Hinsdalite

Formula : PbAl3(PO4)(SO4)(OH)6

Family: 
Alunite
Space group: 
Trigonal - Hexagonal Scalenohedral HM symbol (-3 2/m) Space Group: R 3m
Dana class: 
43.4.1.5VII - 43 Compound Phosphates, etc. ; 43.4 Compound Phosphates, etc. (Anhydrous Compound Anions With Hydroxyl or Halogen) ; 43.4.1

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
581.224 150.570 (Ref.: 63wyc) Wyckoff, R.W.G., 1963, Crystal Structures, Second edition, tome 4, Interscience Publishers, New York, p. 320-322. -4753000 (Ref.: 78ric/nri) Rickard D.T., Nriagu J.O., 1978, Aqueous environmental chemistry of lead. In: The biochemistry of lead in the environment. Part A. Ecological Cycles, J.O. Nriagu (Ed), Elsevier/North-Holland Biomedical Press, 219-284
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.
Reaction properties

Hinsdalite + 8H+ ⇌ 3Al+3 + H2PO4- + Pb+2 + SO4-2

298.15 K, 1 bar log10K: 6.69 ΔH°r: J·mol-1 (Ref.: )
T(°C) 0 25 60 100 150 200 250 300
log10K 6.69 6.69 6.69 6.69 6.69 6.69 6.69 6.69
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
6.690735 0.000000 0.000000 0.000000 0.000000