Phosgenite

Formula : Pb2(CO3)Cl2

Family: 
Chlorides
Space group: 
Tetragonal - Ditetragonal Dipyramidal HM symbol (4/m 2/m 2/m) Space Group: P 4/mbm
Dana class: 
16a.3.4.1V - 16a Carbonates - Hydroxyl or Halogen ; 16a.3 Carbonates - Hydroxyl or Halogen where (A B)2 (XO3) Zq ; 16a.3.3

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
545.314 87.400 (Ref.: 90rob/cam) Roberts, Willard L., Campbell, Thomas J., and Rapp, George R.: Encyclopedia of Minerals. (Van Nostrand Reinhold Co., 2nd ed., 1990) -952400 (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 -1071436 (Ref.: Internal calculation) 266.900 (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

Phosgenite + H+ ⇌ HCO3- + 2Cl- + 2Pb+2

298.15 K, 1 bar log10K: -9.57 ΔH°r:49187 J·mol-1 (Ref.: Internal calculation)
T(°C) 0 25 60 100 150 200 250 300
log10K -10.45 -9.57 -8.77 -8.23 -7.97 -8.10 -8.66 -9.84
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-2453.643329 -0.386552 131914.059176 891.645938 -7950714.617341