distillation yield
41Rose oil — Rose (Rosa damascena) essential oil in clear glass vial Rose oil, meaning either rose otto (attar of rose, attar of roses) or rose absolute, is the essential oil extracted from the petals of various types of rose. Rose ottos are extracted through …
42science, history of — Introduction the history of science from its beginnings in prehistoric times to the 20th century. On the simplest level, science is knowledge of the world of nature. There are many regularities in nature that mankind has had to… …
43Oil shale in Estonia — Outcrop of Ordovician kukersite oil shale, northern Estonia Oil shale in Estonia is an important resource for the national economy. Estonia s oil shale deposits account for just 17% of total deposits in the European Union but the country… …
44carboxylic acid — Chem. any organic acid containing one or more carboxyl groups. [1900 05; CARBOXYL + IC] * * * Any organic compound with the general chemical formula ―COOH in which a carbon (C) atom is bonded to an oxygen (O) atom by a double bond to make a… …
45Aromatherapy — Intervention A diffuser and a bottle of essential oil. MeSH …
46Coal gas — Towngas redirects here. For the company in Hong Kong trading as Towngas , see The Hong Kong and China Gas Company Limited. See also: Coal gasification and Coal seam gas Coal gas (also town gas and illumination gas) is a flammable gaseous… …
47Pyridine — Pyridine …
48Heat exchanger — An interchangeable plate heat exchanger Tubular heat exchan …
49Nuclear reprocessing — technology was developed to chemically separate and recover fissionable plutonium from irradiated nuclear fuel.[1] Reprocessing serves multiple purposes, whose relative importance has changed over time. Originally reprocessing was used solely to… …
50Applejack (beverage) — Applejack is a strong alcoholic beverage produced from apples, originating from the American colonial period. It is made by concentrating hard cider, either by the traditional method of freeze distillation, or by true evaporative distillation.… …
