Stearic Acid(Pharmaceutical Excipients) CAS 57-11-4

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Stearic Acid Usage and Synthesis:

Stearic acid, legal number INS (internationalnumbersystem) 570, EEC No. 570, CAS [57-11-4], is a white or yellowish-white solid, soluble in alcohol and acetone, easily soluble in ether, chloroform, benzene, carbon tetrachloride, carbon disulfide, amyl acetate and toluene, etc., with a melting point of 69.6°C. It is one of the main components of oils and fats. One of the main components of fats and oils. Fatty acid stearic acid is one of several major long-chain fatty acids that make up fats and oils, and exists in the form of glycerides in animal fats, oils and some vegetable oils, which are hydrolyzed to obtain stearic acid. Stearic acid is a fatty acid that exists widely in nature and has the chemical properties of a general carboxylic acid. Almost all fats and oils have varying amounts of stearic acid, with higher content in animal fats, such as butter, which can reach 24%, and less in vegetable oils, such as tea oil at 0.8% and palm oil at 6%, but the content in cocoa butter is as high as 34%.

Pharmacokinetics of Stearic Acid:

Pharmaceutical Excipients Stearic Acid CAS 57-11-4 Raw Materials is a white or yellowish-white solid.Stearic Acid Raw Materials is a naturally occurring fatty acid that is widely used in cosmetics, plastic plasticizers, mold release agents, stabilizers Stearic Acid is widely used in cosmetics, plastic plasticizers, mold release agents, stabilizers, surfactants, rubber vulcanization accelerators, water repellents, polishing agents, metal soaps, metal mineral flotation agents, softeners, Stearic Acid Pharmaceutical Excipients and other organic chemicals.

Clinical Application of Stearic Acid:

Industrial stearic acid is produced by two main methods: fractional distillation and pressing. Crude fatty acids are obtained by adding decomposition agents to the hardened oil and then hydrolyzed, followed by washing, distillation and decolorization to produce the finished product. The by-product is glycerol. Stearic acid is mostly produced from vegetable oil and the production process is more advanced. Stearic acid has stable performance, good lubricity and less odor in application. Stearic acid is mainly used to produce stearic acid salts, such as sodium stearate, magnesium stearate, calcium stearate, lead stearate, aluminum stearate, cadmium stearate, iron stearate, potassium stearate, etc. The sodium or potassium salt of stearic acid is a component of soap. The sodium salt of stearic acid has less detergency than sodium soft stearate, but its presence increases the hardness of the soap.

Stearic acid has become a functional additive for lubrication, plasticization and stabilization of filled modified masterbatch. Stearic acid can effectively improve the inorganic powder coating activation effect and increase the fluidity of the material. For the inorganic powder accounts for the absolute number of materials requiring a large melt flow rate, the appropriate increase in the content of stearic acid can significantly increase the melt flow rate of the material. However, the amount of stearic acid in the filler masterbatch also has a limit value, generally controlled at about 1% of the total mass. Adding too much will cause the quality performance of plastic products to decline, and also make the plastic products production equipment such as the location of the mold lip mechanical devices appear sticky paste, affecting production efficiency and product quality.

It is used as the vulcanizing active agent of natural rubber, synthetic rubber (except butyl rubber) and latex, and also used as the raw material of plastic plasticizer and stabilizer. In medicine, it is used to prepare ointment, suppository, etc. It is also used in the manufacture of cosmetics, candles, water repellent, polish, etc. In food industry, it is used as lubricant, defoamer and raw material of food additive glycerol stearate, sorbitan stearate, sucrose ester, etc.

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