Electrolytic Production of Chlorate

NaCl + 3H2O → NaClO3 + 3H2

Visão geral

Electrolysis of hot NaCl solution without a membrane allows chlorine produced at the anode to react with hydroxide from the cathode, forming hypochlorite that disproportionates to chlorate at 70–80°C. Sodium chlorate (NaClO₃) is the precursor to chlorine dioxide (ClO₂), the dominant bleaching agent in modern paper mills.

Participantes

Papel Substância Coeficiente Estado
Reagente Sodium Chloride NaCl 1 (aq)
Reagente Water H₂O 3 (l)

Exemplo do cotidiano

The white paper in your books and notebooks was bleached using chlorine dioxide derived from electrolytically produced sodium chlorate.

Importância industrial

Cerca de 3,6 milhões de toneladas de clorato de sódio são produzidas anualmente, principalmente para a produção de dióxido de cloro para o branqueamento da pasta de papel. O processo é altamente eficiente em termos energéticos.

Propriedades

Tipo
Electrochemical
Reversível
Não
Energia
Endotérmico
ΔH
590,0 kJ/mol

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Frequently Asked Questions

What is the equation for Electrolytic Production of Chlorate?
The balanced equation is: NaCl + 3H₂O → NaClO₃ + 3H₂.
What type of reaction is Electrolytic Production of Chlorate?
Electrolytic Production of Chlorate is a electrochemical reaction.
Is Electrolytic Production of Chlorate exothermic or endothermic?
Electrolytic Production of Chlorate is endothermic (absorbs energy). The enthalpy change (ΔH) is 590.0 kJ/mol.