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Why does soap fail to work in hard water 2024?

Oliver Flores | 2023-04-16 21:38:45 | page views：1477
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Emily Allen

Studied at University of California, Berkeley, Lives in Berkeley, CA
When soap is added to hard water, the Ca2+ and Mg2+ ions present in hard water react with soap. The sodium salts present in soaps are converted to their corresponding calcium and magnesium salts which are precipitated as scum. The insoluble scum sticks on the clothes and so the cleaning capacity of soap is reduced.
2023-04-18 21:38:45
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Ava Carter

QuesHub.com delivers expert answers and knowledge to you.
When soap is added to hard water, the Ca2+ and Mg2+ ions present in hard water react with soap. The sodium salts present in soaps are converted to their corresponding calcium and magnesium salts which are precipitated as scum. The insoluble scum sticks on the clothes and so the cleaning capacity of soap is reduced.
Cleaning Capacity of Soap with Hard and Soft Water (Theory) : Class ...
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