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Stearic Acid

Issuing time:2020-09-04 08:33

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Stearic acid, namely octadecanoic acid, has a simple structure formula of CH3 (CH2) 16cooh. It is produced by hydrolysis of oil and is mainly used to produce stearate. Each gram is dissolved in 21 ml ethanol, 5 ml benzene, 2 ml chloroform or 6 ml carbon tetrachloride.


Purpose


Mainly used in the production of stearate: sodium stearate, magnesium stearate, calcium stearate, lead stearate, aluminum stearate, cadmium stearate, iron stearate, potassium stearate.


It is widely used in cosmetics, plastic cold resistant plasticizer, release agent, stabilizer, surfactant, rubber vulcanization accelerator, waterproof agent, polishing agent, metal soap, metal mineral flotation agent, softener, pharmaceutical products and other organic chemicals.


In addition, it can also be used as solvent of oil soluble pigment, crayon smoothing agent, wax paper Polish agent, stearic acid glycerin emulsifier, etc.


The product is used as lubricant, defoamer and food additive in food industry, such as stearic acid glyceride, stearic acid sorbitol anhydride ester, sucrose ester, etc. It can be used as raw material of additives and daily chemical products.


Stearic acid is widely used in the manufacture of PVC pipes, plates, profiles and films. It is a PVC heat stabilizer with good lubricity and good light and heat stability. In PVC pipes, stearic acid is helpful to prevent "coking" in the process of processing. It is an effective heat stabilizer in PVC film processing, and can prevent the discoloration of finished film caused by exposure to sulfide.


rubber industry


Stearic acid plays an important role in the synthesis and processing of rubber. Stearic acid is a widely used curing active agent in natural rubber, synthetic rubber and latex. It can also be used as plasticizer and softener. Stearic acid is used as emulsifier in the production of synthetic rubber. Stearic acid can be used as foaming agent when making foam rubber, and stearic acid can also be used as a release agent for rubber products.


Cosmetics industry


Stearic acid is used in two kinds of skin care products, such as cream and cold cream, to emulsify and make it a stable and white cream. Stearic acid is also the main raw material for almond honey and milk. Stearic acid soap esters are widely used in cosmetics industry.


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