Thermal Decomposition of Sodium Carbonate Decahydrate

Na2CO3·10H2O → Na2CO3 + 10H2O

Обзор

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).

Участники

Роль Вещество Коэффициент Состояние
Продукт Sodium Carbonate Na₂CO₃ 1 (s)
Продукт Water H₂O 10 (g)

Пример из жизни

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

Промышленное значение

Anhydrous sodium carbonate (soda ash) is a major industrial chemical used in glass manufacturing, detergents, water treatment, and as a chemical feedstock.

Свойства

Тип
Decomposition
Обратимая
Да
Энергия
Эндотермическая
ΔH
155,0 kJ/mol

Связанные реакции

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 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.