Aluminium Sulphate (15.8%-17%) Our company maily engage in manufacturing raw materials, specialized in Alumiun sulphate, herewith please find our product introduction as follow: Aliminium Sulhate 15.8% min Appearance: White lumps/granules/ power Specification: Al2O3: 15.8% min Fe: 0.45% max PH value: 3.0 min Water-insoluble Matter: 0.15% max As: 0.0005% max Pb: 0.002% max Aluminium sulphate 16% min Appearance: White lumps/granules/ power Specification: Al2O3: 16% min Fe: 0.4% max PH value: 3.0 min Water-insoluble Matter: 0.15% max As: 0.0005% max Pb: 0.002% max Aluminium sulphate 17% min Appearance: White lumps/granules/ power Specification: Al2O3: 17% min Fe: 0.3% max PH value: 3.0 min Water-insoluble Matter: 0.15% max Aluminium sulphate 17%min Non Ferric Appearance: White lumps/granules/ power Specification: Al2O3: 17% min Iron: 0.01% PH value: 2.6 Water-insoluble: 0.5% max Appearance: White Flake or Blocks or Power Packing: 25 kgs in net bag, 25 mts in the 20'FCL Uses: Treatment of drinking water and industrial water, high-grade paper making and high-grade titanium pigment production. If you are interested in any product, please feel free to contact me: zoe at 0311chem.com thank you waiting for your early reply. We assure you that we can supply you with best quality and service at a competitive price on getting your exact enquiry.