Abstract

The present study is an investigation of the inhibitory effect of halides ions and the mineral salt potassium

sulphate; and the catalyzing influences of electrolytes; non – electrolytes and the mineral salt mercuric chloride on the thermal decomposition of potassium peroxydisulphate at 70 ^OC. The study showed that the specific inhibitory effect of halides ions on the thermal decomposition is in the order: F< Cl < Br < I; while the catalyzing influences of electrolytes and non – electrolytes on the decomposition in the order: HCl > KCl > H₂SO₄ > K₂SO₄ > Urea. It was also found that potassium sulphate acts as an inhibitor on the thermal decomposition; while mercuric chloride exhibits a catalyzing influence on the decomposition.

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