Lammuchangite

Formula : TlAl(SO4)2:12H2O

Family: 
Sulfates

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
639.675 274.210 (Ref.: 84pan/stu) L.B. Pankratz, J.M. Stuve, and N.A. Gokcen, 'Thermodynamic Data for Mineral Technology,' Bulletin 677, U.S. Bureau of Mines (1984). -4947890 (Ref.: Internal calculation) -5819200 (Ref.: 09xio) Xiong, Y., 2009. The aqueous geochemistry of thallium: speciation and solubility of thallium in low temperature systems. Environmental Chemistry 6, 441-451. 854.000 (Ref.: 09xio) Xiong, Y., 2009. The aqueous geochemistry of thallium: speciation and solubility of thallium in low temperature systems. Environmental Chemistry 6, 441-451. 854.00 (Ref.: 84pan/stu) L.B. Pankratz, J.M. Stuve, and N.A. Gokcen, 'Thermodynamic Data for Mineral Technology,' Bulletin 677, U.S. Bureau of Mines (1984).
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.
854.00 0.00 0.00 (Ref.: 84pan/stu) L.B. Pankratz, J.M. Stuve, and N.A. Gokcen, 'Thermodynamic Data for Mineral Technology,' Bulletin 677, U.S. Bureau of Mines (1984).
Reaction properties

Lammuchangite ⇌ Al+3 + 2SO4-2 + Tl+ + 12H2O

298.15 K, 1 bar log10K: -16.49 ΔH°r:37510 J·mol-1 (Ref.: 09xio) Xiong, Y., 2009. The aqueous geochemistry of thallium: speciation and solubility of thallium in low temperature systems. Environmental Chemistry 6, 441-451.
T(°C) 0 25 60 100 150 200 250 300
log10K -17.23 -16.49 -15.96 -15.79 -16.02 -16.69 -17.85 -19.75
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-3190.761509 -0.501113 174074.768786 1155.326543 -10573659.693477