KCl

Formula : KCl

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
74.551 40.076 (Ref.: 97bpok/hel) Pokrovskii V., and Helgeson H.C., 1997b. Calculation of the standard partial molal thermodynamic properties of KCl0 and activity coefficients of aqueous KC1 at temperatures and pressures to 1000C and 5 kbar. Geochimica et Cosmochimica Acta, 61, p. 2175-2183. -410874 (Ref.: 97smi/mar) Smith R. M., Martell A. E., and Motekaitis R. J. (1997) NIST Critically Selected Stability Constants of Metal Complexes Database, Version 4.0. NIST Standard Reference Database 46. U.S. Department of Commerce -415040 (Ref.: 97smi/mar) Smith R. M., Martell A. E., and Motekaitis R. J. (1997) NIST Critically Selected Stability Constants of Metal Complexes Database, Version 4.0. NIST Standard Reference Database 46. U.S. Department of Commerce 162.247 (Ref.: Internal calculation) 45.28 (Ref.: 97bpok/hel) Pokrovskii V., and Helgeson H.C., 1997b. Calculation of the standard partial molal thermodynamic properties of KCl0 and activity coefficients of aqueous KC1 at temperatures and pressures to 1000C and 5 kbar. Geochimica et Cosmochimica Acta, 61, p. 2175-2183.
HKF coefficients
a1·10
J·mol-1·bar-1
 a2·10-2
J·mol-1
 a3
J·K·mol-1·bar-1
 a4·10-4
J·K·mol-1
 c1
J·mol-1·K-1
 c2·10-4
J·K·mol-1
 ω·10-5
J·mol-1
30.2863 41.3915 7.7889 -13.3386 -5.9999 25.2337 -0.1255
Reaction properties

Cl- + K+ ⇌ KCl

298.15 K, 1 bar log10K: -0.50 ΔH°r:4180 J·mol-1 (Ref.: 97smi/mar) Smith R. M., Martell A. E., and Motekaitis R. J. (1997) NIST Critically Selected Stability Constants of Metal Complexes Database, Version 4.0. NIST Standard Reference Database 46. U.S. Department of Commerce
T(°C) 0 25 60 100 150 200 250 300
log10K -0.53 -0.50 -0.38 -0.20 0.06 0.36 0.74 1.26
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
789.543153 0.120469 -44722.195303 -285.533394 2717625.889169