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Aluminium sulphate when dissolved in water forms aluminium hydroxide and sulphuric acid.Since, aluminium hydroxide is insoluble in water, a clear solution is not obtained.
Al2(SO4)3 + 6H2O →2Al(OH)3 + 3H2SO4Aluminium Aluminiumsulphate Hydroxide

  • Chemistry - definitely not American government -

    !!

  • chemistry -

    In anhydrous condition aluminium sulphate is a white powder. Hydrated, it forms colourless, acicular, sour-tasting crystals. Aluminium sulphate dissociates in water to form a colloidal solution of aluminium hydroxide molecules and positively charged aluminium hydroxide ions (Al (OH)2+, Al (OH)2+):

    Al2(SO4)3 + 6 H2O <--> 2 Al(OH)3 + 3 SO42- + 6 H+

    Through this process, such aqueous solutions are reacting strongly acidic. The hydroxide formation comes – after the achievement of equilibrium – to a halt, so that the solution also contains some free Al3+ ions. The cationic activity of aluminium sulphate solutions is dissolved by the positively charged aluminium hydroxide ions, which are aggregated with the aluminium hydroxide molecules.

  • American government -

    Note from Bob Pursley's response, that Al2(SO4)3 IS soluble in water and it does NOT form a ppt; therefore, the solution of same is colorless.

  • American government -

    the bg5r2vwbbyv###76wrwa3#2q34wewqax@3w3#

  • American government -

    sorry 2005

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