Comment Fugure shows only the heating process.@
Sulfidation reaction starts above 300Ž, and finishes at 510Ž.
Exothermic peak,@max 412Ž@ƒ¢Hr= -871.8 J/g@
The enthalpy of formation@
Products: main phase is hexagonal
CoS. Coexisted phase is cubic Co9S8. Calculated enthalpy of formation of CoS is approximately ĢHf= 19.7Kcal/mol
