13	HNO3	45.7	H3PO4	2.7	NH3	51.6	H2O	128	C + D + F

Table II. Points of simultaneous crystallization of two solid phases and invariant points in the NH₃-HNO₃-H₃PO₄-H₂O system at 25 °C.
Solution number	Chemical₁	Solubility₁ [eq %]	Chemical₂	Solubility₂ [eq % ]	Chemical₃	Solubility₃ [eq % ]	Chemical₄	Mass Fraction w₄^(a)	Solid Phase(s)^(b)
14	HNO3	0.0	H3PO4	59.6	NH3	40.4	H2O	205	B + C
15	HNO3	0.0	H3PO4	59.5	NH3	40.5	H2O	207	"
16	HNO3	4.4	H3PO4	54.3	NH3	41.3	H2O	223	"
17	HNO3	7.5	H3PO4	50.6	NH3	41.9	H2O	231	"
18	HNO3	9.9	H3PO4	47.5	NH3	42.6	H2O	236	“
19	HNO3	12.6	H3PO4	44.3	NH3	43.1	H2O	240	"
20	HNO3	20.3	H3PO4	35.1	NH3	44.6	H2O	244	"
21	HNO3	26.2	H3PO4	27.9	NH3	45.9	H2O	239	"
22	HNO3	38.7	H3PO4	12.9	NH3	48.4	H2O	192	"
23	HNO3	47.1	H3PO4	3.1	NH3	49.8	H2O	101	B + C + E
24	HNO3	0.0	H3PO4	59.5	NH3	40.5	H2O	212	C + D
25	HNO3	0.0	H3PO4	59.4	NH3	40.6	H2O	212	"
26	HNO3	24.9	H3PO4	29.0	NH3	46.1	H2O	262	"
27	HNO3	32.4	H3PO4	19.7	NH3	47.9	H2O	248	"
28	HNO3	43.7	H3PO4	5.5	NH3	50.8	H2O	169	"
29	HNO3	45.9	H3PO4	2.6	NH3	51.5	H2O	125	C + D + F
30	HNO3	45.5	H3PO4	2.8	NH3	51.7	H2O	132	"
31	HNO3	45.5	H3PO4	2.7	NH3	51.8	H2O	128	"
32	HNO3	45.7	H3PO4	2.6	NH3	51.7	H2O	128	"
33	HNO3	45.5	H3PO4	2.8	NH3	51.7	H2O	130	"
34	HNO3	45.8	H3PO4	2.7	NH3	51.5	H2O	125	"
35	HNO3	47.3	H3PO4	2.5	NH3	50.2	H2O	101	D + E + F
36	HNO3	47.3	H3PO4	2.5	NH3	50.2	H2O	101	"
37	HNO3	46.0	H3PO4	2.7	NH3	51.3	H2O	122	C + F
38	HNO3	45.9	H3PO4	2.7	NH3	51.4	H2O	122	"
39	HNO3	47.3	H3PO4	1.7	NH3	51.0	H2O	103	E + F
40	HNO3	47.4	H3PO4	0.7	NH3	51.9	H2O	98	"
41	HNO3	47.4	H3PO4	0.7	NH3	51.9	H2O	98	"
42	HNO3	46.5	H3PO4	0.5	NH3	53.0	H2O	95	"
43	HNO3	44.0	H3PO4	0.2	NH3	55.8	H2O	85	"
44	HNO3	39.9	H3PO4	0.1	NH3	60.0	H2O	67	"
45	HNO3	37.9	H3PO4	0.1	NH3	62.0	H2O	57	"
46	HNO3	45.7	H3PO4	1.9	NH3	52.4	H2O	127	D + F
47	HNO3	45.3	H3PO4	1.6	NH3	53.1	H2O	125	"
48	HNO3	44.4	H3PO4	1.2	NH3	54.4	H2O	123	"
49	HNO3	44.7	H3PO4	1.1	NH3	54.2	H2O	122	"
50	HNO3	42.1	H3PO4	0.6	NH3	57.3	H2O	114	"
100	HNO3	13.7	H3PO4	37.7	NH3	48.6	H2O	590	"
101	HNO3	17.0	H3PO4	33.1	NH3	49.9	H2O	610	"
102	HNO3	17.3	H3PO4	32.7	NH3	50.0	H2O	615	"
103	HNO3	28.3	H3PO4	22.0	NH3	49.7	H2O	425	"
104	HNO3	39.0	H3PO4	11.4	NH3	49.6	H2O	225	"
105	HNO3	40.1	H3PO4	9.8	NH3	50.1	H2O	216	"

Table III. Solutions saturated by a single solid phase.
Solution number	Chemical₁	Solubility₁ [eq %]	Chemical₂	Solubility₂ [eq % ]	Chemical₃	Solubility₃ [eq % ]	Chemical₄	Mass Fraction w₄^(a)	Solid Phase(s)^(b)
51	HNO3	50.0	H3PO4	0.0	NH3	50.0	H2O	107	E
52	HNO3	46.7	H3PO4	0.0	NH3	53.3	H2O	96	"
53	HNO3	43.0	H3PO4	0.0	NH3	57.0	H2O	83	"
54	HNO3	39.3	H3PO4	0.0	NH3	60.7	H2O	66	"
55	HNO3	48.0	H3PO4	1.5	NH3	50.5	H2O	104	"
56	HNO3	48.4	H3PO4	1.3	NH3	50.3	H2O	106	"
57	HNO3	47.5	H3PO4	2.5	NH3	50.0	H2O	102	"
58	HNO3	46.4	H3PO4	1.8	NH3	51.8	H2O	118	F
59	HNO3	46.6	H3PO4	1.5	NH3	51.9	H2O	114	"
60	HNO3	47.2	H3PO4	0.9	NH3	51.9	H2O	101	"
61	HNO3	46.2	H3PO4	0.6	NH3	53.2	H2O	100	"
62	HNO3	46.4	H3PO4	0.4	NH3	53.2	H2O	98	"
63	HNO3	30.6	H3PO4	22.6	NH3	46.8	H2O	233	C
64	HNO3	37.4	H3PO4	14.0	NH3	48.6	H2O	215	"
65	HNO3	46.0	H3PO4	4.1	NH3	49.9	H2O	123	"
66	HNO3	46.2	H3PO4	3.7	NH3	50.1	H2O	114	"
67	HNO3	46.9	H3PO4	3.0	NH3	50.1	H2O	103	"
68	HNO3	46.0	H3PO4	2.9	NH3	51.1	H2O	127	"
69	HNO3	0.0	H3PO4	59.1	NH3	40.9	H2O	258	D
70	HNO3	0.0	H3PO4	59.1	NH3	40.9	H2O	273	"
71	HNO3	0.0	H3PO4	58.1	NH3	41.9	H2O	330	"
72	HNO3	0.0	H3PO4	57.0	NH3	43.0	H2O	474	"
73	HNO3	0.0	H3PO4	49.5	NH3	50.5	H2O	824	D
74	HNO3	0.0	H3PO4	49.2	NH3	50.9	H2O	832	"
75	HNO3	0.0	H3PO4	48.5	NH3	51.5	H2O	848	"
76	HNO3	0.0	H3PO4	48.1	NH3	51.9	H2O	865	"
77	HNO3	0.0	H3PO4	47.8	NH3	52.2	H2O	871	"
78	HNO3	0.0	H3PO4	46.3	NH3	53.7	H2O	910	"
79	HNO3	0.0	H3PO4	42.0	NH3	58.0	H2O	994	"
80	HNO3	0.0	H3PO4	35.3	NH3	64.7	H2O	1071	"
81	HNO3	0.0	H3PO4	25.4	NH3	74.6	H2O	1094	"
82	HNO3	0.0	H3PO4	11.5	NH3	88.5	H2O	946	"
83	HNO3	0.0	H3PO4	11.4	NH3	88.6	H2O	919	"
84	HNO3	0.0	H3PO4	1.2	NH3	98.8	H2O	465	"
85	HNO3	0.0	H3PO4	0.2	NH3	99.8	H2O	278	"
86	HNO3	10.1	H3PO4	25.7	NH3	64.2	H2O	986	"
87	HNO3	15.5	H3PO4	11.8	NH3	72.7	H2O	904	"
88	HNO3	18.2	H3PO4	4.0	NH3	77.8	H2O	705	"
89	HNO3	6.5	H3PO4	40.4	NH3	53.1	H2O	834	"
90	HNO3	12.8	H3PO4	31.3	NH3	55.9	H2O	842	"
91	HNO3	23.2	H3PO4	15.4	NH3	61.4	H2O	762	"
92	HNO3	29.4	H3PO4	6.1	NH3	64.5	H2O	589	"
93	HNO3	23.3	H3PO4	23.0	NH3	53.7	H2O	641	"
94	HNO3	31.8	H3PO4	12.8	NH3	55.4	H2O	524	"
95	HNO3	40.1	H3PO4	3.1	NH3	56.8	H2O	292	"
96	HNO3	5.6	H3PO4	44.9	NH3	49.5	H2O	738	"
97	HNO3	6.8	H3PO4	43.9	NH3	49.3	H2O	719	"
98	HNO3	11.2	H3PO4	38.9	NH3	49.9	H2O	682	-
99	HNO3	11.7	H3PO4	38.2	NH3	50.1	H2O	688	"
106	HNO3	7.6	H3PO4	40.7	NH3	51.7	H2O	789	"
107	HNO3	8.8	H3PO4	39.0	NH3	52.2	H2O	792	"
108	HNO3	9.0	H3PO4	38.8	NH3	52.2	H2O	792	"
109	HNO3	10.7	H3PO4	36.5	NH3	52.8	H2O	791	"
110	HNO3	25.1	H3PO4	22.8	NH3	52.1	H2O	564	D
111	HNO3	43.5	H3PO4	5.0	NH3	51.5	H2O	195	"
112	HNO3	43.6	H3PO4	3.2	NH3	53.2	H2O	204	"
113	HNO3	45.1	H3PO4	1.6	NH3	53.3	H2O	134	"
114	HNO3	41.7	H3PO4	1.6	NH3	56.7	H2O	195	"
115	HNO3	41.7	H3PO4	1.6	NH3	56.7	H2O	195	"
116	HNO3	41.5	H3PO4	1.7	NH3	56.8	H2O	223	"
117	HNO3	38.6	H3PO4	1.0	NH3	60.4	H2O	227	"
118	HNO3	37.7	H3PO4	0.4	NH3	61.9	H2O	145	"
119	HNO3	36.4	H3PO4	1.6	NH3	62.0	H2O	283	"
120	HNO3	35.6	H3PO4	0.2	NH3	64.4	H2O	141	"

Part 2. The compiler has used the tabular data above to calculate the following values.
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	HNO3	0.0	0.0	H3PO4	72.8	11.9	NH3	6.4	18.1	H2O	20.7
2	HNO3	0.0	0.0	H3PO4	57.3	5.42	NH3	6.6	10.8	H2O	36.0
3	HNO3	0.0	0.0	H3PO4	57.0	5.36	NH3	6.7	10.9	H2O	36.2
4	HNO3	0.0	0.0	H3PO4	53.6	4.55	NH3	6.4	9.32	H2O	40.1
5	HNO3	0.0	0.0	H3PO4	24.2	1.15	NH3	4.2	3.46	H2O	71.5
6	HNO3	53.2	26.0	H3PO4	0.0	0.0	NH3	14.4	26.0	H2O	32.5
7	HNO3	44.5	24.7	H3PO4	13.5	1.61	NH3	13.3	27.2	H2O	28.7
8	HNO3	49.8	25.8	H3PO4	5.4	0.60	NH3	14.1	26.9	H2O	30.7
9	HNO3	50.0	25.9	H3PO4	5.1	0.57	NH3	14.3	27.4	H2O	30.6
10	HNO3	50.3	26.0	H3PO4	4.6	0.51	NH3	14.4	27.5	H2O	30.7
11	HNO3	50.5	26.0	H3PO4	4.2	0.46	NH3	14.5	27.6	H2O	30.8
12	HNO3	32.1	11.1	H3PO4	11.4	0.84	NH3	10.6	13.6	H2O	45.9
13	HNO3	45.5	19.8	H3PO4	4.2	0.39	NH3	13.9	22.4	H2O	36.4
14	HNO3	0.0	0.0	H3PO4	57.1	5.38	NH3	6.7	11.0	H2O	36.1
15	HNO3	0.0	0.0	H3PO4	56.9	5.32	NH3	6.7	10.9	H2O	36.4
16	HNO3	2.7	1.10	H3PO4	51.6	4.51	NH3	6.8	10.3	H2O	38.9
17	HNO3	4.6	1.80	H3PO4	48.1	4.06	NH3	6.9	10.1	H2O	40.4
18	HNO3	6.1	2.33	H3PO4	45.4	3.73	NH3	7.1	10.0	H2O	41.4
19	HNO3	7.8	2.92	H3PO4	42.6	3.42	NH3	7.2	9.98	H2O	42.4
20	HNO3	13.0	4.62	H3PO4	34.8	2.66	NH3	7.7	10.2	H2O	44.5
21	HNO3	17.4	6.09	H3PO4	28.9	2.16	NH3	8.3	10.7	H2O	45.4
22	HNO3	30.5	11.2	H3PO4	15.8	1.24	NH3	10.3	14.0	H2O	43.3
23	HNO3	51.8	25.9	H3PO4	5.3	0.57	NH3	14.8	27.4	H2O	31.7
24	HNO3	0.0	0.0	H3PO4	56.4	5.20	NH3	6.7	10.6	H2O	36.9
25	HNO3	0.0	0.0	H3PO4	56.4	5.19	NH3	6.7	10.6	H2O	36.9
26	HNO3	15.8	5.28	H3PO4	28.7	2.05	NH3	7.9	9.78	H2O	47.6
27	HNO3	22.1	7.26	H3PO4	20.9	1.47	NH3	8.8	10.7	H2O	48.2
28	HNO3	38.2	14.4	H3PO4	7.5	0.60	NH3	12.0	16.7	H2O	42.2
29	HNO3	46.1	20.4	H3PO4	4.1	0.39	NH3	14.0	22.9	H2O	35.9
30	HNO3	44.8	19.2	H3PO4	4.3	0.39	NH3	13.8	21.8	H2O	37.1
31	HNO3	45.4	19.8	H3PO4	4.2	0.39	NH3	14.0	22.5	H2O	36.5
32	HNO3	45.6	19.8	H3PO4	4.0	0.38	NH3	13.9	22.4	H2O	36.5
33	HNO3	45.1	19.4	H3PO4	4.3	0.40	NH3	13.8	22.1	H2O	36.8
34	HNO3	46.0	20.4	H3PO4	4.2	0.40	NH3	14.0	22.9	H2O	35.8
35	HNO3	50.5	26.0	H3PO4	4.2	0.46	NH3	14.5	27.6	H2O	30.8
36	HNO3	50.5	26.0	H3PO4	4.2	0.46	NH3	14.5	27.6	H2O	30.8
37	HNO3	46.5	21.0	H3PO4	4.2	0.41	NH3	14.0	23.4	H2O	35.2
38	HNO3	46.4	20.9	H3PO4	4.2	0.41	NH3	14.1	23.4	H2O	35.3
39	HNO3	50.8	25.5	H3PO4	2.8	0.31	NH3	14.8	27.5	H2O	31.6
40	HNO3	52.4	26.9	H3PO4	1.2	0.13	NH3	15.5	29.4	H2O	30.9
41	HNO3	52.4	26.9	H3PO4	1.2	0.13	NH3	15.5	29.4	H2O	30.9
42	HNO3	52.4	27.2	H3PO4	0.9	0.10	NH3	16.1	31.0	H2O	30.6
43	HNO3	52.6	28.8	H3PO4	0.4	0.04	NH3	18.0	36.5	H2O	29.0
44	HNO3	52.9	33.1	H3PO4	0.2	0.03	NH3	21.5	49.8	H2O	25.4
45	HNO3	53.3	36.9	H3PO4	0.2	0.03	NH3	23.6	60.4	H2O	22.9
46	HNO3	46.1	20.0	H3PO4	3.0	0.28	NH3	14.3	22.9	H2O	36.6
47	HNO3	46.3	20.1	H3PO4	2.5	0.24	NH3	14.7	23.6	H2O	36.5
48	HNO3	46.2	20.1	H3PO4	1.9	0.18	NH3	15.3	24.6	H2O	36.6
49	HNO3	46.6	20.4	H3PO4	1.8	0.17	NH3	15.3	24.7	H2O	36.3
50	HNO3	46.2	20.5	H3PO4	1.0	0.10	NH3	17.0	27.9	H2O	35.8
51	HNO3	53.2	26.0	H3PO4	0.0	0.0	NH3	14.4	26.0	H2O	32.5
52	HNO3	52.8	27.0	H3PO4	0.0	0.0	NH3	16.3	30.8	H2O	31.0
53	HNO3	52.4	28.8	H3PO4	0.0	0.0	NH3	18.8	38.2	H2O	28.9
54	HNO3	52.7	33.1	H3PO4	0.0	0.0	NH3	22.0	51.1	H2O	25.3
55	HNO3	51.2	25.6	H3PO4	2.5	0.27	NH3	14.6	27.0	H2O	31.7
56	HNO3	51.3	25.4	H3PO4	2.1	0.23	NH3	14.4	26.4	H2O	32.1
57	HNO3	50.5	25.9	H3PO4	4.1	0.45	NH3	14.4	27.2	H2O	31.0
58	HNO3	47.9	21.9	H3PO4	2.9	0.28	NH3	14.4	24.4	H2O	34.8
59	HNO3	48.8	22.7	H3PO4	2.4	0.24	NH3	14.7	25.3	H2O	34.1
60	HNO3	51.6	26.0	H3PO4	1.5	0.17	NH3	15.3	28.6	H2O	31.5
61	HNO3	51.3	25.7	H3PO4	1.0	0.11	NH3	16.0	29.6	H2O	31.7
62	HNO3	51.9	26.3	H3PO4	0.7	0.08	NH3	16.1	30.2	H2O	31.3
63	HNO3	21.1	7.30	H3PO4	24.2	1.80	NH3	8.7	11.2	H2O	45.9
64	HNO3	28.0	9.66	H3PO4	16.3	1.21	NH3	9.8	12.6	H2O	45.9
65	HNO3	45.5	20.8	H3PO4	6.3	0.62	NH3	13.4	22.5	H2O	34.8
66	HNO3	47.1	22.5	H3PO4	5.9	0.60	NH3	13.8	24.4	H2O	33.2
67	HNO3	49.6	25.3	H3PO4	4.9	0.54	NH3	14.3	27.0	H2O	31.1
68	HNO3	45.7	20.1	H3PO4	4.5	0.42	NH3	13.7	22.4	H2O	36.1
69	HNO3	0.0	0.0	H3PO4	52.0	4.24	NH3	6.3	8.81	H2O	41.7
70	HNO3	0.0	0.0	H3PO4	50.8	4.01	NH3	6.1	8.32	H2O	43.1
71	HNO3	0.0	0.0	H3PO4	46.1	3.26	NH3	5.8	7.05	H2O	48.1
72	HNO3	0.0	0.0	H3PO4	37.6	2.23	NH3	4.9	5.04	H2O	57.4
73	HNO3	0.0	0.0	H3PO4	23.6	1.11	NH3	4.2	3.40	H2O	72.2
74	HNO3	0.0	0.0	H3PO4	23.3	1.10	NH3	4.2	3.40	H2O	72.5
75	HNO3	0.0	0.0	H3PO4	22.7	1.06	NH3	4.2	3.37	H2O	73.0
76	HNO3	0.0	0.0	H3PO4	22.3	1.03	NH3	4.2	3.33	H2O	73.6
77	HNO3	0.0	0.0	H3PO4	22.0	1.02	NH3	4.2	3.33	H2O	73.8
78	HNO3	0.0	0.0	H3PO4	20.8	0.94	NH3	4.2	3.28	H2O	75.0
79	HNO3	0.0	0.0	H3PO4	17.9	0.78	NH3	4.3	3.24	H2O	77.8
80	HNO3	0.0	0.0	H3PO4	14.5	0.61	NH3	4.6	3.36	H2O	80.9
81	HNO3	0.0	0.0	H3PO4	10.6	0.43	NH3	5.4	3.79	H2O	84.0
82	HNO3	0.0	0.0	H3PO4	5.7	0.23	NH3	7.7	5.20	H2O	86.6
83	HNO3	0.0	0.0	H3PO4	5.8	0.23	NH3	7.9	5.36	H2O	86.3
84	HNO3	0.0	0.0	H3PO4	1.2	0.05	NH3	16.5	11.8	H2O	82.3
85	HNO3	0.0	0.0	H3PO4	0.3	0.01	NH3	25.3	19.9	H2O	74.4
86	HNO3	2.9	0.57	H3PO4	11.4	0.48	NH3	5.0	3.62	H2O	80.7
87	HNO3	5.0	0.95	H3PO4	5.9	0.24	NH3	6.3	4.47	H2O	82.8
88	HNO3	7.4	1.43	H3PO4	2.5	0.11	NH3	8.5	6.13	H2O	81.6
89	HNO3	2.0	0.43	H3PO4	19.5	0.90	NH3	4.5	3.54	H2O	74.0
90	HNO3	4.0	0.84	H3PO4	15.4	0.69	NH3	4.8	3.69	H2O	75.8
91	HNO3	8.2	1.69	H3PO4	8.5	0.37	NH3	5.9	4.48	H2O	77.3
92	HNO3	13.1	2.77	H3PO4	4.2	0.19	NH3	7.8	6.08	H2O	74.9
93	HNO3	9.1	2.02	H3PO4	13.9	0.66	NH3	5.7	4.65	H2O	71.3
94	HNO3	14.7	3.37	H3PO4	9.2	0.45	NH3	6.9	5.87	H2O	69.2
95	HNO3	27.9	7.63	H3PO4	3.4	0.20	NH3	10.7	10.8	H2O	58.0
96	HNO3	1.9	0.42	H3PO4	23.3	1.13	NH3	4.5	3.73	H2O	70.4
97	HNO3	2.3	0.53	H3PO4	23.2	1.13	NH3	4.5	3.81	H2O	69.9
98	HNO3	4.0	0.91	H3PO4	21.6	1.06	NH3	4.8	4.06	H2O	69.6
99	HNO3	4.2	0.94	H3PO4	21.1	1.03	NH3	4.8	4.05	H2O	69.9
100	HNO3	5.4	1.29	H3PO4	23.1	1.18	NH3	5.2	4.58	H2O	66.3
101	HNO3	6.6	1.55	H3PO4	20.1	1.00	NH3	5.3	4.54	H2O	68.0
102	HNO3	6.7	1.56	H3PO4	19.8	0.98	NH3	5.3	4.52	H2O	68.3
103	HNO3	14.3	3.70	H3PO4	17.3	0.96	NH3	6.8	6.50	H2O	61.5
104	HNO3	29.0	9.63	H3PO4	13.2	0.94	NH3	10.0	12.3	H2O	47.8
105	HNO3	30.7	10.31	H3PO4	11.7	0.84	NH3	10.4	12.9	H2O	47.2
106	HNO3	2.4	0.54	H3PO4	20.4	0.96	NH3	4.5	3.64	H2O	72.6
107	HNO3	2.8	0.62	H3PO4	19.6	0.91	NH3	4.6	3.66	H2O	73.0
108	HNO3	2.9	0.63	H3PO4	19.5	0.91	NH3	4.6	3.66	H2O	73.0
109	HNO3	3.5	0.75	H3PO4	18.4	0.85	NH3	4.6	3.71	H2O	73.4
110	HNO3	10.6	2.47	H3PO4	15.0	0.75	NH3	6.0	5.13	H2O	68.3
111	HNO3	36.0	12.4	H3PO4	6.4	0.47	NH3	11.5	14.7	H2O	46.1
112	HNO3	36.0	11.9	H3PO4	4.1	0.29	NH3	11.9	14.5	H2O	48.1
113	HNO3	45.0	18.7	H3PO4	2.5	0.22	NH3	14.4	22.1	H2O	38.2
114	HNO3	36.2	11.9	H3PO4	2.2	0.15	NH3	13.3	16.2	H2O	48.3
115	HNO3	36.2	11.9	H3PO4	2.2	0.15	NH3	13.3	16.2	H2O	48.3
116	HNO3	33.7	10.3	H3PO4	2.1	0.14	NH3	12.5	14.2	H2O	51.7
117	HNO3	31.8	9.45	H3PO4	1.3	0.08	NH3	13.5	14.8	H2O	53.4
118	HNO3	39.1	14.4	H3PO4	0.6	0.05	NH3	17.3	23.7	H2O	42.9
119	HNO3	26.7	7.15	H3PO4	1.8	0.10	NH3	12.3	12.2	H2O	59.2
120	HNO3	38.0	14.0	H3PO4	0.3	0.03	NH3	18.6	25.4	H2O	43.0

Notes:
   Table 3  ^a  The content is expressed as: mol/100 mol solute.
   Table 3  ^b  The solid phases are A=NH₄H₂PO₄; B=(NH₄)₂HPO₄; C=(NH₄)₇H₂(PO₄)₃; D=(NH₄)₃PO₄; E=NH₄NO₃; F=3NH₄NO₃·(NH₄)₃PO₄.

Method/Apparatus/Procedure:
   No information is given.

Source and Purity of Materials:
   No information is given.

Estimated Errors:

   Temperature: No information is given. The compiler estimates the reproducibility to be about 1 %.

References:
   ¹Blumer, O. Helv. Chim. Acta 1955, 38, 753.
   ²Chapuis-Gottreux, S. Helv. Chim. Acta 1951, 34, 689.
   ³Fritz, P. Helv. Chim. Acta 1950, 33, 2051.