used in making bleaching powder,water softening agent,sewage treatment,neutralization reaction,Desulfuration,waste incineration. ITEMstandard purity ,% ≥90.0whiteness , ≥88.2moisture, % ≤1.0Fe , % ≤0.1Mg and alkali metals, % ≤1.0insoluble matter in Hcl , % ≤1.0Residue through 325 mesh , % ≤1.0 Sell Technical Calcium Hydroxide