Laurionite

Formula : PbClOH

Family: 
Chlorides
Space group: 
Orthorhombic - Dipyramidal HM symbol (2/m 2/m 2/m) Space Group: Pnam
Dana class: 
10.2.2.1IV- 10 Oxyhalides and Hydroxyhalides ; 10.2 Oxyhalides and Hydroxyhalides where A (O,OH) Xq ; 10.2.2

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
259.660 42.000 (Ref.: 90rob/cam) Roberts, Willard L., Campbell, Thomas J., and Rapp, George R.: Encyclopedia of Minerals. (Van Nostrand Reinhold Co., 2nd ed., 1990) -389057 (Ref.: 99lot/och) Lothenbach B., Ochs M., Wanner H., and Yui M., 1999. Thermodynamic data for the speciation and solubility of Pd, Pb, Sn, Sb, Nb and Bi in aqueous solution. JNC TN8400 99 011. -458275 (Ref.: Internal calculation) 112.100 (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

Laurionite + H+ ⇌ Cl- + Pb+2 + H2O

298.15 K, 1 bar log10K: 0.62 ΔH°r:6285 J·mol-1 (Ref.: Internal calculation)
T(°C) 0 25 60 100 150 200 250 300
log10K 0.50 0.62 0.71 0.75 0.73 0.61 0.37 -0.07
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-941.225158 -0.145787 51245.014888 342.410210 -3007776.158365