distillation yield
31Column still — Legend: A. Analyzer B. Rectifier 1. Wash 2. Steam 3. Liquid out 4. Alcohol vapour 5. Recycled less volatile components 6. Most volatile components 7. Condenser A column still, also called a continuous still, patent still or Coffey still, is a… …
32Muslim Agricultural Revolution — The Islamic Golden Age from the 8th century to the 13th century witnessed a fundamental transformation in agriculture known as the Arab Agricultural Revolution, Medieval Green Revolution, [A. M. Watson (1981), A Medieval Green Revolution: New… …
33Hafnium — lutetium ← hafnium → tantalum Zr ↑ Hf ↓ Rf …
34Oxygen — This article is about the chemical element and its most stable form, O2 or dioxygen. For other forms of this element, see Allotropes of oxygen. For other uses, see Oxygen (disambiguation). nitrogen ← oxygen → fluorine ↑ O ↓ …
35Turpentine — For other uses, see Turpentine (disambiguation). Turpentine (also called spirit of turpentine, oil of turpentine, and wood turpentine) is a fluid obtained by the distillation of resin obtained from trees, mainly pine trees. It is composed of… …
36Biodiesel production — is the act of producing the biofuel, biodiesel, through either transesterification or alcoholysis. The process involves reacting vegetable oils or animal fats catalytically with a short chain aliphatic alcohols (typically methanol or… …
37Onycha — This article is about the incense component. For the town in Alabama, see Onycha, Alabama. Onycha (Greek: ονυξ), along with equal parts of stacte, galbanum, and frankincense, was one of the components of the consecrated Ketoret (incense) which… …
38elastomer — elastomeric /i las teuh mer ik/, adj. /i las teuh meuhr/, n. Chem. an elastic substance occurring naturally, as natural rubber, or produced synthetically, as butyl rubber or neoprene. [1935 40; ELAST(IC) + O + Gk méros a part] * * * ▪ chemical… …
39rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 …
40Purine — chembox ImageFile=Purine chemical structure.png ImageSize= 345px ImageFile2= IUPACName=7H purine OtherNames= Section1= Chembox Identifiers CASNo=120 73 0 PubChem=1044 ChemSpiderID = 1015 SMILES=C1=C2C(=NC=N1)N=CN2 MeSHName=Purine Section2=… …
