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SPS
PostTime:2012/5/7 10:23:31    hit:2063
 

   Bis-(sodium sulfopropyl)-disulfide (SPS)

Chemical name:

Bis-(sodium sulfopropyl)-disulfide

Empirical formula:

C6H12O6S4Na2

Molecular weight:

354

CAS NO.:

27206-35-5

Item                                                Description

Appearance                             White or light yellow solid

Assay                                     ≥90%

Solubility(at 20)                    In water approx.38%(very low in alcohols) Concentration in the bath         20-100mg/L

Valid period (year)                   2

Storage condition                     Stored in cool and dry place

Main application:

SPS is 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 mercapto compounds. An additional combination with dystuffs is also possible. Very good results are

obtained if used together with DPS and EXP 2887.

Package:

20kg / iron drum.

 
 
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