SP also called Bis-(sodium sulfopropyl)-disulficle,the Cas No.is 27206-35-5.And the molecular formular is C₆H₁₂O₆S₄Na₂. It is white or yellowish powder.
PS is used as a brightener in acidic copper baths for decorative and functional deposits(i.e Printed circuit boards ).SPS is functionally compatible with most components of typical copper bath formulations,such as non-ionic surfactants,polymeric amines and other mercapto compounds.An additional combination with dyestuffs is also possible.Very good results are obtained if used together with DPS and EXP 2887.

Chemical name:PS
Other name:Bis-(sodium sulfopropyl)-disulficle
Molecular formula:C₆H₁₂O₆S₄Na₂
Molecular weight:334.41
CAS NO.:27206-35-5
Appearance: White or yellowish powder.
Assay:65%
Package:20kg/drum