For professionals in the rubber industry, a thorough understanding of the technical specifications of the chemicals used is fundamental to achieving optimal results. N-cyclohexyl-2-benzothiazole sulfenamide (CBS) is a widely utilized rubber accelerator, and its precise technical characteristics dictate its performance in various applications. NINGBO INNO PHARMCHEM CO.,LTD. provides detailed specifications for its CBS product to ensure clarity and efficacy for our clients.

CBS, identified by CAS number 95-33-0 and with the molecular formula C13H16N2S2, is typically supplied as a pale yellow to off-white granular solid. One of the most critical specifications for an accelerator is its melting point, which influences its processing behavior. CBS generally exhibits an initial melting point above 97°C, ensuring stability at typical processing temperatures. This characteristic is vital for maintaining the integrity of the rubber compound before vulcanization begins. Low heating loss, typically not exceeding 0.30%, is another key indicator of purity and product quality, signifying minimal volatile content.

The purity of CBS is crucial for its consistent performance. High purity levels, often specified as a minimum of 97.0%, ensure that the accelerator functions as intended without interference from impurities. Ash content, another measure of purity, is usually kept very low, often below 0.30%. Free amine content is also monitored, as elevated levels can sometimes affect scorch behavior or lead to discoloration in certain rubber formulations. For CBS, limits are typically set at 0.5% max for free amines. Similarly, the percentage of material insoluble in methanol, which can indicate the presence of inorganic impurities or by-products, is also kept to a minimum, usually below 0.5%.

The physical form of CBS also plays a role in its handling and dispersion. It is commonly available in granular form, which offers advantages over powders, such as reduced dust generation and improved handling safety. The effectiveness of CBS can be further influenced by its synergistic effects with other rubber chemicals. For instance, combining CBS with alkaline accelerators like thiurams or dithiocarbamates can enhance its activity, leading to faster curing rates or improved final properties. When manufacturers plan to buy CBS, consulting with a supplier like NINGBO INNO PHARMCHEM CO.,LTD. ensures they receive a product that meets stringent technical requirements and is accompanied by comprehensive documentation, such as technical data sheets and safety data sheets.

Understanding these technical specifications allows rubber manufacturers to precisely incorporate CBS into their formulations, predict processing behavior, and achieve desired product characteristics. NINGBO INNO PHARMCHEM CO.,LTD. is committed to supplying CBS that consistently meets these high standards, supporting the production of reliable and high-performance rubber goods for applications ranging from tires to industrial components. The availability and competitive price of high-quality CBS from NINGBO INNO PHARMCHEM CO.,LTD. make it an accessible and essential chemical for the industry.