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    Esters are formed by removal of water from an acid and an alcohol, e.g., carboxylic acid esters, phosphoric acid esters, and sulfonic acid esters. Carboxylic acid esters are used as in a variety of direct and indirect applications.

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    It is the starting material for making +ricinenic acid, esters, +sebacic acid, -+undecylenic acid, nylon 11 (+polyamides) and jhydroxy stearic acid. Dehydration at 240-260 "C under reduced pressure in the presence of 0.1-0.2% sulfuric acid as catalyst yields a +drying oil called dehydrated c. [64147-40-61, which contains 40% conjugated and 60 .

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    After the ester has been formed, unreacted acid is neutralised using sodium carbonate or calcium hydroxide and removed by filtration. 56 M. Brown et al. Polyol esters are made by reacting a polyhydric alcohol, such as neopentyl glycol (NPG), trimethylol propane (TMP) or pentaerythritol (PE), with a monobasic acid to give the desired ester.

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    After the ester has been formed, unreacted acid is neutralised using sodium carbonate or calcium hydroxide and removed by filtration. 56 M. Brown et al. Polyol esters are made by reacting a polyhydric alcohol, such as neopentyl glycol (NPG), trimethylol propane (TMP) or pentaerythritol (PE), with a monobasic acid to give the desired ester.

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    Publisher Summary. Insoluble in water, soluble in acids. Mp 1565OC; If the mating metal surfaces form several oxide compounds, then these a r e arranged so that the compound that is the richest in oxygen is a t the solid-gas interface while the compound that is poorest in oxygen is at the metal-oxide interface.

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