Why sulphuric acid is used in preparation of potash alum?
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2
hyy.
because For preparation of standard solution of Mohr salt {FeSO4.(NH4)2SO4.6H2O}, it's necessary to add dilute H2SO4 to prevent the Fe2+ ions of Mohr salt solution from undergoing oxidation (to Fe3+).
hope it helps
because For preparation of standard solution of Mohr salt {FeSO4.(NH4)2SO4.6H2O}, it's necessary to add dilute H2SO4 to prevent the Fe2+ ions of Mohr salt solution from undergoing oxidation (to Fe3+).
hope it helps
Answered by
5
sulfuric acid is added in the preparation of potash alum to prevent hydrolysis of the salt (aluminium sulphate). It helps to dissolve aluminium sulphate in warm water.
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