FIELD: chemistry.
SUBSTANCE: invention relates to chemistry. Solid aluminium chloride-containing coagulant is obtained from a liquid colloidal solution of aluminium hydrochloride via reaction thereof with acetone in weight ratio of acetone to water in the aluminium hydrochloride solution of 1:(0.17-0.27) at room temperature. The method enables to turn liquid aluminium hydrochloride into a solid state at room temperature.
EFFECT: invention enables to obtain solid aluminium hydrochloride with an improved cost/performance ratio.
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