Zinc Stearate

• Catalog Number: ACM557051-5
• CAS: 557-05-1
• IUPAC Name: Zinc;octadecanoate
• Synonyms: Stearic acid, zinc salt
• Molecular Weight: 632.35
• Molecular Formula: C36H70ZnO4
• Canonical SMILES: CCCCCCCCCCCCCCCCCC(=O)[O-].CCCCCCCCCCCCCCCCCC(=O)[O-].[Zn+2]
• InChI: XOOUIPVCVHRTMJ-UHFFFAOYSA-L
• InChI Key: InChI=1S/2C18H36O2.Zn/c2*1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2*2-17H2,1H3,(H,19,20);/q;;+2/p-2
• Melting Point: 128-130 °C(lit.)
• Flash Point: 180 °C
• Density: 1.095g/ml
• Solubility: Insoluble (NIOSH, 2016);Soluble in benzene; insoluble in water, alcohol and ether;Soluble in acids and common solvents when hot;Solubility in water: none;Insoluble
• Appearance: White powder with fatty acid odour
• Application: It is widely used as a release agent for the production of many kinds of objects rubber, poly urethane, poly ester processing system, powder metallurgy. These applications exploit its "non-stick" properties . In cosmetics, zinc stearate is a lubricant and thickening to improve texture. It is an "activator" for rubber vulcanization by sulfur and accelerators. As discovered in the early days of vulcanization, zinc has a beneficial effect on the reaction of the sulfur with the polyolefin. The stearate is a form of zinc that is highly soluble in the nonpolar medium of the poly olefins. Being lipophilic, it functions as a phase transfer catalyst for the saponification of fats.zinc stearate is used in cosmetic formulations to increase adhesive properties. It is also used as a coloring agent. This is a mixture of the zinc salts of stearic and palmitic acids.Zinc stearate is primarily used in pharmaceutical formulations as a; lubricant in tablet and capsule manufacture at concentrations up to; 1.5% w/w. It has also been used as a thickening and opacifying; agent in cosmetic and pharmaceutical creams, and as a dusting; powder.
• Storage: Zinc stearate is stable and should be stored in a well-closed; container in a cool, dry place.
• Active Content: 95%
• pH: Neutral to moistened litmus paper
• Physical State: Solid
• Typical Applications: Use as lubricant.; Use as emulsifying agent, dispersing agent.