C4FH13

Formula : Ca4Fe2O7:13H2O

Family: 
LDH

Dernière mise à jour le 25.01.2021

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
618.200 274.400 (Ref.: 97tay) Taylor H.F.W. , 1997 Cement Chemistry, 2nd. Ed., Thomas Telford, London. -6443634 (Ref.: Internal calculation) -7417395 (Ref.: 85bab/mat) Babushkin, V.I., Matveyev, G.M., and Mchedlov-Petrossyan, O.P. 1985. Thermodynamics of Silicates. New York, New York: Springer-Verlag. NNA.19920401.0112 705.350 (Ref.: 10bbla/bou) Blanc, Ph.; Bourbon, X.; Lassin, A.; Gaucher, E.C. 2010 - Chemical model for cement-based materials: Thermodynamic data assessment for phases other than C-S-H. Cement and Concrete Research, 40, p. 1360-1374. 787.08 (Ref.: 85bab/mat) Babushkin, V.I., Matveyev, G.M., and Mchedlov-Petrossyan, O.P. 1985. Thermodynamics of Silicates. New York, New York: Springer-Verlag. NNA.19920401.0112
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.
494.34 981.86 0.00 (Ref.: 85bab/mat) Babushkin, V.I., Matveyev, G.M., and Mchedlov-Petrossyan, O.P. 1985. Thermodynamics of Silicates. New York, New York: Springer-Verlag. NNA.19920401.0112
Reaction properties

C4FH13 + 14H+ ⇌ 4Ca+2 + 2Fe+3 + 20H2O

298.15 K, 1 bar log10K: 95.14 ΔH°r:-569205 J·mol-1 (Ref.: 85bab/mat) Babushkin, V.I., Matveyev, G.M., and Mchedlov-Petrossyan, O.P. 1985. Thermodynamics of Silicates. New York, New York: Springer-Verlag. NNA.19920401.0112
T(°C) 0 25 60 100 150 200 250 300
log10K 104.36 95.14 84.81 75.66 66.86 59.94 54.15 48.95
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-2279.067775 -0.349788 144862.558872 831.403507 -5744868.984945