Polymer Ferric Sulphate,nontoxic and low corrosion. Polymer Ferric Sulphate Name: Polymer Ferric Sulphate (PFS)Molecular formula: [Fe2(OH)n(SO4)3-n/2]m (n<2, m=f(n)) Appearance: Light yellow amorphous powder, hygroscopic, readily soluble in water. 10%(W/W) aqueous solution is a transparent orange solution. PFS solid PFS solutionSpecification: in conformity with GB14591-93 ItemPFS solidPFS ...