Bis-(sodium sulfopropyl)-disulfide / SPS CAS 27206-35-5

Chemical Name: Bis-(sodium sulfopropyl)-disulfide

Synonym: 3,3′-Dithiobis-1-propanesulfonic acid, disodium salt; SPS

CAS No.: 27206-35-5

MF: C6H12O6S4Na2   MW: 354.4

Molecular structure:

 

Application scenarios

1. Printed Circuit Board (PCB) Electroplating

As a core component of acidic copper plating brighteners, it is used in PCB manufacturing. It effectively improves the brightness, smoothness, and ductility of the plating layer, ensuring the quality of conductive lines.

2. Decorative Electroplating

As a top-layer brightener, it is used in decorative copper plating of automotive parts, bathroom hardware, jewelry, and other products to achieve a bright, beautiful, and durable surface.

3. Integrated Circuit Manufacturing

It acts as an accelerator in the “copper interconnect” process of semiconductor chips. It promotes preferential deposition of copper at the bottom of micron/nanoscale trenches, achieving defect-free filling, which is crucial for chip performance.

4. Electrolytic Copper Foil Production

Used to produce high-quality, uniform, low-profile electrolytic copper foil. This copper foil is a key material in the manufacture of copper-clad laminates and is widely used in electronic products and lithium-ion batteries.

5. Alkaline Zinc-Nickel Batteries

It is used as an innovative electrolyte additive in cutting-edge research. It helps suppress the growth of zinc electrode dendrites.

Description

Bis-(sodium sulfopropyl)-disulfide / SPS CAS 27206-35-5

SPS is a top layer brightener for acid copper plating. SPS is used as a top layer brightener in decorative and electroplating applications.SPS can be used in combination with polyvinyl alcohols, non-ionic surfactants, amine polymers and other sulphur containing compounds.

 

Standard

Item Specification
Appearance White to light yellow power
Solubility(10% aqueous solution): Transparent & clear
Purity(HPLC) ≥99.0%; ≥95.0%
Moisture ≤1.0%

 

Application:

SPS is used in the production of electrolytic copper foils to produce high-quality low-profile copper foils. Low-profile electrolytic copper foils are widely used in the manufacture of electronic materials and in lithium-ion batteries.

 

Package:25kgs/Drum; 50kgs/Drum

 

Storage:

Protected from moisture and rain.

Avoid package broken during transportation.

Store in a dry and ventilated warehouse.

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