... CAS No:7775-27-1 EINECS No.: 231-892-1 Appearance: white crystalline powder Brand: Mtchem Sodium Persulfate CAS No:7775-27-1Properties:Sodium ... crystalline powderAssay, %99.0Free acid, %≤0.01Cl,%≤0.0001Heavy metals (Pb),%≤0.0005Fe,%≤0.0005Mn,%≤0.00005Moisture,%≤0.05Active oxygen,%≥6 ... , butadiene etc.. Aps is also a kind of oxidizing agent:(1) Used in cleaning and picking of metal surface.(2) Used ...