S # % of THF Pameters in mixed solvent system
Ksp x106 (M3) ∆G (Kj/mole) ∆ H (Kj/mole) ∆S (J/mole)
1 0 9.19±0.3 26.79±0.06 -20.8±0.21 -171±1.8
2 10 3.47±0.20 29.05±0.077 -14.28±0.03 -185.2±4.3
3 20 0.944±0.18 32.06±0.308 -24.72±0.06 -188±0.21
4 30 0.108±0.039 37.05±0.66 -6.02±0.21 -159±0.65
5 40 0.028±0.0013 41.64±0.210 -38.41±0.01 -278±0.599
6 50 0.000702±0.00022 48.71±1.45 -9..205±0.31 -232±3.21
Table 4: Effect of mixed solvent system (water + THF) on the thermodynamic parameters Ca(OH)2 at 5±1°C.