Formula : Ca2Al3Si3O12(OH)
Family:
Space group:
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pnmc
Dernière mise à jour le 25.01.2021
Zoisite
THERMODYNAMICS
Individual properties (298.15 K)
|
M g·mol-1 |
V° cm3·mol-1 |
ΔGºf J·mol-1 |
ΔHºf J·mol-1 |
Sº J·mol-1·k-1 |
CP J·mol-1·K-1 |
|---|---|---|---|---|---|
| 454.357 |
135.720  (Ref.: 04got) |
-6483166 (Ref.: Internal calculation) |
-6878500 (Ref.: 01sme/fra) Smelik, E.A., Franz, G., Navrotsky, A., 2001. A calorimetric study of zoisite and clinozoisite solid solutions. American Mineralogist 86, 80-91. |
297.380 (Ref.: 04got) |
350.90 (Ref.: 04got) |
CP(T) = a + b·T + ·c·T-2 (T in Kelvin)
|
a J·mol-1·K-1 |
b * 103 J·mol-1·K-2 |
c * 10-5 J·K·mol-1 |
Maier Kelley Ref. |
|---|---|---|---|
| 372.04 | 213.30 | -75.32 |
(Ref.: 04got) |
Reaction properties
Zoisite + 13H+ ⇌ 3Al+3 + 2Ca+2 + 3H4SiO4 + H2O
298.15 K, 1 bar
log10K: 43.85
ΔH°r:-485113 J·mol-1 (Ref.: 01sme/fra) Smelik, E.A., Franz, G., Navrotsky, A., 2001. A calorimetric study of zoisite and clinozoisite solid solutions. American Mineralogist 86, 80-91.
(Ref.: 01sme/fra) Smelik, E.A., Franz, G., Navrotsky, A., 2001. A calorimetric study of zoisite and clinozoisite solid solutions. American Mineralogist 86, 80-91. | T(°C) | 0 | 25 | 60 | 100 | 150 | 200 | 250 | 300 |
|---|---|---|---|---|---|---|---|---|
| log10K | 51.48 | 43.85 | 34.80 | 26.39 | 17.91 | 10.90 | 4.77 | -0.94 |
