... solid and liquid Polyalumiuium Chloride,including spray drying powder and drum drying granular.As a big manufacturer ... ,sample can be sent.ProcessSpecificationItem IndexAppearance White powder,light yellow powder AL2O3% 25-32Basicity 70-80Max. water ... , leather industry, brewage industry, meat-processing industry, coal-washing, metallurgy industry, mine, pharmacy, paper-making, and purification ...