Thermal Stability Studies on Some Metal Soaps of Hura Crepitans Seed Oil
نویسندگان
چکیده
Thermal stability studies on some metal soaps of Hura crepitans seed oil prepared by metathesis in aqueous alcohol solution were carried out. The kinetics of the decomposition was studied thermogravimetrically in the temperature range 160 – 200 C. The values of the rate constant are of the order 10min and temperature-dependent. The enthalpy of activation (∆H) of the initial stage of decomposition determined is in the range 9.8 – 37.8 kJmol. The thermal stability of the metal soaps was studied in the temperature range 50 – 600 C under nitrogen using thermogravimetric analyzer (TGA). The thermal stability of the soaps was assessed in terms of temperatures at which various extents of decomposition were attained and weight loss at the initial stage of decomposition. Except zinc soap, the weight loss for the metal soaps was less than 10% at temperature up to 250 C. The results suggest that the metal soaps Hura crepitans seed oils could have some industrial applications.
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