Sodium Persulfate CAS No:7775-27-1 EINECS No.: 231-892-1 Appearance: white ... crystalline powder Brand: Mtchem Sodium Persulfate CAS No:7775-27-1Properties:Sodium persulfate is a white, crystalline, odourless salt. ... , %99.0Free acid, %≤0.01Cl,%≤0.0001Heavy metals (Pb),%≤0.0005Fe,%≤0.0005Mn,%≤0.00005Moisture,%≤0.05Active oxygen,%≥6 ... slightly corroding effect. Sodium Persulfate CAS No:7775-27-1