- distillation under reduced pressure
- 减压蒸馏
Medical Chinese dictionary (湘雅医学词典). 2013.
distillation under reduced pressure
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vacuum distillation — distillation under reduced pressure to avoid the decomposition which might occur at atmospheric pressure … Medical dictionary
Vacuum distillation — Distillation under reduced pressure (less the atmospheric) which lowers the boiling temperature of the liquid being distilled. This technique with its relatively low temperatures prevents cracking or decomposition of the charge stock. U.S.… … Energy terms
vacuum distillation — 1. A secondary distillation process which uses a partial vacuum to lower the boiling point of residues from primary distillation and extract further blending components. 2. Distillation under reduced pressure, which reduces the boiling… … Petroleum refining glossary
vacuum distillation — noun Distillation under reduced pressure, and thus at a reduced temperature with less risk of thermal degradation … Wiktionary
Distillation — Distiller and Distillery redirect here. For other uses, see Distiller (disambiguation) and Distillery (disambiguation). For other uses, see Distillation (disambiguation). Laboratory display of distillation: 1: A heating device 2: Still pot 3:… … Wikipedia
distillation — distillatory /di stil euh tawr ee, tohr ee/, distillative /di stil euh tiv/, adj. /dis tl ay sheuhn/, n. 1. the volatilization or evaporation and subsequent condensation of a liquid, as when water is boiled in a retort and the steam is condensed… … Universalium
Fractional distillation — is the separation of a mixture into its component parts, or fractions, such as in separating chemical compounds by their boiling point by heating them to a temperature at which several fractions of the compound will evaporate. It is a special… … Wikipedia
vacuum distillation — noun : distillation carried on under reduced pressure so that the liquid being distilled boils at a lower temperature than under atmospheric pressure and consequently with less chance of decomposition compare molecular distillation … Useful english dictionary
Vacuum distillation — At atmospheric pressure, dimethyl sulfoxide boils at 189°C. Under a vacuum, it distills off into the connected receiver at only 70°C. Vacuum distillation is a method of distillation whereby the pressure above the liquid mixture to be distilled is … Wikipedia
vacuum distillation — /vækjum dɪstəˈleɪʃən/ (say vakyoohm distuh layshuhn) noun the process of distillation carried out under a reduced pressure, thus depressing the boiling point of the substance to be distilled and enabling the process to be carried out at a reduced …
Heptanal — Heptanal[1] IUPAC name Heptanal … Wikipedia
