Zinc stearate
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Description
Soft, fine, white, waxy powder. Zinc stearate normally occurs as a mixture of the zinc oxide with zinc salts of stearic and palmitic acids. It is used in cosmetic and lacquer as a flatting agent. It is also used as a lubricant on the surface of rubbers and as a release agent on plastic molds. Zinc stearate has also found uses as a waterproofing agent for concrete, rock wool, paper, and textiles.
Synonyms and Related Terms
octadecanoic acid zinc salt
Risks
- Combustible. Flash point = 277C
- ThermoFisher: SDS
Physical and Chemical Properties
Soluble in benzene. Insoluble in water, alcohol, ether.
| Composition | ZnC36H70O4 |
|---|---|
| CAS | 557-05-1 |
| Melting Point | 130 C |
| Density | 1.1 g/ml |
| Molecular Weight | mol. wt. = 632.33 |
Resources and Citations
- The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 9965