Comment
1st and 2nd runs are shown　
However, 2nd run was measured the day after 1st run　
Reaction occurs over 525-791℃. Absorption in peak top of exothermal events corresponds to the melting of Al (660℃)　
The enthalpy of formation
Product is the tetragonal　 Al2S3. Exothermic heat amounts to 2713J/g
which corresponds to ΔH=114.8Kcal/mol