Abstract
Pyrolyses of barium organic acid salts, i. e., caprylate, laurate, stearate and naphthenate, were studied in the temperature range of 25∼600°C in Ar or air flow by thermogravimetry (TG)-differential thermal analysis (DTA), infrared and X-ray analyses. Decomposition reaction of the salts and immediate evaporation of the organic product were found to take place in the range of 400∼500°C in Ar flow, where the pyrolysis temperature was independent of the organic parts of the salts. Pyrolysis in air flow was initiated at much lower temperatures than that in Ar flow, which was attributed to the combustion of organic part of the salts. The pyrolysis product of each salt was found to be BaCO3 both in Ar and air.
