Calcium stearate

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What Wikipedia says

Calcium stearate is a carboxylate salt of calcium, classified as a calcium soap. The salt is a component of some lubricants, surfactants, as well as many foodstuffs. It is a white waxy powder.

Excerpt from the Wikipedia article “Calcium stearate”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Jü, Public domain, via Wikimedia Commons.