Calcium Stearate

[Molecular Formula]                     C₃₆H₇₀CaO₄

 

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 personnal care and pharmaceutical industry include tablet mold release, anti-tack agent and gelling agent.

 

Calcium stearate is virtually nontoxic and there are no rulings on the use/prohibition of this additive. It is important to note that some flour conditioners contain potentially allergenic enzymes, and dust from certain vitamins (e.g. thiamin, a vasodilator) can be harmful. This could potentially affect persons working in an environment that produces baked goods.

 

Calcium stearate is considered a “hidden animal ingredient” by vegetarians and vegans.