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Polyaluminium Chloride is a yellow or light-yellow powder. It is tasteless, harmless and non-toxic when in contact with humans or aquatic life. The substance dissolves in water with ease and can even absorb water from the atmosphere. Aluminium oxide(Al2O3) %:30% Alkalinity%:40-90% PH (1% aqueous solution):3.5-5.0 Water insoluble %:0.2 Nitrogen:≤0.01