Chemical nature
Chemical name Bis-(Sodium Sulfopropyl)-Disulfide
Molecular formulaC6H12Na2 O6S4
Molecular weight354.4
CAS No.27206-35-5
Properties
Physical form White to yellowish powder
Concentration (%)≥95.0 (oxidation-reduction method)
PH3.0 ~ 7.0(38 % water solution)
Solubility(20℃)38 % water solution is transparent and clear
Application SPS is used as a brightener and grain refiner in copper electroplating baths at a concentration of 10-50mg/L.