Butynediol Propoxylate (BMP), CAS 1606-79-7, is a specialized chemical that plays a vital role in achieving high-quality finishes in nickel electroplating. Its unique properties as a brightener and leveling agent make it indispensable for many plating operations. NINGBO INNO PHARMCHEM CO.,LTD., a leading manufacturer and supplier of this chemical intermediate, is committed to providing products that meet stringent quality standards. Understanding the specific properties and recommended usage concentrations of BMP is key to optimizing electroplating performance and ensuring consistent results. This article explores these critical aspects, highlighting why quality BMP from trusted suppliers is essential.

Chemically known as 5-Oxa-2-Octyne-1,7-Diol or Dipropyloxy butynediol, BMP is an organic compound synthesized through the condensation of butynediol and propylene oxide. Its molecular formula is C7H12O3, with a molecular weight of approximately 144.17 g/mol. The physical form of BMP is typically a transparent liquid, often described as clear yellowish or brownish, depending on the specific grade and manufacturing process. The provided data indicates a pH range generally between 4.0 to 9.0, and it is miscible with water in all proportions, which is crucial for its application in aqueous electroplating baths.

The efficacy of BMP in nickel electroplating is attributed to its 'Class II brightener' designation. Class II brighteners are essential for producing bright, leveled deposits, particularly at low to medium current densities. BMP works synergistically with other additives in the plating bath to influence the crystal structure of the deposited nickel. It helps to refine the grain structure, leading to a smoother, brighter surface finish. The 'leveling' property is particularly valuable, as it allows the plating bath to smooth out microscopic irregularities on the substrate surface, creating a more uniform and aesthetically pleasing deposit.

When using BMP in nickel electroplating baths, specific concentrations are recommended to achieve optimal results. Typically, BMP is used at concentrations ranging from 20 mg/L to 120 mg/L, or sometimes higher, such as 50-150 mg/l, depending on the specific plating formulation and desired outcome. The consumption rate can vary, with estimates suggesting around 9 g/KAH (grams per thousand ampere-hours), indicating how much BMP is consumed during the electroplating process. Maintaining the correct concentration is critical; too little BMP may result in duller deposits, while too much can lead to brittleness or other undesirable side effects.

A significant advantage of BMP, as produced by manufacturers like NINGBO INNO PHARMCHEM CO.,LTD., is its production via a high-pressure method with physical decolorization. This process minimizes chemical degradation, preserving the compound's inherent properties. This leads to greater stability and more predictable performance in the electroplating bath. The material is also noted for its resistance to degradation by certain solvents, further enhancing its utility.

For businesses looking to buy Butynediol Propoxylate, understanding these properties and application parameters is vital. NINGBO INNO PHARMCHEM CO.,LTD. offers high-purity BMP from China, ensuring that electroplaters have access to a reliable and effective additive. Our commitment to quality means that our BMP will perform consistently, contributing to brighter, smoother nickel deposits and improving the overall efficiency and quality of your plating operations. We are your trusted source for this essential electroplating intermediate.