stearin

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stearin

(stēr`ĭn), fat that is the triglyceridetriglyceride,
ester formed from glycerol and one to three fatty acids. Fats and oils are triglycerides. In a simple triglyceride such as palmitin or stearin, all three fatty-acid groups are identical.
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 of stearic acid, CH3(CH2)16CO2H, i.e., the tristearate ester of glycerol. It is a white crystalline solid at ordinary temperatures and is insoluble in water and very slightly soluble in alcohol. It is found (often mixed with palmitinpalmitin
, fat that is the triglyceride of palmitic acid, CH3(CH2)14CO2H, i.e., the tripalmitate ester of glycerol. It is a white crystalline solid at ordinary temperatures, insoluble in water but soluble in ethanol and ether.
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) in many hard fats and oils, e.g., in tallow, suet, butterfat, cottonseed oil, and olive oil. It is used in making soap and candles.

Stearin

 

technical-grade stearic acid; a mixture of the higher fatty carboxylic acids, mainly stearic and palmitic acids. Stearin is a semitransparent white or yellowish substance that is greasy to the touch. Depending on the source, it has a melting point between 53° and 65°C; its density is 0.92 g/cm3 (20°C). It is obtained by the distillation of hydrolysates of animal fats with subsequent crystallization and pressing or by the hydrogenation of unsatu- rated acids from vegetable oils. Stearin is used in the production of candles, usually in a mixture with paraffin.

stearin

[′stir·ən]
(organic chemistry)
C3H5(C18H35O2)3 A colorless combustible powder; insoluble in water, soluble in alcohol, chloroform, and carbon disulfide; melts at 72°C; used in metal polishes, pastes, candies, candles, and soap, and to waterproof paper. Also known as glyceryl tristearate; tristearin.
References in periodicals archive ?
Oleochemicals could also be categorized into two types namely non edible such as stearine, fatty acid, oleic acid, lauric acid, myristic acid, palmitic acid, glycerin, fatty alcohol, capric acid, soap, environmentally friendly detergent and stearine candle.
The company which plans to operate in refining of palm oil and derivatives such as soap, margarine with an annual capacity to produce 45,000 tons of soap, 4,400 tons of glycerine, 216,000 tons of RDB olein and 6,000 tons of RDB stearine. The project is to be built in Bekasi and will provide jobs for 267 Indonesian workers.
Jakarta - 67,500 tons Palm fatty acid distillate - 5,500 tons RBD stearine - 18,500 tons a.
Two words form interweaves in five ways, PLAINNESS (planes + ins, pans + lines, pins + lanes, panes + lis, panes + lins) and STEARINES (series + tan, stains + ere, sere + tains, serins + tae, sains + tere (in Webster's Second)).