Powdered Calcium Stearate: Advantages and Applications in Different Industries

Powdered Calcium Stearate: Advantages and Applications in Different Industries

The manufacturing of candles often involves the use of calcium stearate as a wax hardener and binder. It increases the melting point of the wax, making the candles more durable and less likely to deform during burning. Additionally, it helps to bind the wax and fragrance oils together, enhancing the scent throw of the candles.

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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.

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Ingredients of Calcium Stearate

Calcium stearate is primarily composed of stearic acid and calcium hydroxide. Stearic acid, a long-chain fatty acid, acts as the main raw material for calcium stearate production. It is obtained from vegetable or animal sources or can be synthesized through chemical processes. Calcium hydroxide, also known as slaked lime or hydrated lime, serves as the source of calcium ions required for the formation of calcium stearate. These ingredients undergo a reaction to produce calcium stearate, which is then processed and prepared for various applications.

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.

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.

Applications of Calcium Stearate

Calcium stearate finds extensive applications across various industries. In the plastic industry, it is used as a lubricant and mold release agent in the production of PVC pipes, cables, and profiles. In the rubber industry, it is employed as an effective processing aid and mold release agent for rubber compounds. Furthermore, calcium stearate is used as a stabilizer in the production of polyolefins and as an anti-caking agent in powdered food and pharmaceutical products. It also finds applications in coatings, paints, cosmetics, and personal care products.

Frequently Asked Question

Do you have any question?

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. 

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