Thermal Decomposition of Sodium Nitrate

2NaNO3 → 2NaNO2 + O2

概述

Sodium nitrate decomposes when heated above 380 C to form sodium nitrite and oxygen. This reaction illustrates the general behavior of nitrate salts, which release oxygen upon heating. Sodium nitrate (Chile saltpeter) was historically an important natural source of nitrogen for fertilizers and explosives.

参与者

角色 物质 系数 状态
反应物 Sodium Nitrate NaNO₃ 2 (s)
产物 Oxygen O 1 (g)
产物 Sodium Nitrite NaNO₂ 2 (s)

日常示例

Sodium nitrate is used as a food preservative (curing salt) in processed meats like bacon and hot dogs.

工业重要性

硝酸钠用于化肥、食品防腐（亚硝酸盐前体）和玻璃熔制，是重要的工业化学品和农业投入品。

属性

类型
Decomposition
可逆
否
能量
吸热
ΔH
83.0 kJ/mol

相关反应

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 Sodium Nitrate?
The balanced equation is: 2NaNO₃ → 2NaNO₂ + O₂.
What type of reaction is Thermal Decomposition of Sodium Nitrate?
Thermal Decomposition of Sodium Nitrate is a decomposition reaction.
Is Thermal Decomposition of Sodium Nitrate exothermic or endothermic?
Thermal Decomposition of Sodium Nitrate is endothermic (absorbs energy). The enthalpy change (ΔH) is 83.0 kJ/mol.