Electrolytic Production of Chlorate

NaCl + 3H2O → NaClO3 + 3H2

Descripción general

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

Rol Sustancia Coeficiente Estado
Reactivo Sodium Chloride NaCl 1 (aq)
Reactivo Water H₂O 3 (l)

Ejemplo cotidiano

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

Importancia industrial

Se producen aproximadamente 3,6 millones de toneladas de clorato de sodio anualmente, principalmente para el blanqueo de pulpa, herbicidas y tratamiento de agua potable.

Propiedades

Tipo
Electrochemical
Reversible
No
Energía
Endotérmico
ΔH
590,0 kJ/mol

Reacciones relacionadas

Electrolysis of Water Electrorefining of Copper Alkaline Battery Discharge Anodizing of Aluminum Cathodic Protection (Zinc Sacrificial Anode) Chlor-Alkali Electrolysis Chrome Electroplating Nickel-Metal Hydride Battery Sodium-Sulfur Battery Electrochemical CO₂ Reduction to CO

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.