Thermal Decomposition of Sodium Carbonate Decahydrate

Na2CO3·10H2O → Na2CO3 + 10H2O

Descripción general

Washing soda (sodium carbonate decahydrate) loses its water of crystallization when heated. This dehydration reaction produces anhydrous sodium carbonate (soda ash). The hydrated crystals are transparent but become opaque white powder as water is driven off (efflorescence).

Participantes

Rol Sustancia Coeficiente Estado
Producto Sodium Carbonate Na₂CO₃ 1 (s)
Producto Water H₂O 10 (g)

Ejemplo cotidiano

When washing soda crystals are left in dry air, they slowly lose water and turn into a white powder through this efflorescence process.

Importancia industrial

Relevante en la industria del vidrio, detergentes y en la purificación industrial del carbonato de sodio.

Propiedades

Tipo
Decomposition
Reversible
Sí
Energía
Endotérmico
ΔH
155,0 kJ/mol

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Frequently Asked Questions

What is the equation for Thermal Decomposition of Sodium Carbonate Decahydrate?
The balanced equation is: Na₂CO₃·10H₂O → Na₂CO₃ + 10H₂O.
What type of reaction is Thermal Decomposition of Sodium Carbonate Decahydrate?
Thermal Decomposition of Sodium Carbonate Decahydrate is a decomposition reaction. It is reversible under certain conditions.
Is Thermal Decomposition of Sodium Carbonate Decahydrate exothermic or endothermic?
Thermal Decomposition of Sodium Carbonate Decahydrate is endothermic (absorbs energy). The enthalpy change (ΔH) is 155.0 kJ/mol.