FeCl2

Formula : FeCl2

Family: 
Chlorides

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
126.752 39.460 (Ref.: 95rob/hem) Robie R.A., and Hemingway B.S., 1995. Thermodynamic properties of minerals and related substances at 298.15 K and 1 Bar (105 Pascals) pressure and at higher temperatures. U.S. Geol. Survey Bull., 2131, 461 pp. -301703 (Ref.: Internal calculation) -341160 (Ref.: 95par/kho) Parker, V.B., Khodakovsky, I.L. (1995) Thermodynamic properties of aqueous ions (2+ et 3+) of iron and the key compouds of iron. J. Phys. Chem. Ref. Data 24 (5) p. 1699-1745. 118.060 (Ref.: 95par/kho) Parker, V.B., Khodakovsky, I.L. (1995) Thermodynamic properties of aqueous ions (2+ et 3+) of iron and the key compouds of iron. J. Phys. Chem. Ref. Data 24 (5) p. 1699-1745. 76.67 (Ref.: 98cha) Chase, M.W.J., 1998. NIST-JANAF Thermochemical Tables, Journal of Physical Chemistry Reference Data, Vol. 9, 4th Edition. National Institute of Standards and Technology, Washington DC, 1951 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.
77.89 10.50 -3.87 (Ref.: 98cha) Chase, M.W.J., 1998. NIST-JANAF Thermochemical Tables, Journal of Physical Chemistry Reference Data, Vol. 9, 4th Edition. National Institute of Standards and Technology, Washington DC, 1951 pp.
Reaction properties

FeCl2 ⇌ 2Cl- + Fe+2

298.15 K, 1 bar log10K: 8.98 ΔH°r:-83000 J·mol-1 (Ref.: 95par/kho) Parker, V.B., Khodakovsky, I.L. (1995) Thermodynamic properties of aqueous ions (2+ et 3+) of iron and the key compouds of iron. J. Phys. Chem. Ref. Data 24 (5) p. 1699-1745.
T(°C) 0 25 60 100 150 200 250 300
log10K 10.24 8.98 7.35 5.67 3.74 1.92 0.08 -1.98
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-1558.506113 -0.253659 89252.887780 566.178399 -5085738.981385