Solid-Liquid Phase Equilibria of the Quaternary System (LiCl + LiBO2 + Li2B4O7 + H2O) at 308.15 K: Experimental and Theoretical Prediction
Table 6
Comparison of experimental and calculated values of invariant points in the quaternary system LiCl − LiBO2 − Li2B4O7 − H2O at 308.15 K.a
No.b
Value
Composition of the liquid phase, 100b
Equilibrium solid phase
LiCl
LiBO2
Li2B4O7
C
Experimental
46.66
0.00
0.21
LiCl·H2O + Li2B4O5(OH)4·H2O
Experimental calculated
Calculated
46.66
0.00
0.25
LiCl·H2O + Li2B4O5(OH)4·H2O
Experimental calculated
Experimental
0.00
6.18
0.45
LiB(OH)4·6H2O + Li2B4O5(OH)4·H2O
C
Calculated
0.00
10.65
0.55
LiB(OH)4·6H2O + Li2B4O5(OH)4·H2O
D
Experimental
43.69
6.44
0.25
LiCl·H2O + LiB(OH)4 + Li2B4O5(OH)4·H2O
D
Calculated
43.69
11.10
0.30
LiCl·H2O + LiB(OH)4 + Li2B4O5(OH)43H2O
F1
Experimental
3.36
3.87
0.26
LiB(OH)4 + LiB(OH)4·6H2O + Li2B4O5(OH)4·H2O
F1
Calculated
3.36
6.67
0.32
LiB(OH)4 + LiB(OH)4·6H2O + Li2B4O5(OH)4·H2O
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. bThe no. Column corresponds to the no. Column in Table 2.
