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extracts from hexane and other hydrophobic solvent are called concretes, which are a mixture of essential oil, waxes, resins, and other lipophilic (oil soluble) plant material. although highly fragrant, concretes contain large quantities of non-fragrant waxes and resins. often, another solvent, such as ethyl
alcohol , which is more polar in nature, is used to extract the fragrant oil from the concrete. the alcohol is removed by evaporation, leaving behind the absolute. supercritical carbon dioxide is used as a solvent in supercritical fluid extraction. this method has many benefits including avoiding petrochemical...
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-piperidinecarboxylicacid, -(methylamino)-, ethyl ester - - c h n o . h-imidazole, -iodo- -methyl- - - c h in . -( -methoxybenzoyl) -( -naphthoyl)-hydrazine - - c h n o - - . . h- , -triazole- -dicarboxylicacid, -(phenylmethyl)- - - c h n o . h-tetrazole, -( -chlorobutyl) -cyclohexyl- - - c h cln ....
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-oxazolecarboxylicacid, -ethyl- -methyl- - - c h n o . h-cyclopenta[b]pyridine- -methanamine, , -dihydro- - - c h n . , , , -eicosapentaenoicacid, -hydroxy-, ( z, z, e, s, z, z)- - - c h o .
-thiazolecarboxylicacid, -ethyl- -methyl- - - c h n o s . ( h)-isoquinolinone, -amino- -dihydro- - - c h n o . h-imidazo[ -g]isoquinolin- -one, , -dihydro- -dimethyl- -( -pyridinyl)- - - c h n o ....
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