Canton Laboratories Pvt. Ltd. Manufactures Potassium Aluminium Sulphate. Canton Laboratories Pvt. Ltd. Is an ISO 9001-2000 certified company engaged in the manufacturing of Specialty High Purity Chemicals, chemicals and bulk drugs. The Potassium Aluminium Sulphate is available in form of granular powder or colourless powder, transparent, crystalline masses. The Potassium Aluminium Sulphate is freely soluble in water, very soluble in boiling water, soluble in glycerol, practically insoluble in ethanol [96%]. The Potassium Aluminium Sulphate has aluminium of max 0.2%. The Potassium Aluminium Sulphate has iron max 0.01%.