Thermal Decomposition of Potassium Chlorate

2KClO₃ → 2KCl + 3O₂

Visão geral

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.

Participantes

Papel	Substância	Coeficiente	Estado
Produto	Potassium Chloride KCl	2	(s)
Produto	Oxygen O	3	(g)

Exemplo do cotidiano

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

Importância industrial

Utilizado em pirotecnia, fósforos e como fonte laboratorial de oxigénio. O clorato de potássio foi historicamente utilizado como explosivo primário, embora alternativas mais seguras o tenham substituído.

Propriedades

Tipo: Decomposition
Reversível: Não
Energia: Endotérmico
ΔH: 89,4 kJ/mol
Catalisador: Manganese dioxide (MnO₂)

Reações relacionadas

Decomposition of Calcium Hypochlorite Decomposition of Carbonic Acid Decomposition of Nitrous Oxide (Laughing Gas) Decomposition of Barium Peroxide Decomposition of Sodium Bicarbonate Decomposition of Water (Electrolysis) Decomposition of Silver Chloride (Photodecomposition) Thermal Decomposition of Lead(IV) Oxide Decomposition of Hydrogen Peroxide Decomposition of Ammonium Nitrate

Frequently Asked Questions

What is the equation for Thermal Decomposition of Potassium Chlorate?

The balanced equation is: 2KClO₃ → 2KCl + 3O₂.

What type of reaction is Thermal Decomposition of Potassium Chlorate?

Thermal Decomposition of Potassium Chlorate is a decomposition reaction.

Is Thermal Decomposition of Potassium Chlorate exothermic or endothermic?

Thermal Decomposition of Potassium Chlorate is endothermic (absorbs energy). The enthalpy change (ΔH) is 89.4 kJ/mol.

What conditions are needed for Thermal Decomposition of Potassium Chlorate?

This reaction requires a catalyst (Manganese dioxide (MnO₂)).