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This Wikipedia page provides a comprehensive list of boiling and freezing points for various solvents.
Stearic acid (/ ˈ s t ɪər ɪ k / STEER-ik, / s t i ˈ ær ɪ k / stee-ARR-ik) is a saturated fatty acid with an 18-carbon chain. [9] The IUPAC name is octadecanoic acid. [9] It is a soft waxy solid with the formula CH 3 (CH 2) 16 CO 2 H. [9] The triglyceride derived from three molecules of stearic acid is called stearin. [9]
The fatty acid composition of marula oil includes: [2] Monounsaturated fatty acids: Oleic acid (70–78%) Polyunsaturated fatty acids: Linoleic acid (4.0–7.0%) Alpha-linolenic acid (0.1–0.7%) Arachidonic acid (0.3–0.7%) Saturated fatty acids: Palmitic acid (9–12%) Stearic acid (5.0–8.0%)
In this context, soap is used in its formal sense, a metal salt of a fatty acid: in this case stearic acid. It is a white solid that repels water. It is a white solid that repels water. It is insoluble in polar solvents such as alcohol and ether but soluble in aromatic hydrocarbons (e.g., benzene ) and chlorinated hydrocarbons when heated.
Strontium stearate is a metal-organic compound, a salt of strontium and stearic acid with the chemical formula C 36 H 70 SrO 4. [3] The compound is classified as a metallic soap, i.e. a metal derivative of a fatty acid. [4]
Stearin is obtained from animal fats created as a byproduct of processing beef.It can also be found in tropical plants such as palm. It can be partially purified by dry fractionation by pressing tallow or other fatty mixtures, leading to separation of the higher melting stearin-rich material from the liquid, which is typically enriched in fats derived from oleic acid.
The idealized equation for the formation of sodium stearate from stearin (the triglyceride of stearic acid) follows: (C 18 H 35 O 2) 3 C 3 H 5 + 3 NaOH → C 3 H 5 (OH) 3 + 3 C 18 H 35 O 2 Na. Purified sodium stearate can be made by neutralizing stearic acid with sodium hydroxide. C 17 H 35 COOH+NaOH→C 17 H 35 COONa+H 2 O
Stearyl heptanoate, the ester of stearyl alcohol and heptanoic acid (enanthic acid), is found in most cosmetic eyeliners. Stearyl alcohol has also found application as an evaporation suppressing monolayer when applied to the surface of water. [2] Stearyl alcohol is prepared from stearic acid or certain fats by the process of catalytic ...