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Dongguan Hanwei Technology Co., Ltd. is a high-tech enterprise integrating R&D, production and sales. Its products are mainly used in petrochemical, rubber and plastics, coatings, papermaking and other fields. The main products are zinc stearate , calcium stearate , magnesium stearate , other fatty acid salts, fatty acid esters, water-based zinc stearate, water-based calcium stearate, wood-plastic lubricants, PE wax, wax emulsion and Various rubber additives, etc.
Characteristics of Calcium Stearate
Calcium stearate possesses specific characteristics that contribute to its functionality and versatility. It is a white, odorless, and fine powder with good dispersibility. It is insoluble in water but soluble in organic solvents. Calcium stearate has a high melting point, providing thermal stability in high-temperature processes. Furthermore, it exhibits excellent lubrication, release, and anti-caking properties. These characteristics make calcium stearate suitable for various applications across different industries.
Process Flow of Calcium Stearate Production
The production process of calcium stearate involves several steps. It typically begins with the neutralization reaction between stearic acid and calcium hydroxide, resulting in the formation of calcium stearate and water. This reaction takes place in a reactor under controlled conditions of temperature and agitation. The resulting mixture is then subjected to filtration or centrifugation to separate the solid calcium stearate from the liquid phase. The obtained calcium stearate is then washed and dried to remove impurities and residual water. After drying, the product is typically pulverized or granulated to achieve the desired particle size and flow properties.
Importance of Calcium Stearate
Calcium stearate holds significant importance in the manufacturing and processing of various materials and products. Its lubricating and release properties improve production efficiency, enhance product quality, and reduce operational costs. The stabilizing function of calcium stearate ensures the long-term performance and durability of materials, particularly in high-temperature applications. Additionally, its anti-caking properties enable accurate dosing and improve the shelf life of powdered substances. Overall, calcium stearate plays a crucial role in optimizing the performance, functionality, and appearance of a wide range of products.
Benefits of Calcium Stearate
Calcium stearate offers several benefits across various industries. Firstly, it acts as an effective lubricant and release agent, improving the flow properties of materials and preventing them from sticking to processing equipment. This enhances the production efficiency and quality of various products. Secondly, calcium stearate functions as an anti-caking agent, preventing the clumping of powdered substances, ensuring consistent flow, and facilitating accurate dosing. Additionally, it acts as a stabilizer, improving the heat resistance and aging properties of materials. Moreover, calcium stearate provides excellent hydrophobicity, making it useful in moisture-sensitive applications.
Frequently Asked Question
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Calcium stearate is considered safe for use in food products and is approved by regulatory authorities such as the U.S. Food and Drug Administration (FDA) as a food additive. It is commonly used as an anticaking agent, emulsifier, and stabilizer in various food applications.
Yes, calcium stearate is widely used in the pharmaceutical industry. It is commonly employed as a lubricant and flow agent in tablet and capsule formulations. Calcium stearate helps improve the flowability of powders, aids in tablet compression, and prevents sticking during manufacturing processes. It is generally recognized as safe for pharmaceutical use when used within recommended limits.
Calcium stearate is commonly used as a processing aid in plastics manufacturing. It acts as a lubricant and internal/external release agent, helping to reduce friction and improve the flow properties of plastic materials during processing. It facilitates mold release, reduces sticking, and enhances the surface finish of molded plastic products.
Calcium stearate itself is not considered harmful to the environment. It is biodegradable and does not persist in the environment.