Solid-Liquid Phase Equilibria of the Quaternary System NaCl + NH₄Cl + NaHCO₃ + NH₄HCO₃ + H₂O at 283.15 and 313.15 K

Table 2

The comparison of solubility data of ternary systems at 283.15 K, 313.15 K, and 0.1 MPa^a.

No	Composition of liquid phase, 100 ^b				Solid phase^c	Reference
	Na^+	NH4^+	Cl^−	HCO3^−
283.15 K
1	10.51	0.00	15.80	0.59	S + SB	This work
2	4.25	7.29	19.36	0.00	A + S	[13]
	4.96	6.23	19.92	0.00	A + S	This work
3	0.00	9.03	15.69	3.62	AB + A	This work
4	1.39	2.45	0.00	12.00	AB + SB	This work
313.15 K
1	11.21	0.00	15.62	0.94	S + SB	[12]
	10.48	0.00	15.62	0.99	S + SB	This work
2	6.017	6.63	22.05	0.00	A + S	[14]
	5.91	6.73	22.41	0.00	A + S	This work
3	0.00	12.25	19.09	8.73	AB + A	This work
	1.46	5.11	0.00	21.20	AB + SB	[12]
4	1.70	6.14	0.00	25.30	AB + SB	This work

^aStandard uncertainties u are u (T) = 0.1 K, u (p) = 0.005 MPa, u_r (Na⁺) = 0.003, u_r (NH₄⁺) = 0.003, u_r (Cl⁻) = 0.003, and u_r (HCO₃⁻) = 0.003. ^b, Mass fraction, ^cA: NH₄Cl, S: NaCl, AB: NH₄HCO₃, SB: NaHCO₃.