SPS 酸铜添加剂 电子铜箔添加剂 镀铜中间体

SPS (Bis-sodium sulfopropyl)-disulfide

Empirical formula:C6H12O6S4Na2

Molecular weight:354

CAS No.27206-35-5

Characteristic:

Item                                          Description

Appearance                             White to yellowish powder

Assay                                       ≥98%

Solubility(at 20℃)                     In water approx.38%(very low in alcohols)

Concentration in the bath         20-100mg/L

Valid period(year)                     1

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. PCB-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.

Package:

   20kg/fibre paper drum