Comment@Figure shows the first and second heating processes. Reference material are differnt with each other. There are some time lag between 1st and 2nd runs. Sulfidation starts at 170, and finishes at 570. Peak max at 347.
Broad peak, Hr=1753.8J/g.
The enthalpy of formation@Product is the cubic
MnSiNaCl-typej.
The enthalpy of formation is Hf=36.4Kcal/mol.
