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acid esters CHIM

cellulose esters CHIM

ester <an ester; esters> SOST

ester number CHIM

Esempi monolingue (non verificati dalla Redazione di PONS)

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Historically, many pharmacopoeias have referred to lanolin as wool fat ("adeps lanae"); however, as lanolin lacks glycerides (glycerol esters), it is not a true fat.
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Esters may also be prepared by reaction of the alcohol with an acid chloride in the presence of a base such as pyridine.
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They are the esters of nitric acid and alcohols.
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Finally, they produce a stomach oil made up of wax esters and triglycerides that is stored in the proventriculus.
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As with many volatile esters, ethyl benzoate has a pleasant odor described as sweet, wintergreen, fruity, medicinal, cherry, and grape.
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It is also used to saponify fats and oils, in industrial cleaners, and in hydrolysis reactions, for example of esters.
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It can efficiently remove traces or excess amounts of chlorine, bromine, iodine, hypochlorite salts, osmate esters, chromium trioxide and potassium permanganate.
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Esters, nitriles and other carbonyl derivatives also undergo conjugative hydrocyanation.
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New products obtained using complex purification techniques produce lanolin esters in their natural state, removing oxidative and environmental impurities resulting in white, odourless, hypoallergenic lanolin.
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They do not react with esters, nitriles, or amides.
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