염소산칼륨의 열분해

2KClO3 → 2KCl + 3O2

개요

Potassium chlorate decomposes when heated (with MnO2 catalyst at ~200 C, or without catalyst at ~400 C) to form potassium chloride and oxygen gas. This reaction was historically used as a laboratory source of oxygen gas before compressed gas cylinders became widely available.

참여 물질

역할 물질 계수 상태
생성물 염화칼륨 KCl 2 (s)
생성물 산소 O 3 (g)

일상 속 예시

Safety matches contain potassium chlorate as the oxidizer, which decomposes and releases oxygen when struck to help ignite the match.

산업적 중요성

불꽃놀이, 성냥, 실험실 산소 공급원으로 사용됩니다. 염소산칼륨은 역사적으로 1차 폭약으로 사용되었지만, 더 안전한 대안으로 대부분 대체되었습니다.

자주 묻는 질문

What is the equation for 염소산칼륨의 열분해?
The balanced equation is: 2KClO₃ → 2KCl + 3O₂.
What type of reaction is 염소산칼륨의 열분해?
염소산칼륨의 열분해 is a 분해 reaction.
Is 염소산칼륨의 열분해 exothermic or endothermic?
염소산칼륨의 열분해 is endothermic (absorbs energy). The enthalpy change (ΔH) is 89.4 kJ/mol.
What conditions are needed for 염소산칼륨의 열분해?
This reaction requires a catalyst (Manganese dioxide (MnO₂)).