Pharmaceutical Chemicals
Description
Stearic Acid CAS 57-11-4
Product Name: Stearic acid;
Synonyms: CETYLACETIC ACID;FEMA 3035;CARBOXYLIC ACID C18;C18;C18:0 FATTY ACID;ACIDUM STEARICUM 50;N-OCTADECYLIC ACID;N-OCTADECANOIC ACID;
CAS: 57-11-4;
MF: C18H36O2;
MW: 284.48;
EINECS: 266-928-5;
Product Categories: Miscellaneous Natural Products;Alkylcarboxylic Acids;Biochemistry;Higher Fatty Acids & Higher Alcohols;Monofunctional & alpha,omega-Bifunctional Alkanes;Monofunctional Alkanes;Saturated Higher Fatty Acids;Chemical intermediate;plasticizer, stabilizer and lubricant;Food additives;
Melting point： 67-72 °C(lit.);
Boiling point: 361 °C(lit.);
density: 0.84;
vapor pressure: 1 mm Hg ( 173.7 °C);
Fp: >230 °F;
storage temp.: 2-8°C;
HS Code : 38231100;
Description:
Stearic acid is one of several major long-chain fatty acids comprising oils and fats. It is presented in animal fats, oil and some kinds of vegetable oils as wellin the form of glycerides. These oils, after hydrolysis, produce the stearic acid.
Stearic acid is a fatty acid widely existing in nature and has the general chemical properties of carboxylic acids. Almost all kinds of fat and oil contain certain amount of stearic acid with the content in the animal fats being relative high. For example, the content in the butter can reach up to 24% while the content in vegetable oil is relative low with the value in tea oil being 0.8% and the oil in palm being 6%. However, the content in cocoa can reach as high as 34%.
Stearic acid is mainly used for the production of stearates such as sodium stearate, magnesium stearate, calcium stearate, lead stearate, aluminum stearate, cadmium stearate, iron stearate, and potassium stearate.
Usage:
In general, the applications of stearic acid exploit its bifunctional character, with a polar head group that can be attached to metal cations and a nonpolar chain that confers solubility in organic solvents.
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