chemical composition of precipitation

降水化学成分

Atmospheric Sciences (English-Chinese) dictionary. 2014.

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  • chemical element — Introduction also called  element,         any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed.       This article considers the… …   Universalium

  • Chemical equilibrium — In a chemical reaction, chemical equilibrium is the state in which the concentrations of the reactants and products have not yet changed with time. It occurs only in reversible reactions, and not in irreversible reactions. Usually, this state… …   Wikipedia

  • chemical reaction — Any chemical process in which substances are changed into different ones, with different properties, as distinct from changing position or form (phase). Chemical reactions involve the rupture or rearrangement of the bonds holding atoms together… …   Universalium

  • chemical precipitation —       formation of a separable solid substance from a solution, either by converting the substance into an insoluble form or by changing the composition of the solvent to diminish the solubility of the substance in it. The distinction between… …   Universalium

  • Chemical plant — BASF Chemical Plant Portsmouth Site in the West Norfolk area of Portsmouth, Virginia, United States. The plant is served by the Commonwealth Railway …   Wikipedia

  • chemical change — noun (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved • Syn: ↑chemical process, ↑chemical action • Topics: ↑chemistry, ↑chemical science • Hypernyms: ↑ …   Useful english dictionary

  • chemical action — noun (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved • Syn: ↑chemical process, ↑chemical change • Topics: ↑chemistry, ↑chemical science • Hypernyms: ↑ …   Useful english dictionary

  • chemical process — noun (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved • Syn: ↑chemical change, ↑chemical action • Topics: ↑chemistry, ↑chemical science • Hypernyms: ↑ …   Useful english dictionary

  • Protein precipitation — Precipitation is widely used in downstream processing of biological products, such as proteins. [http://www.rcsb.org/pdb/home/home.do] This unit operation serves to concentrate and fractionate the target product from various contaminants. For… …   Wikipedia

  • Terms designating composition and physical characteristics — ▪ Table Terms designating composition and physical characteristics Detrital rocks Rudites (coarse) conglomerates (rounded clasts) breccias (angular clasts)   basal, or transgression   fanglomerates (in alluvial fans)   tillites (glacially… …   Universalium

  • hydrosphere — /huy dreuh sfear /, n. the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere. [1885 90; HYDRO 1 + SPHERE] * * * Discontinuous layer of water at or near the Earth s surface. It… …   Universalium

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