Canton Laboratories Pvt. Ltd. Offers Aluminium Ammonium Sulphate USP. Canton Laboratories Pvt. Ltd., an ISO 9001-2000 awarded company manufactures Specialty High Purity Chemicals, chemicals and bulk drugs. The Aluminium Ammonium Sulphate USP comes in large, colourless, crystalline fragments or white powder. The Aluminium Ammonium Sulphate USP is freely soluble in water, freely but slowly soluble in glycerine, insoluble in alcohol, very soluble in boiling water. The Aluminium Ammonium Sulphate USP has alkalise and alkaline earths of max. 0.5 %. The Aluminium Ammonium Sulphate USP has heavy metals of max. 0.5%.