Thermal Decomposition of Potassium Chlorate

2KClO3 → 2KCl + 3O2

ภาพรวม

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.

ผู้เข้าร่วม

บทบาท สาร สัมประสิทธิ์ สถานะ
ผลิตภัณฑ์ Potassium Chloride KCl 2 (s)
ผลิตภัณฑ์ Oxygen O 3 (g)

ตัวอย่างในชีวิตประจำวัน

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

ความสำคัญทางอุตสาหกรรม

Used in pyrotechnics, matches, and as a laboratory oxygen source. Potassium chlorate was historically used as a primary explosive, though safer alternatives have largely replaced it.

คุณสมบัติ

ประเภท
Decomposition
ย้อนกลับได้
ไม่
พลังงาน
ดูดความร้อน
ΔH
89.4 kJ/mol
ตัวเร่งปฏิกิริยา
Manganese dioxide (MnO₂)

ปฏิกิริยาที่เกี่ยวข้อง

Decomposition of Ammonium Nitrate Decomposition of Calcium Hypochlorite Decomposition of Carbonic Acid Decomposition of Iron(II,III) Oxide (Direct Reduction) Decomposition of Nitrous Oxide (Laughing Gas) Decomposition of Barium Peroxide Decomposition of Sodium Bicarbonate Decomposition of Water (Electrolysis) Thermal Decomposition of Copper(II) Carbonate Cracking of Octane (Thermal Cracking)

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)).