fluorine substance

fluorine substance
фторсодержащее вещество

Англо-русский словарь по экологии. 2011.

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  • Fluorine — Fluorine, la. fluorum, meaning to flow ), is the chemical element with the symbol F and atomic number 9. Atomic fluorine is univalent and is the most chemically reactive and electronegative of all the elements. In its elementally isolated (pure)… …   Wikipedia

  • fluorine — /floor een, in, flawr , flohr /, n. Chem. the most reactive nonmetallic element, a pale yellow, corrosive, toxic gas that occurs combined, esp. in fluorite, cryolite, phosphate rock, and other minerals. Symbol: F; at. wt.: 18.9984; at. no.: 9.… …   Universalium

  • fluorine F 18 FEQA — A radioactive substance being studied in positron emission tomography (PET) imaging to detect cancer and to monitor the response of some types of cancer to treatment. Fluorine F 18 FEQA attaches to the epidermal growth factor receptor (EGFR)… …   English dictionary of cancer terms

  • fluorine — flu|o|rine [ˈfluəri:n US ˈflur ] n [U] [Date: 1800 1900; : Modern Latin; Origin: fluor; FLUORESCENT] a chemical substance that is usually in the form of a poisonous pale yellow gas. It is a chemical ↑element : symbol F …   Dictionary of contemporary English

  • fluorine — noun (U) a chemical substance that is usually in the form of a poisonous gas …   Longman dictionary of contemporary English

  • fluorine F 18 EF5 — A substance being studied in positron emission tomography (PET) imaging to detect tumor hypoxia (a low level of oxygen in the tumor). This may help predict how the tumor will respond to treatment. It is a type of radiopharmaceutical. Also called… …   English dictionary of cancer terms

  • Quartz Fluorine Tube — Quartz Fluorine Vessel Fluorine is the most reactive and electronegative substance known to man, therefore specialized containers must be prepared to hold and view the gas. The preparation of these vessels is delicate and labor intensive, but… …   Wikipedia

  • Corrosive substance — European Union standard symbol for corrosives. GHS and other symbols are similar. A corrosive substance is one that will destroy or irreversibly damage another surface or substance with which it comes into contact. The main hazards to people… …   Wikipedia

  • halogens — Substance containing fluorine, chlorine, bromine, and iodine …   Dictionary of automotive terms

  • chemical compound — Introduction  any substance composed of identical molecules consisting of atoms (atom) of two or more chemical elements (chemical element).       All the matter in the universe is composed of the atoms of more than 100 different chemical elements …   Universalium

  • oxidation–reduction reaction — ▪ chemical reaction Introduction also called  redox reaction        any chemical reaction in which the oxidation number of a participating chemical species changes. The term covers a large and diverse body of processes. Many oxidation– reduction… …   Universalium


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