Bis(sodium sulfopropyl) Disulfide (SPS)

Identification

Synonyms: Disodium 3,3'-dithiobis[propanesulphonate]; SPS

De: Dinatrium-3,3'-dithiobis[propansulfonat]

Es: 3,3'-ditiobis[propanosulfonato] de disodio

Fr: 3,3'-dithiobis[propanesulfonate] de disodium

CAS No.: 17636-10-1

EC No: 248-324-3

Molecular Weight: 354

Molecular Formula: C6H12O6S4Na2

Structural Formula:  

Application*

Used as a brightening agent in acid copper baths for decorative and functional deposits (i.e. printed circuited boards). SPS is functionally compatible with most components of typical copper bath formulations, such as non-ionic surfactants, polymeric amines and other thio-compounds. An additional combination with dyestuffs is also possible.

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