Berthierine(FeII)

Formula : (Fe2Al)(SiAl)O5(OH)4

Space group: 
Monoclinic - Domatic HM symbol (m) Space Group: Cm
Dana class: 
71.1.2c.2VIII- 71 Phyllosilicate Minerals ; 71.1 Phyllosilicates Phyllosilicate Sheets of Six-Membered Rings with 1:1 layers ; 71.1.2c Serpentine group (Amesite subgroup)

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
341.769 103.870 -3461297 -3777790 253.070 283.58
Reaction properties

Berthierine(FeII) + 10H+ ⇌ 2Al+3 + 2Fe+2 + H4SiO4 + 5H2O

298.15 K, 1 bar log10K: 33.29 ΔH°r: -369354 J·mol-1
T(°C) 0 25 60 100 150 200 250 300
log10K 39.20 33.29 26.50 20.30 14.16 9.15 4.82 0.82