Mackinawite

Formula : FeS

Family: 
Space group: 
Tetragonal - Ditetragonal Dipyramidal HM symbol (4/m 2/m 2/m) Space Group: P 4/nmm
Dana class: 
2.7.2.1II- 2 Sulfide Minerals ; 2.7 Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=9:8 ; 2.7.2

Dernière mise à jour le 25.01.2021

THERMODYNAMICS

Reaction properties

Mackinawite + H+ ⇌ Fe+2 + HS-

298.15 K, 1 bar log10K: -3.54 ΔH°r:-10805 J·mol-1 (Ref.: Internal calculation)
T(°C) 0 25 60 100 150 200 250 300
log10K -3.40 -3.54 -3.77 -4.04 -4.41 -4.82 -5.33 -6.03