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Preparation Of Oxygen Using Potassium Chlorate :Check us out at www.tutorvista.com Potassium chlorate is a compound containing potassium, chlorine and oxygen, with the chemical formula KClO3. In pure form, it is a white crystalline substance. It is the most common chlorate in industrial use, and is usually present in well-stocked laboratories. It is used as an oxidizing agent, to prepare oxygen, as a disinfectant, in safety matches, and in explosives and fireworks. Potassium chlorate ( KCLO3 ) decomposes upon heating to yield Potassium chloride and Oxygen Gas . Manganese dioxide ( MnO2 ) is mixed with Potassium chlorate and performs as the catalyst of this reaction . 2 KClO3 ----( Heat with MnO2 Catalyst )----2 KCl + 3 O2

Acetylene Explosion :This slide show illustrates the danger of an acetylene gas leak. The photos are being circulated by e-mail to fire fighters all over the country. There was an acetylene leak inside a plumber's van. The explosion occurred when he used his remote control to unlock the van. Chelsea Heights, suburb of Melbourne, Australia.