15 Facts About Stearic acid


Stearic acid is a saturated fatty acid with an 18-carbon chain.

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Stearic acid is more abundant in animal fat than in vegetable fat .

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In terms of its biosynthesis, stearic acid is produced from carbohydrates via the fatty acid synthesis machinery wherein acetyl-CoA contributes two-carbon building blocks.

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Stearic acid is obtained from fats and oils by the saponification of the triglycerides using hot water .

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Commercial stearic acid is often a mixture of stearic and palmitic acids, although purified stearic acid is available.

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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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Stearic acid undergoes the typical reactions of saturated carboxylic acids, a notable one being reduction to stearyl alcohol, and esterification with a range of alcohols.

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Stearic acid is mainly used in the production of detergents, soaps, and cosmetics such as shampoos and shaving cream products.

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Stearic acid is used along with castor oil for preparing softeners in textile sizing.

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Stearic acid is a common lubricant during injection molding and pressing of ceramic powders.

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Stearic acid is used as a negative plate additive in the manufacture of lead-acid batteries.

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Stearic acid is used along with simple sugar or corn syrup as a hardener in candies.

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In fireworks, stearic acid is often used to coat metal powders such as aluminium and iron.

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Also, stearic acid is less likely to be incorporated into cholesterol esters.

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In epidemiologic and clinical studies, stearic acid was found to be associated with lowered LDL cholesterol in comparison with other saturated fatty acids.

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