Reaction  of chlorine with sodium hydroxide and alkalis

Reaction  of chlorine with sodium hydroxide and alkalis

Chlorine reacts with cold dilute sodium hydroxide solution to give sodium chloride and sodium chlorate (I).

2OH^– (aq) + Cl₂ (g)  → Cl^– (aq) + ClO^– (aq) + H₂O (l)

Chlorine reacts with warm concentrated sodium hydroxide solution to give sodium chloride and sodium chlorate (V):

6OH^– (aq) + 3Cl₂ (g)  → 5Cl^– (aq) + ClO₃^– (aq) + 3H₂O (l)

^{Chlorate (V)}

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