Sodium zincate
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Sodium zincate (Na2ZnO2) is a complex salt of sodium. It is formed by the action of sodium hydroxide, a strong alkali on metallic zinc.
- Zn + 2 NaOH → Na2ZnO2 + H2
The reaction takes place at room temperature.
Sodium zincate can also be prepared by the fusion of the oxides involved viz. sodium oxide (Na2O) and zinc oxide (ZnO).
- Na2O + ZnO → Na2ZnO2.