Thermal Decomposition of Sodium Nitrate

2NaNO3 → 2NaNO2 + O2

概要

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.

参加者

役割 物質 係数 状態
反応物 Sodium Nitrate NaNO₃ 2 (s)
生成物 Oxygen O 1 (g)
生成物 Sodium Nitrite NaNO₂ 2 (s)

日常の例

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

産業上の重要性

硝酸ナトリウムは肥料、食品保存、太陽熱発電所の熱媒体、花火の酸化剤として使用される。

特性

タイプ
Decomposition
可逆的
いいえ
エネルギー
吸熱性
ΔH
83.0 kJ/mol

関連する反応

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.