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What is aluminium sulfate?

A:

Quick Answer

Aluminium sulfate, also known as dialuminum trisulfate, is an aluminium salt used for textile printing and dyeing and in the process of water purification. It is a white solid when it is not in contact with water.

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Full Answer

Aluminium sulfate is obtained from the reaction of aluminium hydroxide with sulfuric acid or from the reaction of aluminium metal with a solution of sulfuric acid. When dissolved in water, it splits into aluminium hydroxide and sulfuric acid. Due to this property, it is used to lower the pH of garden soils. Its chemical formula is Al2O12S3 or Al2(SO4)3 and its molar mass is 342.15 grams per mole.

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