Jarosite(H)

Formula : (H3O)Fe3(SO4)2(OH)6

Family: 
Space group: 
Trigonal - Rhombohedral or Pyramidal HM symbol (3 or -3) Space Group: R 3
Dana class: 
30.2.5.1VI- 30 Anhydrous Sulfates Containing Hydroxyl or Halogen ; 30.2 Anhydrous Sulfates Containing Hydroxyl or Halogen where (A B)2 XO4 Zq ; 30.2.5 Alunite Group (Jarosite 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
480.735 147.900 -3226205 -3770200 448.200 437.50
Reaction properties

Jarosite(H) + 5H+ ⇌ 3Fe+3 + 2SO4-2 + 7H2O

298.15 K, 1 bar log10K: -5.14 ΔH°r: 100355 J·mol-1
T(°C) 0 25 60 100 150 200 250 300
log10K -2.14 -5.14 -8.93 -12.74 -17.01 -21.07 -25.25 -30.02