where v1n is the rate of SHS temperature increase at point n[๐c /min] . Tn+1 is the temperature at point n+1 second [๐c] . and Tn+1 is the temperature at point n-1 second [๐c].
รูปที่ 6 demonstrates the first step of the SHS kinetics characterization. In the chart with the signal of the 5 thermocouples, the baseline representing heating without exothermic reaction was established. The coefficient of determination of the baseline was better than o.999 . Next, the chart of the difference between the baseline and the real temperature was drawn.