Chlor-Alkali Electrolysis

2NaCl + 2H2O → Cl2 + 2NaOH + H2

अवलोकन

Electrolysis of concentrated brine (NaCl solution) produces three essential industrial chemicals simultaneously: chlorine gas at the anode, sodium hydroxide solution at the cathode, and hydrogen gas as a byproduct. Modern membrane cells use ion-exchange membranes to separate products and achieve 95%+ current efficiency.

प्रतिभागी

भूमिका पदार्थ गुणांक अवस्था
अभिकारक Sodium Chloride NaCl 2 (aq)
अभिकारक Water H₂O 2 (l)
उत्पाद Sodium Hydroxide NaOH 2 (aq)

रोजमर्रा का उदाहरण

The chlorine in your tap water and the lye in drain cleaner both come from this single electrochemical process.

औद्योगिक महत्व

The chlor-alkali industry produces about 75 million tonnes of NaOH and 65 million tonnes of Cl₂ annually, consuming about 1% of global electricity.

गुण

प्रकार
Electrochemical
प्रतिवर्ती
नहीं
ऊर्जा
ऊष्माशोषी
ΔH
422.0 kJ/mol

संबंधित अभिक्रियाएँ

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Frequently Asked Questions

What is the equation for Chlor-Alkali Electrolysis?
The balanced equation is: 2NaCl + 2H₂O → Cl₂ + 2NaOH + H₂.
What type of reaction is Chlor-Alkali Electrolysis?
Chlor-Alkali Electrolysis is a electrochemical reaction.
Is Chlor-Alkali Electrolysis exothermic or endothermic?
Chlor-Alkali Electrolysis is endothermic (absorbs energy). The enthalpy change (ΔH) is 422.0 kJ/mol.