Calcium stearate
Calcium stearate is a non-toxic stabilizer and lubricant with the molecular formula Ca(C18H35O2)2. It is an insoluble calcium salt of stearic acid. Commercially it is sold as a 50% dispersion in water or as a spray dried powder. As a food additive it is known by the E number E572.
Applications include as a flow agent in powders including some foods (such as Smarties), 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 of cementious products used in the production of concrete masonry units i.e. paver and block, as well as waterproofing.
In the paper industry, 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, 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.
Translation of "Calcium stearate"
German: Calciumstearat, Italian: Stearato di calcio, Hungarian: Kalcium-sztearát, Polish: Towot.
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