Bis-(sodium sulfopropyl)-disulfide, identified by its CAS number 27206-35-5 and commonly referred to as SPS, is a critical chemical auxiliary that plays a significant role in modern electroplating. Its unique chemical properties make it an exceptional additive for acid copper plating, enhancing both the visual appeal and functional performance of copper deposits. NINGBO INNO PHARMCHEM CO.,LTD. offers this high-quality chemical to meet the demanding needs of the industry.

The molecular formula of SPS is C6H12Na2O6S4, and it typically presents as a white powder. Its molecular weight is approximately 354.4 g/mol. A key characteristic that underpins its effectiveness in electroplating is its good solubility in water, forming clear and transparent solutions at standard concentrations. This solubility ensures that it can be easily incorporated into plating baths and distributed evenly, leading to consistent results across the entire substrate surface.

In the realm of electroplating, SPS is primarily utilized as a top brightener and grain refiner. Its application in acid copper baths is widespread, contributing to a reduction in surface roughness and an increase in brightness. This makes it invaluable for decorative plating on consumer goods, automotive trim, and jewelry, where a mirror-like finish is desired. Moreover, its ability to improve the ductility of copper layers makes it suitable for functional coatings in applications that require flexibility and resistance to mechanical stress.

The compound is often used in conjunction with other plating additives, such as polyethers, amine polymers, and other sulfur-containing compounds, to achieve a synergistic effect. This allows electroplaters to fine-tune their formulations for specific applications, including the plating of printed circuit boards (PCBs), where precision and reliability are paramount. When manufacturers look to buy SPS, they are seeking a consistent and high-purity product that guarantees predictable performance.

NINGBO INNO PHARMCHEM CO.,LTD. prides itself on supplying SPS that meets stringent quality control measures. Our commitment ensures that clients receive a product that delivers on its promise of enhanced brightness, leveling, and overall improved plating quality. Understanding the chemical nature and application of SPS is key to unlocking its full potential in any electroplating process.

In summary, SPS is a technically advanced chemical auxiliary with significant benefits for copper electroplating. Its chemical properties, combined with its efficacy as a brightener and grain refiner, make it an essential component for achieving high-quality finishes. NINGBO INNO PHARMCHEM CO.,LTD. is your reliable partner for sourcing this vital chemical.