SP/ SPS (C6H12O6S4Na2) Bis-(sodium sulfopropyl)-disulfide CAS No:27206-35-5 Appearance: White or light yellow solid Assay: â?¥85%, 95% Application: It is used as brightener in acidic copper baths for decorative and functional deposits(i.e. Printed circuit boards), it 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 EXP2887.
