For soaftening of hard soap following material is used
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Citric acid is used to soften water in soaps and laundry detergents. A commonly used synthetic chelator is ethylenediaminetetraacetic acid (EDTA). Since Ca2+ and Mg2+ exist as nonvolatile salts, they can be removed by distilling the water.
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Explanation:
Citric acid is used to soften water in soaps and laundry detergents. A commonly used synthetic chelator is ethylenediaminetetraacetic acid (EDTA). Since Ca2+ and Mg2+ exist as nonvolatile salts, they can be removed by distilling the water.
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