Canton Laboratories Pvt. Ltd offers Aluminium Potassium Sulphate USP. Canton Laboratories Pvt. Ltd. Has been accredited with ISO 9001-2000 certification, manufactures Specialty High Purity Chemicals, chemicals and bulk drugs. The Aluminium Potassium Sulphate USP comes in large, colourless crystals, crystalline fragments or white powder. The Aluminium Potassium Sulphate USP is freely soluble in water, very soluble in boiling water, slowly soluble in glycerine, insoluble in alcohol. The Aluminium Potassium Sulphate USP has heavy metals of max 0.002%.