Solid-Liquid Phase Equilibria of the Quaternary System (LiCl + LiBO₂ + Li₂B₄O₇ + H₂O) at 308.15 K: Experimental and Theoretical Prediction

Table 2

Solubilities in the quaternary system LiCl − LiBO₂ − Li₂B₄O₇ − H₂O at 308.15 K and 0.1 MPa.^a

No.	Composition of the liquid phase, 100^b			Composition of the liquid phase, 100Z/[(g/100 g of salt)]				Solid phase^d
	LiCl	LiBO2	Li2B4O7	Z (LiCl)	Z (LiBO2)	Z (Li2B4O7)	Z (H2O)
1, A^e	44.25	8.25	0.00	84.29	15.71	0.00	90.48	LC + LB2
2	44.11	7.47	0.12	85.32	14.45	0.23	93.42	LC + LB2
3	43.58	7.06	0.20	85.72	13.89	0.39	96.70	LC + LB2
4, B^e	3.74	5.18	0.00	41.93	58.07	0.00	1021.08	LB2 + LB8
5	3.65	4.43	0.12	44.51	54.03	1.46	1119.51	LB2 + LB8
6	3.56	4.09	0.17	45.53	52.30	2.17	1178.77	LB2 + LB8
7, C	46.66	0.00	0.21	99.55	0.00	0.45	113.36	LC + LB4
8	45.70	1.43	0.23	96.49	3.02	0.49	111.15	LC + LB4
9	44.94	3.09	0.22	93.14	6.40	0.46	107.25	LC + LB4
10	44.35	4.95	0.24	89.52	9.99	0.49	101.86	LC + LB4
11, F1	43.69	6.44	0.25	86.29	13.22	0.49	97.51	LC + LB4 + LB2
12	24.86	5.97	0.24	80.01	19.22	0.77	221.85	LB4 + LB2
13	15.07	5.49	0.23	72.48	26.41	1.11	381.00	LB4 + LB2
14	9.58	4.99	0.24	64.69	33.69	1.62	575.22	LB4 + LB2
15	6.62	4.37	0.25	58.90	38.88	2.22	789.68	LB4 + LB2
16, F2	3.36	3.87	0.26	44.86	51.67	3.47	1235.11	LB4 + LB2 + LB8
17	2.33	3.97	0.28	35.41	60.33	4.26	1419.76	LB4 + LB8
18	1.41	4.66	0.35	21.96	72.59	5.45	1457.63	LB4 + LB8
19, D^e	0.00	6.18	0.45	0.00	93.21	6.79	1408.30	LB4 + LB8

^aStandard uncertainties u, u (T) = 0.02 K, u (p) = 0.005 MPa, u (LiCl) = 0.003, u (LiBO₂) = 0.005, and u (Li₂B₄O₇) = 0.005. ^b, mass fraction. ^cZ = Jänecke index. ^dLC: LiCl·H₂O; LB8: LiBO₂·8H₂O; LB4: Li₂B₄O₇·3H₂O; LB2: LiBO₂·2H₂O. ^eThe solubilities were cited from ref. [16, 18].