Formula : KH2PO4
Family:
Dernière mise à jour le 25.01.2021
KH2PO4
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 |
|---|---|---|---|---|---|
| 136.086 |
-1418076  (Ref.: Internal calculation) |
-1570700 (Ref.: 74nau/ryz) Naumov G.B., Ryzhenko B.N., and Khodakovsky I.L., 1974. Handbook of Thermodynamic Data. U.S. Geol. Surv.WRD 74 001, 328 pp. |
134.850 (Ref.: 74nau/ryz) Naumov G.B., Ryzhenko B.N., and Khodakovsky I.L., 1974. Handbook of Thermodynamic Data. U.S. Geol. Surv.WRD 74 001, 328 pp. |
116.57 (Ref.: 74nau/ryz) Naumov G.B., Ryzhenko B.N., and Khodakovsky I.L., 1974. Handbook of Thermodynamic Data. U.S. Geol. Surv.WRD 74 001, 328 pp. |
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. |
|---|---|---|---|
| 116.57 | 0.00 | 0.00 |
(Ref.: 74nau/ryz) Naumov G.B., Ryzhenko B.N., and Khodakovsky I.L., 1974. Handbook of Thermodynamic Data. U.S. Geol. Surv.WRD 74 001, 328 pp. |
Reaction properties
KH2PO4 ⇌ K+ + H2PO4-
298.15 K, 1 bar
log10K: 0.28
ΔH°r:15960 J·mol-1 (Ref.: 74nau/ryz) Naumov G.B., Ryzhenko B.N., and Khodakovsky I.L., 1974. Handbook of Thermodynamic Data. U.S. Geol. Surv.WRD 74 001, 328 pp.
(Ref.: 74nau/ryz) Naumov G.B., Ryzhenko B.N., and Khodakovsky I.L., 1974. Handbook of Thermodynamic Data. U.S. Geol. Surv.WRD 74 001, 328 pp. | T(°C) | 0 | 25 | 60 | 100 | 150 | 200 | 250 | 300 |
|---|---|---|---|---|---|---|---|---|
| log10K | -0.01 | 0.28 | 0.53 | 0.69 | 0.74 | 0.67 | 0.46 | 0.07 |
