Copper electroplating intermediate ; SPS ; cas 27206-35-5 ; Copper foil new energy ; Bis-(Sodium Sulfopropyl)-Disulfide
Chemical nature
| Chemical name | Bis-(Sodium Sulfopropyl)-Disulfide | 
| Molecular formula | C6H12Na2 O6S4 | 
| Molecular weight | 354.4 | 
| CAS No. | 27206-35-5 | 
Properties
| Physical form | White to yellowish powder | 
| Concentration (%) | 
			 ≥90.0 (oxidation-reduction method)  | 
		
| PH | 3.0 ~ 7.0(38 % water solution) | 
| Solubility(20°C) | 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.