precursor reaction

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• Reaction Engines Limited — Type Private Industry Aerospace Founded 1989 …   Wikipedia

• Precursor — or Precursors may refer to:*Precursor (bird), a hypothesized genus of fossil birds that was actually composed of fossilized parts of unrelated animals *Precursor (chemistry), a compound that participates in the chemical reaction that produces… …   Wikipedia

• Precursor (chemistry) — In chemistry, a precursor is a compound that participates in the chemical reaction that produces another compound. In biochemistry, the term precursor is used more specifically to refer to a chemical compound preceding another in a metabolic… …   Wikipedia

• precursor — /pri kerr seuhr, pree kerr /, n. 1. a person or thing that precedes, as in a job, a method, etc.; predecessor. 2. a person, animal, or thing that goes before and indicates the approach of someone or something else; harbinger: The first robin is a …   Universalium

• precursor — pre•cur•sor [[t]prɪˈkɜr sər, ˈpri kɜr [/t]] n. 1) a person or thing that precedes, as in a job or a method; predecessor 2) a person, animal, or thing regarded as a harbinger: The first robin is a precursor of spring[/ex] 3) biochem. chem. a… …   From formal English to slang

• precursor — noun a) That which precurses, a forerunner, a predecessor, an indicator of approaching events. b) One of the compounds that participates in the chemical reaction that produces another compound …   Wiktionary

• precursor — noun 1》 a person or thing that comes before another of the same kind. 2》 a substance from which another is formed, especially by metabolic reaction. Derivatives precursory adjective Origin ME: from L. praecursor, from praecurs preceded , from… …   English new terms dictionary

• precursor — n. 1 a a forerunner. b a person who precedes in office etc. 2 a harbinger. 3 a substance from which another is formed by decay or chemical reaction etc. Etymology: L praecursor f. praecurrere praecurs (as PRAE , currere run) …   Useful english dictionary

• Composite Reaction Texturing — Scanning Electron Microscope image of Bi2Sr2CaCu2O8+x material prepared by the CRT method. The dark areas are the MgO whiskers. The material is etched to reveal the grain boundaries. The Bi2Sr2CaCu2O8+x grains are flake shaped with the c axis… …   Wikipedia

• Selected reaction monitoring — (SRM) is a method used in tandem mass spectrometry in which an ion of a particular mass is selected in the first stage of a tandem mass spectrometer and an ion product of a fragmentation reaction of the precursor ion is selected in the second… …   Wikipedia

• Kolbe-Schmitt reaction — The Kolbe Schmitt reaction/Kolbe process (named after Adolph Wilhelm Hermann Kolbe and Rudolf Schmitt) is a carboxylation chemical reaction that proceeds by heating sodium phenolate (the sodium salt of phenol) with carbon dioxide under pressure… …   Wikipedia