Arsenolite

Formula : As2O3

Space group: 
Isometric - Hexoctahedral HM symbol (4/m -3 2/m) Space Group: F d3m
Dana class: 
4.3.9.1III - 4 Oxide Minerals ; 4.3 Simple Oxides with a cation charge of 3+ (A+++2 O3) ; 4.3.9

Dernière mise à jour le 11.06.2018

THERMODYNAMICS

Individual properties (298.15 K)
M
g·mol-1
cm3·mol-1
ΔGºf
J·mol-1
ΔHºf
J·mol-1
J·mol-1·k-1
CP
J·mol-1·K-1
197.841 51.120 -575886 -656896 107.400 96.85
Reaction properties

Arsenolite + 3H2O ⇌ 2H2AsO3- + 2H+

298.15 K, 1 bar log10K: -19.86 ΔH°r: -292780 J·mol-1
T(°C) 0 25 60 100 150 200 250 300
log10K -21.39 -19.86 -18.09 -16.47 -14.93 -13.81 -13.05 -12.67