Thermal Decomposition of Sodium Nitrate

2NaNO3 → 2NaNO2 + O2

Visão geral

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.

Participantes

Papel Substância Coeficiente Estado
Reagente Sodium Nitrate NaNO₃ 2 (s)
Produto Oxygen O 1 (g)
Produto Sodium Nitrite NaNO₂ 2 (s)

Exemplo do cotidiano

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

Importância industrial

O nitrato de sódio é utilizado em fertilizantes, conservação alimentar, fluidos de transferência de calor em centrais solares e como oxidante em fogos de artifício.

Propriedades

Tipo
Decomposition
Reversível
Não
Energia
Endotérmico
ΔH
83,0 kJ/mol

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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.