Magnesium stearate is a neutral magnesium soap with special hydrophobic specification. Its is a compound of magnesium with variable proportions of stearic and palmitic acids. It can act as a hydrophobic agent in fire-fighting and wax and grease industries. It can be used as anti-static agent in textile and dry-cleaning industries and as lubricant in graphic pen production.
Detailed applications including:
In petroleum industry , Magnesium Stearate is used as a gelling agent in the manufacture of superior quality greases . It is also used as a lubricant modifier and oxidation catalyst in treating oil wells .
In coating industry , it is used as a flatting , thickening and suspending agent in paints , varnishes , lacquers and as a hardner in enamels and varnishes .
In preparation of inks , use of these material increases the pigment dispersion , retards or prevents the settling , increases viscosity and shortens the oil length of the pigment .
In rubbers , Magnesium Stearate serves as a softener , vulcanization accelerator, mould release agent antiscorching agent . It reduces tackiness in the uncured rubbers . In resinized rubbers , it acts as an oxidation and hardening agent .
In PVC, it is used as an important heat stabilizer in conjunction with Barium , Cadmium , Calcium , Lead and Tin Stearates . In some cases, it can also be used as a plasticizer and internal lubricant in improving the processing characteristics of the plastics .
In the manufacture of face and body powders , this chemical is used as a base because of its fine particle size , smoothness , property of adherence to body skin and water repellency .
In candles , it is used as a hardening agent .
CAS No.: 557-04-0
Chemical Formula: Mg (C17H35COO)2
Molecular Weight: 591.24
Synonym: Octadecanoic Acid Magnesium Salt