Formula: ZnBr2N.W.: 225.18Item Specification Testing resultAppearance colorless liquid conform Purity: 72%min 72.5%PH: 3-5 4Sulphates: 0.05% max 0.016%Chlorides(as Cl): 0.3% max 0.047%Water insoluble: 0.5% max 0.46%