fluoride

fluor·ide

F0206800 (flo͝or′īd′, flôr′-)n. Univalent fluorine, or a compound of fluorine, especially a binary compound of fluorine with a more electropositive element.

[fluor(ine) + -ide.]

fluoride

(ˈflʊəˌraɪd) n1. (Chemistry) any salt of hydrofluoric acid, containing the fluoride ion, F^–2. (Chemistry) any compound containing fluorine, such as methyl fluoride

fluor•ide

(ˈflʊər aɪd, ˈflɔr-, ˈfloʊr-)

n. 1. a salt of hydrofluoric acid consisting of two elements, one of which is fluorine, as sodium fluoride, NaF. 2. a compound containing fluorine. [1820–30]

fluor·ide

(flo͝or′īd′) A compound containing fluorine and another element or radical.

Thesaurus

Noun

fluoride - a salt of hydrofluoric acidboron trifluoride - a pungent colorless gashalide - a salt of any halogen acidhydrogen fluoride - a colorless poisonous corrosive liquid made by the action of sulphuric acid on calcium fluoride; solutions in water are hydrofluoric acidstannous fluoride - a white powder that is used to fluoridate toothpastesulfur hexafluoride, sulphur hexafluoride - a colorless gas that is soluble in alcohol and ether; a powerful greenhouse gas widely used in the electrical utility industry

Translations

氟化物

fluoride

(ˈfluəraid) noun any of several substances containing fluorine, especially one which helps to prevent tooth decay. 氟化物fluorine (ˈfluəriːn) noun an element, a pale greenish-yellow gas. 氟

fluoride

fluoride,

a salt of hydrofluoric acid; see hydrogen fluoridehydrogen fluoride,
chemical compound, HF, a colorless, fuming liquid or colorless gas that boils at 19.54&degC;. It is miscible with water and is soluble in benzene, toluene, and concentrated sulfuric acid.
..... Click the link for more information. . See also fluoridationfluoridation
, process of adding a fluoride to the water supply of a community to preserve the teeth of the inhabitants. Tooth enamel ordinarily contains small amounts of fluorides and when the amount is augmented through the intake of fluoridated water, especially during the
..... Click the link for more information. ; fluorinefluorine
, gaseous chemical element; symbol F; at. no. 9; at. wt. 18.9984; m.p. −219.6&degC;; b.p. −188.14&degC;; density 1.696 grams per liter at STP; valence −1. Fluorine is a yellowish, poisonous, highly corrosive gas.
..... Click the link for more information. .

Fluoride

a compound of fluorine with other elements. The fluorides of elements in Groups I and II of Mendeleev’s periodic system are solids with an ionic element—fluorine bond; the fluorides of most elements in Groups VI–VII are gases with a covalent element—fluorine bond. Compounds containing a C—F bond form numerous classes of fluorocarbons; the higher fluorides of many metals, such as U, V, Mo, W, and Re, are volatile substances. Fluorides occur in nature as constituents of minerals. In terms of chemical properties, the fluorides of halogens, inert gases, oxygen, nitrogen, and many other elements in higher oxidation states (for example, PtF₅, CoF₃, and AgF₂) are oxidizing agents; the fluorides of arsenic, antimony, and boron are strong Lewis acids (seeACIDS AND BASES).

Fluorides can be obtained by the interaction of fluorine with elements, by the action of hydrogen fluoride on metals, and by other methods.

Hydrogen fluoride, oxyfluorides, and nitrogen fluorine compounds are widely used. The chlorine fluorides C1F₃ and C1F₅ are rocket-fuel oxidizing agents; C1F₃ also serves as a fluorinating agent in the preparation of uranium hexafluoride, UF₆, which is used in the atomic industry for the isotope separation of uranium. The volatile fluorides of metals are used in the application of metallic coatings. The fluorides of lithium, magnesium, calcium, strontium, barium, and other metals are used as raw materials in the manufacture of optical glass. (See alsoCRYOLITE.)

REFERENCES

See references under .

A. V. PANKRATOV

fluoride

[′flu̇r‚īd] (inorganic chemistry) A salt of hydrofluoric acid, HF, in which the fluorine atom is in the -1 oxidation state.

fluoride

1. any salt of hydrofluoric acid, containing the fluoride ion, F^-- 2. any compound containing fluorine, such as methyl fluoride

fluoride

[floor´īd] any binary compound of fluorine.fluoride poisoning a toxic condition that sometimes occurs with ingestion of excessive fluoride. Acute fluoride poisoning involves an immediate physiological reaction, with nausea, vomiting, hypersalivation, abdominal pain, and diarrhea. Chronic fluoride poisoning is a physiological reaction to long term exposure to high levels of fluoride and is characterized by fluorosis" >dental fluorosis, fluorosis" >skeletal fluorosis, and kidney damage. Called also fluorosis.systemic fluoride a fluoride ingested in water, supplements, or some other form. See also fluoridation.topical fluoride a fluoride applied directly to the teeth, especially of children, in a dental caries prevention program.

fluor·ide

(flōr'īd), 1. A compound of fluorine with a metal, a nonmetal, or an organic radical. 2. The anion of fluorine; inhibits enolase; found in bone and tooth apatite; fluoride has a cariostatic effect; high levels are toxic.

fluor·ide

(flōr'īd) A compound of fluorine with a metal, a nonmetal, or an organic radical; the anion of fluorine; inhibits enolase; found in bone and tooth apatite; fluoride has a cariostatic effect; high levels are toxic.

fluoride

a compound of fluorine that replaces hydroxyl groups in teeth and bones and reduces the tendency to tooth decay. Its therapeutic use was discovered accidentally at Bauxite, Arkansas, when water containing fluoride was replaced by water lacking fluoride, resulting in an increase of dental cavities in children. See FLUORIDATION, DENTAL CARIES.

Fluoride

A chemical compound containing fluorine that is used to treat water or applied directly to teeth to prevent decay.Mentioned in: Teeth Whitening, Tooth Decay

fluor·ide

(flōr'īd) 1. A compound of fluorine with a metal, a nonmetal, or an organic radical. 2. The anion of fluorine; inhibits enolase; found in bone and tooth apatite; fluoride has a cariostatic effect; high levels are toxic.

fluoride

fluor·ide

fluoride

fluor•ide

fluor·ide

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fluoride,

Fluoride

REFERENCES

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Words related to fluoride

noun a salt of hydrofluoric acid

Related Words