Cerussite

Formula : PbCO3

Family: 
Space group: 
Orthorhombic - Dipyramidal HM symbol (2/m 2/m 2/m) Space Group: Pmcn
Dana class: 
14.1.3.4V - 14 Anhydrous Carbonates ; 14.1 Anhydrous Carbonates with Simple Formula A+ CO3 ; 14.1.3 Aragonite Group (Orthorhombic: Pmcn)
High temperature: 
Stable at room temperature.
Geological context: 
Present as an alteration mineral of weathering profile above lead -bearing deposits.

Dernière mise à jour le 25.01.2021

THERMODYNAMICS

Reaction properties

Cerussite + H+ ⇌ HCO3- + Pb+2

298.15 K, 1 bar log10K: -2.96 ΔH°r:12709 J·mol-1 (Ref.: Internal calculation)
T(°C) 0 25 60 100 150 200 250 300
log10K -3.21 -2.96 -2.78 -2.70 -2.76 -2.96 -3.31 -3.88