How Washing soda can be used to remove both temporary and permanent hardness in water?
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Sodium carbonate,is also known as washing soda.
Washing Soda can remove temporary and permanent hardness from water. It is soluble in water and adds a large amount of carbonate ions to the water.
These react with dissolved calcium and magnesium ions in the water to produce insoluble precipitates. Sodium carbonate is soluble but calcium carbonate and magnesium carbonate are insoluble.
Chemical formula is .
- It is hygroscopic in nature .
- It absorbs moisture from the air.
- It is highly soluble in water and forms strongly alkaline water solution.
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