Question

Decomposition of potassium chlorate are performed in the lab to make oxygen. You are strictly advised to be careful with it. Why is that, what might happen?​

Answer 1

Potassium chlorate itself has a lot of toxicity and are bad for the skin and lungs. The reason why potassium chlorate needs to be handled with care is because while the thermal decomposition takes place, potassium chlorate starts to emit toxic fumes of chlorine and potassium oxide and it also emits very toxic fumes of hydrogen chloride and K2O.

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