stearin

Definitions

  • WordNet 3.6
    • n stearin an ester of glycerol and stearic acid
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Webster's Revised Unabridged Dictionary
    • n Stearin stē"ȧ*rĭn (Physiol. Chem) One of the constituents of animal fats and also of some vegetable fats, as the butter of cacao. It is especially characterized by its solidity, so that when present in considerable quantity it materially increases the hardness, or raises the melting point, of the fat, as in mutton tallow. Chemically, it is a compound of glyceryl with three molecules of stearic acid, and hence is technically called tristearin, or glyceryl tristearate.
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Century Dictionary and Cyclopedia
    • n stearin An ether or glyceride, C3H5O3(C18H35O2)3, formed by the combination of stearic acid and glycerin. When crystallized it forms white pearly scales, soft to the touch but not greasy, and odorless and tasteless when pure. It is insoluble in water, but soluble in hot alcohol and ether. When treated with superheated steam it is separated into stearic acid and glycerin, and when boiled with alkalis is saponified—that is, the stearic acid combines with the alkali, forming soap, and glycerin is separated. When melted it resembles wax. There are three stearins, which may all be regarded as derivatives of glycerin in which one, two, or three OH groups are replaced by the radical stearyl. Natural stearin is the tristearyl derivative of glycerin. It is the chief ingredient in suet, tallow, and the harder fats, and may be prepared by repeated solution in ether and crystallization. Candle-pitch, chandlers' gum, or residuary gum, used in the manufacture of roofing-cements, is a by-product of this manufacture.
    • n stearin A popular name for stearic acid as used in making candles.
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Etymology

Webster's Revised Unabridged Dictionary
Gr. ste`ar tallow, suet: cf. F. stéarine,

Usage

In literature:

He insists that Father MACKONOCHIE must use Stearine or Spermaceti.
"Punchinello, Vol. 1, No. 7, May 14, 1870" by Various
The stearine and soap are cut into slices, mixed with the cold lye, and boiled for about half an hour, being constantly stirred.
"Enquire Within Upon Everything" by Anonymous
He used stearine candles, too; not the common paraffin variety.
"The Mystery of 31 New Inn" by R. Austin Freeman
Eaton, Mrs. Dr. Clark, Mrs. J.J. Stearin, Roxana Hamilton, and Miss Whitcomb.
"Thirty Years in the Itinerancy" by Wesson Gage Miller
No stearine, animal or vegetable, is added.
"The Story of Crisco" by Marion Harris Neil
Stearine and tallow manufactured in candles.
"A Compilation of the Messages and Papers of the Presidents, Volume IX." by Benjamin Harrison
These oils contain a large amount of stearine, and are used as substitutes for fat.
"The Commercial Products of the Vegetable Kingdom" by P. L. Simmonds
Alcohol, stearine, and broken wood from a whaleboat and barrels, were all employed.
"American Merchant Ships and Sailors" by Willis J. Abbot
It produces oil, and is used in the manufacture of stearine candles.
"Miscellanea" by Juliana Horatia Ewing
The white, crystalline solid that separates out is largely stearin.
"Creative Chemistry" by Edwin E. Slosson
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In news:

In India, soap noodles are made from palm fatty acid distillate and palm stearin and ICIS assess soap noodles from both feedstocks.
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