1) Colour: Milk white or yellow colour softer powder 2) Produce process: Spray dry process/ Filter press 3) Basicity: at 55-65% 4) Water insoluble matter: lowest at 0.1%max 5) Iron content (Fe+) : 0.001%max. 6) lowest heavy metal content, health 7) The solution: is colourless liquid 8) Certificate approved by NSF ANSI/60 certification 9) Used for drinking water treatment and paper mills as retention agent, and paper remove electric charge and cosmetic industry.