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.; Denereaz, A., Helv. Chim. Acta 1956, 39, 483.

Variables:

   Concentration = Composition at 50 ºC.

Prepared By:
   J. Eysseltová

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

Tables I. Points of simultaneous crystallization of two or three solid phases in the NH₃ - HNO₃ - H₃PO₄ - H₂O system at 50 °C
Solution number	Chemical₁	Solubility₁ [eq %]	Chemical₂	Solubility₂ [eq %]	Chemical₃	Solubility₃ [eq %]	Chemical₄	Mass Fraction w₄^(a)	Solid Phase(s)
1	NO3-	17.5	PO43-	82.5	NH4+	27.1	H2O	21.6	NH4NO3 + NH4H 2HPO4
2	NO3-	28.0	PO43-	72.0	NH4+	36.0	H2O	45.2	NH4NO3 + NH4H 2HPO4
3	NO3-	38.7	PO43-	61.3	NH4+	44.6	H2O	61.4	NH4NO3 + NH4H 2HPO4
4	NO3-	56.7	PO43-	43.3	NH4+	61.0	H2O	81.3	NH4NO3 + NH4H 2HPO4
5	NO3-	75.5	PO43-	24.5	NH4+	78.2	H2O	105.2	NH4NO3 + NH4H 2HPO4
6	NO3-	96.4	PO43-	3.6	NH4+	97.5	H2O	130.9	NH4NO3 + NH4H 2HPO4
7	NO3-	96.6	PO43-	3.4	NH4+	97.6	H2O	129.2	NH4NO3 + NH4H 2HPO4
8	NO3-	0.0	PO43-	100.0	NH4+	49.6	H2O	111.2	NH4H 2HPO4 + (NH4)2HPO4
9	NO3-	10.0	PO43-	90.0	NH4+	54.2	H2O	123.1	NH4H 2HPO4 + (NH4)2HPO4
10	NO3-	19.9	PO43-	80.1	NH4+	59.4	H2O	134.8	NH4H 2HPO4 + (NH4)2HPO4
11	NO3-	29.7	PO43-	70.3	NH4+	64.5	H2O	144.9	NH4H 2HPO4 + (NH4)2HPO4
12	NO3-	33.2	PO43-	66.8	NH4+	66.2	H2O	148.6	NH4H 2HPO4 + (NH4)2HPO4
13	NO3-	51.8	PO43-	48.2	NH4+	76.0	H2O	161.9	NH4H 2HPO4 + (NH4)2HPO4
14	NO3-	60.9	PO43-	39.1	NH4+	80.9	H2O	164.2	NH4H 2HPO4 + (NH4)2HPO4
15	NO3-	69.5	PO43-	30.5	NH4+	84.9	H2O	158.7	NH4H 2HPO4 + (NH4)2HPO4
16	NO3-	78.6	PO43-	21.4	NH4+	89.4	H2O	142.4	NH4H 2HPO4 + (NH4)2HPO4
17	NO3-	86.8	PO43-	13.2	NH4+	93.5	H2O	114.6	NH4NO3 + NH4H 2HPO4 + (NH4)2HPO4
18	NO3-	94.2	PO43-	5.8	NH4+	97.7	H2O	125.1	NH4NO3 + (NH4)2HPO4
19	NO3-	94.6	PO43-	5.4	NH4+	98.2	H2O	123.0	NH4NO3 + (NH4)2HPO4
20	NO3-	95.3	PO43-	4.7	NH4+	98.5	H2O	121.1	NH4NO3 + (NH4)2HPO4

Table II. Solutions saturated by a single solid phase in the NH₃ - HNO₃ - H₃PO₄ - H₂O system at 50 °C.
Solution number	Chemical₁	Solubility₁ [eq %]	Chemical₂	Solubility₂ [eq %]	Chemical₃	Solubility₃ [eq %]	Chemical₄	Mole Fraction₄^(a)	Solid Phase(s)
21	NO3-	20.4	PO43-	79.6	NH4+	72.1	H2O	334.0	(NH4)2HPO4
22	NO3-	39.3	PO43-	60.7	NH4+	78.9	H2O	356.6	(NH4)2HPO4
23	NO3-	58.7	PO43-	41.3	NH4+	85.7	H2O	348.8	(NH4)2HPO4
24	NO3-	69.3	PO43-	30.7	NH4+	89.1	H2O	316.8	(NH4)2HPO4
25	NO3-	80.6	PO43-	19.4	NH4+	92.7	H2O	263.0	(NH4)2HPO4
26	NO3-	91.5	PO43-	8.5	NH4+	96.6	H2O	155.4	(NH4)2HPO4
27	NO3-	91.8	PO43-	8.2	NH4+	96.8	H2O	159.7	(NH4)2HPO4
28	NO3-	22.0	PO43-	78.0	NH4+	67.5	H2O	263.8	(NH4)2HPO4
29	NO3-	44.4	PO43-	55.6	NH4+	76.1	H2O	261.6	(NH4)2HPO4
30	NO3-	0.0	PO43-	100.0	NH4+	33.4	H2O	311.1	NH4H2PO4
31	NO3-	10.6	PO43-	89.4	NH4+	40.2	H2O	365.8	NH4H2PO4
32	NO3-	19.6	PO43-	80.4	NH4+	46.2	H2O	399.7	NH4H2PO4
33	NO3-	27.0	PO43-	73.0	NH4+	51.0	H2O	421.0	NH4H2PO4
34	NO3-	35.2	PO43-	64.8	NH4+	56.9	H2O	433.7	NH4H2PO4
35	NO3-	41.1	PO43-	58.9	NH4+	61.1	H2O	439.2	NH4H2PO4
36	NO3-	49.5	PO43-	50.5	NH4+	66.4	H2O	441.9	NH4H2PO4
37	NO3-	62.2	PO43-	37.8	NH4+	74.8	H2O	420.4	NH4H2PO4
38	NO3-	76.0	PO43-	24.0	NH4+	84.1	H2O	368.5	NH4H2PO4
39	NO3-	84.6	PO43-	15.4	NH4+	89.7	H2O	307.4	NH4H2PO4
40	NO3-	92.1	PO43-	7.9	NH4+	94.7	H2O	218.2	NH4H2PO4
41	NO3-	31.1	PO43-	68.9	NH4+	45.4	H2O	242.8	NH4H2PO4
42	NO3-	58.8	PO43-	41.2	NH4+	69.5	H2O	369.5	NH4H2PO4
43	NO3-	15.4	PO43-	84.6	NH4+	53.9	H2O	190.2	NH4H2PO4
44	NO3-	15.8	PO43-	84.2	NH4+	54.1	H2O	202.8	NH4H2PO4
45	NO3-	24.1	PO43-	75.9	NH4+	59.7	H2O	188.7	NH4H2PO4
46	NO3-	25.1	PO43-	74.9	NH4+	61.1	H2O	170.5	NH4H2PO4
47	NO3-	27.1	PO43-	72.9	NH4+	56.6	H2O	303.9	NH4H2PO4
48	NO3-	32.4	PO43-	67.6	NH4+	65.7	H2O	159.3	NH4H2PO4
49	NO3-	37.7	PO43-	62.3	NH4+	68.2	H2O	174.9	NH4H2PO4
50	NO3-	40.8	PO43-	59.2	NH4+	70.3	H2O	158.5	NH4H2PO4
51	NO3-	48.1	PO43-	51.8	NH4+	70.2	H2O	293.3	NH4H2PO4

Part 2. The compiler has recalculated the above data to give 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	11.0	45.0	H3PO4	80.5	70.7	NH3	4.6	69.7	H2O	3.9
2	HNO3	17.2	34.4	H3PO4	68.8	29.5	NH3	6.0	44.2	H2O	7.9
3	HNO3	23.6	35.0	H3PO4	58.3	18.5	NH3	7.4	40.4	H2O	10.7
4	HNO3	34.6	38.7	H3PO4	41.1	9.9	NH3	10.1	41.7	H2O	14.2
5	HNO3	45.8	39.9	H3PO4	23.1	4.3	NH3	12.8	41.3	H2O	18.2
6	HNO3	58.2	40.9	H3PO4	3.4	0.5	NH3	15.9	41.4	H2O	22.6
7	HNO3	58.5	41.5	H3PO4	3.2	0.5	NH3	16.0	42.0	H2O	22.3
8	HNO3	0.0	0.0	H3PO4	77.5	16.7	NH3	6.7	24.8	H2O	15.8
9	HNO3	5.0	4.5	H3PO4	70.0	13.5	NH3	7.3	24.5	H2O	17.6
10	HNO3	10.0	8.2	H3PO4	62.6	11.0	NH3	8.1	24.5	H2O	19.3
11	HNO3	15.0	11.4	H3PO4	55.2	9.0	NH3	8.8	24.7	H2O	20.9
12	HNO3	16.8	12.4	H3PO4	52.6	8.3	NH3	9.1	24.7	H2O	21.5
13	HNO3	26.8	17.8	H3PO4	38.7	5.5	NH3	10.6	26.1	H2O	23.9
14	HNO3	32.0	20.6	H3PO4	31.9	4.4	NH3	11.5	27.4	H2O	24.6
15	HNO3	37.5	24.3	H3PO4	25.6	3.6	NH3	12.4	29.7	H2O	24.5
16	HNO3	44.5	30.7	H3PO4	18.8	2.8	NH3	13.7	34.9	H2O	23.0
17	HNO3	52.5	42.1	H3PO4	12.4	2.1	NH3	15.3	45.3	H2O	19.8
18	HNO3	57.0	41.8	H3PO4	5.5	0.9	NH3	16.0	43.4	H2O	21.6
19	HNO3	57.4	42.7	H3PO4	5.1	0.8	NH3	16.1	44.4	H2O	21.3
20	HNO3	58.2	43.7	H3PO4	4.5	0.7	NH3	16.2	45.2	H2O	21.1
21	HNO3	7.9	3.4	H3PO4	47.8	4.4	NH3	7.5	12.0	H2O	36.8
22	HNO3	15.3	6.1	H3PO4	36.7	3.2	NH3	8.3	12.3	H2O	39.6
23	HNO3	23.9	9.3	H3PO4	26.1	2.2	NH3	9.4	13.6	H2O	40.5
24	HNO3	29.9	12.2	H3PO4	20.6	1.8	NH3	10.4	15.6	H2O	39.1
25	HNO3	38.2	17.0	H3PO4	14.3	1.4	NH3	11.9	19.6	H2O	35.6
26	HNO3	52.2	32.7	H3PO4	7.5	1.0	NH3	14.9	34.5	H2O	25.3
27	HNO3	52.1	31.9	H3PO4	7.2	1.0	NH3	14.8	33.7	H2O	25.9
28	HNO3	9.3	4.6	H3PO4	51.2	5.5	NH3	7.7	14.2	H2O	31.8
29	HNO3	19.6	9.4	H3PO4	38.2	3.9	NH3	9.1	16.2	H2O	33.0
30	HNO3	0.0	0.0	H3PO4	61.4	6.0	NH3	3.6	6.0	H2O	35.1
31	HNO3	4.0	1.6	H3PO4	52.5	4.5	NH3	4.1	6.1	H2O	39.4
32	HNO3	7.2	2.7	H3PO4	46.1	3.7	NH3	4.6	6.4	H2O	42.1
33	HNO3	9.8	3.6	H3PO4	41.3	3.2	NH3	5.0	6.7	H2O	43.8
34	HNO3	12.8	4.5	H3PO4	36.6	2.8	NH3	5.6	7.3	H2O	45.0
35	HNO3	15.0	5.2	H3PO4	33.3	2.5	NH3	6.0	7.7	H2O	45.7
36	HNO3	18.2	6.2	H3PO4	28.8	2.1	NH3	6.6	8.3	H2O	46.4
37	HNO3	23.8	8.2	H3PO4	22.5	1.7	NH3	7.7	9.9	H2O	46.0
38	HNO3	31.5	11.5	H3PO4	15.5	1.2	NH3	9.4	12.7	H2O	43.6
39	HNO3	38.4	15.3	H3PO4	10.9	0.9	NH3	11.0	16.2	H2O	39.8
40	HNO3	47.9	23.4	H3PO4	6.4	0.7	NH3	13.3	24.1	H2O	32.4
41	HNO3	14.1	7.1	H3PO4	48.7	5.3	NH3	5.6	10.4	H2O	31.5
42	HNO3	26.9	12.1	H3PO4	29.3	2.8	NH3	8.6	14.3	H2O	35.2
43	HNO3	7.1	4.5	H3PO4	60.9	8.2	NH3	6.7	15.7	H2O	25.2
44	HNO3	7.2	4.3	H3PO4	59.7	7.7	NH3	6.7	14.8	H2O	26.4
45	HNO3	11.4	7.1	H3PO4	55.6	7.4	NH3	7.6	17.6	H2O	25.4
46	HNO3	12.1	8.2	H3PO4	56.3	8.1	NH3	8.0	19.9	H2O	23.5
47	HNO3	11.2	5.0	H3PO4	46.7	4.4	NH3	6.3	10.3	H2O	35.8
48	HNO3	16.1	11.3	H3PO4	52.3	7.9	NH3	8.8	22.9	H2O	22.7
49	HNO3	18.6	12.0	H3PO4	47.7	6.6	NH3	9.1	21.7	H2O	24.6
50	HNO3	20.7	14.3	H3PO4	46.7	6.9	NH3	9.6	24.6	H2O	23.0
51	HNO3	20.8	9.1	H3PO4	34.8	3.3	NH3	8.2	13.3	H2O	36.2

Notes:
   Table 2  ^a  The content is expressed as: mol/100 mol solute.

Method/Apparatus/Procedure:
   No information is given.

Source and Purity of Materials:
   No information is given.

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