Calcium Stearate, identified by its CAS number 1592-23-0, is a crucial organic compound widely recognized as a white, free-flowing powder. This material possesses a unique set of physical and chemical properties that make it indispensable across numerous industrial applications. Chemically, it is the calcium salt of stearic acid, with the molecular formula [CH3(CH2)16coo]2ca. Its primary characteristics include its insolubility in water and a relatively high melting point, typically around 150°C, though this can vary slightly depending on the grade.

One of the most prominent applications of Calcium Stearate is its use as a highly effective waterproofing agent. It is particularly valued in construction materials, such as in the production of floor tiles. When incorporated into these materials, Calcium Stearate forms a hydrophobic barrier that significantly reduces water absorption, thereby enhancing durability and preventing issues related to moisture ingress. This property is essential for extending the lifespan of building components and maintaining their structural integrity in damp environments.

Beyond its waterproofing capabilities, Calcium Stearate serves as a vital additive in the plastics industry, especially with PVC (polyvinyl chloride). Its role here is multifaceted. It functions effectively as a stabilizer, helping to process PVC at higher temperatures by inhibiting degradation caused by heat and light. This stabilization is critical for producing high-quality PVC products with good color retention and mechanical properties. Furthermore, Calcium Stearate acts as an internal lubricant during PVC processing, reducing friction between polymer chains and facilitating smoother melt flow. This improves processing efficiency and allows for the manufacture of complex shapes and thin-walled items. For specific applications like PVC soft packing boxes intended for food contact, or materials used in hoses, films, and sheets, Calcium Stearate is preferred due to its non-toxic nature, making it a safe choice where human contact or environmental considerations are paramount.

The utility of Calcium Stearate extends to other areas as well. In cosmetics, it is used as a binder, thickener, or anti-caking agent, contributing to the texture and stability of various products. In the rubber industry, it can act as a mold release agent and processing aid. Its properties as a flow agent are also beneficial in powder metallurgy and ceramics, ensuring uniform density and smooth processing. When used in conjunction with other metal stabilizers, particularly in PVC compounds, Calcium Stearate contributes to synergistic effects that enhance overall performance and cost-effectiveness. The versatility of this white powder is a testament to its balanced chemical properties, offering solutions across a wide spectrum of material science and manufacturing processes.

Manufacturing and handling of Calcium Stearate require adherence to standard industrial practices. It is typically packaged in durable bags, commonly 20kg each, and transported in standard shipping containers, with typical loads reaching 18-20 metric tons per 20-foot container. Proper storage is crucial to maintain its quality; it should be stored in a dry, well-ventilated environment, away from moisture and excessive heat. Room temperature, generally between 15°C and 30°C, is ideal. Opened packages must be kept sealed to prevent contamination and moisture absorption. Transportation should avoid extreme temperatures, humidity, and violent shocks to ensure the product arrives in optimal condition.

The demand for high-purity Calcium Stearate continues to grow, driven by its essential roles in key industries. Sourcing from a reliable manufacturer is paramount to ensuring consistent quality and performance. Many industries rely on Calcium Stearate powder for their formulations, benefiting from its properties as a lubricant, stabilizer, and water repellent. When considering the purchase of this versatile chemical, understanding its technical specifications, such as bulk density, moisture content, calcium content, and melting point, is important to select the appropriate grade for specific applications. Reliable suppliers can provide detailed technical data sheets and support to help customers make informed decisions. The price of Calcium Stearate can vary based on factors such as purity, quantity purchased, and market conditions. For businesses looking to buy or purchase Calcium Stearate, establishing a relationship with a reputable supplier ensures access to quality product and reliable delivery logistics. Manufacturers capable of producing large volumes, such as 10,000 metric tons per year, are equipped to meet significant industrial demand. Seeking quotes and comparing options from different suppliers is a common practice when determining the best source and price for Calcium Stearate powder.