Glycerol 1,2,3-propanetriol

Animal fats and vegetable oils are triacylglycerols, or triesters, formed from the reaction of glycerol (1,2, 3-propanetriol) with three long-chain fatty acids. One of the methods used to characterize a fat or an oil is a determination of its saponification number. When treated with boiling aqueous KOH, an ester is saponified into the parent alcohol and fatty acids (as carboxylate ions). The saponification number is the number of milligrams of KOH required to saponify 1.000 g of the fat or oil. In a typical analysis, a 2.085-g sample of butter is added to 25.00 ml of 0.5131 M KOH. After saponification is complete, the excess KOH is back titrated with 10.26 ml of0.5000 M HCl. What is the saponification number for this sample of butter ... 

ChemicalDesignations-. nt tO" Glycerol 1,2,3-Propanetriol 1,2,3-Trihydroxypropane Chemical Formula-. HOCH2CH(OH)CHjOH. 

Triacylglycerol (Section 26.2) A derivative of glycerol (1,2,3-propanetriol) in which the three oxygens bear acyl groups derived from fatty acids. 

Problem 23,1 I One of the steps in fat metabolism is the reaction of glycerol (1,2,3-propanetriol) with ATP to yield glycerol 1-phosphate. Write the reaction, and draw the structure of glycerol 1-phosphate. 

Fats, as well as animal and plant oils, are esters. Actually they are triple esters of glycerol (1,2,3-propanetriol) ... 

How do olive oils vary in acid content Oils are a complex mixture of compounds known as triglycerides. Triglycerides are esters formed from the alcohol glycerol (1,2,3-propanetriol, C3H8O3, Fig. 13.16.1) and three carboxylic acids... 

Glycerol is a colorless, odorless, viscous (syrupy), nontoxic and hygroscopic liquid with a very sweet taste its etymologic roots stem from the Greek glykys, sweet. Pure glycerol (1,2,3-propanetriol) is a trihydric alcohol with a specific gravity of 265 at 15 °C. Below 0 °C it solidifies to a white crystalline mass, which melts at... 

Nitroglycerin (correctly termed glyceryl trinitrate) is the most successful analogue of organic nitrates (Fig. 10.2). The compound is a triester formed by the nitration of glycerol (1,2,3-propanetriol), and was discovered by Sobrero in 1847 [14]. In pure form, nitroglycerin is an explosive, as was discovered by Alfred Nobel, but when combined with an inert carrier (such as lactose) it is stable enough to be... 

Glycerol (= 1,2,3-Propanetriol) (triose sugar alcohol) Universal in glycerol-based fats phospholipids Croton tiglium (Euphorbiaceae), Urtica dioica (Urticaceae) Sweet... 

PROBLEM 15.10 Alfred Nobel s fortune was based on his 1866 discovery that nitroglycerin, which is far too shock-sensitive to be transported or used safely, can be stabilized by adsorption onto a substance called kieselguhr to give what is familiar to us as dynamite. Nitroglycerin is the trinitrate of glycerol (1,2,3-propanetriol). Write a structural formula or construct a molecular model of nitroglycerin. 

Methanol is a toxic alcohol that is used as a solvent. Ethanol is the alcohol consumed in beer, wine, and distilled liquors. Isopropanol is used as a disinfectant. Ethylene glycol (1,2-ethanediol) is used as antifreeze, and glycerol (1,2,3-propanetriol) is used in cosmetics and pharmaceuticals. 

Triglycerides are the major lipid storage form in the human body. They are formed in an esterification reaction between glycerol (1,2,3-propanetriol) and three fatty acids Gong chain carboxylic acids). Write a balanced equation for the formation of a triglyceride formed in a reaction between glycerol and three molecules of decanoic acid. 

ChemicalDesignations-. Tiof nu Glycerol 1,2,3-Propanetriol l,2,3-Trihydro Q propane Chemical Formula H0CHjCH(0H)CH20H. 

SYNONYMS blasting oil, glyceryl trinitrate, ng, nitric acid triester of glycerol, 1,2,3-propanetriol trinitrate, trinitroglyeerin. 

Glycerol (1,2,3-propanetriol), also known as glycerine, is a syrupy, sweet-tasting liquid used in the manufacture of polymers and explosives, as an emollient in cosmetics, as a humectant in tobacco, and as a sweetener. 

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