Calcium Stearate

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Calcium stearate is produced by heating stearic acid, a fatty acid, and calcium oxide. Calcium stearate is used as a flow agent in powders including some foods, a surface conditioner in hard candies such as Sprees, a waterproofing agent for fabrics, a lubricant in pencils and crayons.

The concrete industry uses calcium stearate for efflorescence control i.e. paver and block, as well as waterproofing.In paper production, calcium stearate is used as a lubricant to provide good gloss, preventing dusting and fold cracking in paper and paperboard making.In plastics, it can act as an acid scavenger or neutralizer at concentrations up to 1000ppm, a lubricant and a release agent. It may be used in plastic colorant concentrates to improve pigment wetting. In rigid PVC, it can accelerate fusion, improve flow, and reduce die swell.

Applications in the personal care and pharmaceutical industry include tablet mold release, anti-tack agent, and gelling agent.

 

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