Potassium persulfate

Potassium persulfate Identification Name Potassium persulfate Synonyms Potassium peroxydisulfate Molecular Structure Molecular Formula K2S2O8 Molecular Weight 270.31 CAS Registry Number 7727-21-1 EINECS 231-781-8 Properties Density 2.47 Melting point 100 ºC Water solubility 5 g/100 mL (20 ºC) Safety Data Hazard Symbols O;Xn Details Risk Codes R22;R36/37/38;R42/43;R8 Details Safety Description S22;S24;S26;S37 Details Transport Information UN 1492 Specifications Potassium Persulfate Appearance : white crystalline powder competitive price high purity CAS NO.7727-21-1 Potassiuatem persulfIt is a foof additive and it is used in organic chemistry a s an oxidizing agent for instance in the Elbs persulfate oxidation . Decompose in storage under conditions of moisture (Wate/wate vapor ) and/or excessive heat causing release of oxides of sulfur and oxygen that supports combustion Decomposition could form a high temperature melt .See section 10( stability and reactivity) Specification: Item index Excellent product First grade Qualified Potassium persulfate(K2S2O8)mass fraction/% ≥ 99.0 98.5 98.0 Ph value(50g/L solution)¡¡ 4.0-6.0 4.0-6.0 4.0-6.0 Iron(Fe)mass fraction/%≤ 0.001 0.003 0.004 Chloride( Cl)mass fraction/% ≤ 0.005 0.010 0.020 Ammonium salts(NH4 )mass fraction/% ≤ 0.3 0.5 0.7 Moisture % ≤ 0.15 0.20 0.30 Manganese(Mn)mass fraction/ % ≤ 0.0003 0.0004 0.0005 Heavy metal(Pb)%≤ 0.001 0.002 0.003