Phosphate

Phosphate
A form of phosphoric acid. Calcium phosphate makes bones and teeth hard.
* * *
1. A salt or ester of phosphoric acid. For individual phosphates not listed here, see under the name of the base. 2. The trivalent ion, PO43−.
- bone p. SYN: tribasic calcium p..
- codeine p. a water-soluble salt of codeine often used in the pharmaceutical preparation of codeine-containing liquid medications.
- cyclic p. SYN: adenosine 3′,5′-cyclic monophosphate.
- dihydrogen p. one-third-neutralized phosphoric acid; e.g., NaH2PO4, KH2PO4.
- disodium p. na2HPO4.
- energy-rich phosphates SYN: high-energy phosphates.
- high-energy phosphates those p. esters and phosphoanhydrides that, on hydrolysis, yield an unusually large amount of energy; e.g., nucleotide polyphosphates such as ATP, enol phosphates such as phosphoenolpyruvate. SEE ALSO: high-energy compounds, under compound. SYN: energy-rich phosphates.
- inorganic p. (Pi) SYN: inorganic orthophosphate.
- monopotassium p. KH2PO4; a dihydrogen p. used as a reagent; commonly used in buffers.
- monosodium p. NaH2PO4; a dihydrogen p. used as a reagent; commonly used in buffers.
- normal p. a salt of phosphoric acid or pyrophosphoric acid in which all the hydrogen atoms are displaced; e.g., Na3PO4, Na4P2O7.
- organic p. an ester of phosphoric acid; e.g., glycerol p., adenosine p., hexose p..
- triple p. 1. magnesium ammonium p., MgNH4PO4; 2. a crude p. fertilizer product from p. rock and phosphoric acid.
- trisodium p. Na3PO4; used to emulsify fats, oil, and grease; an irritant.

* * *

phos·phate 'fäs-.fāt n
1 a) a salt or ester of a phosphoric acid
b) the trivalent anion PO43- derived from phosphoric acid H3PO4
2) an organic compound of phosphoric acid in which the acid group is bound to nitrogen or a carboxyl group in a way that permits useful energy to be released (as in metabolism)

* * *

phos·phate (fosґfāt) [L. phosphas] 1. any salt of phosphoric acid or its anions, particularly referring to orthophosphate (inorganic phosphate). 2. any ester of phosphoric acid or of one of its salts or anions; an organic phosphate (q.v.). For specific salts, see entries under the adjectival form, e.g., for carbamoyl phosphate, see under carbamoyl.

Medical dictionary. 2011.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Phosphate — Systematic name …   Wikipedia

  • phosphate — [ fɔsfat ] n. m. • 1782; de phosphore ♦ Sel résultant de l action d un des acides phosphoriques avec une base (ex. pyrophosphates). Lessive sans phosphates. Géol. Phosphates naturels : apatite, phosphorite, monazite. ♢ Cour. Phosphate de calcium… …   Encyclopédie Universelle

  • phosphaté — phosphate [ fɔsfat ] n. m. • 1782; de phosphore ♦ Sel résultant de l action d un des acides phosphoriques avec une base (ex. pyrophosphates). Lessive sans phosphates. Géol. Phosphates naturels : apatite, phosphorite, monazite. ♢ Cour. Phosphate… …   Encyclopédie Universelle

  • Phosphate — Das Anion PO43− Ein Kondensat: Diphosphat …   Deutsch Wikipedia

  • Phosphate — Phosphate. Die Salze der drei verschiedenen Phosphorsäuren bezeichnet man als Phosphate, und zwar je nach der Phosphorsäure, von der sie sich ableiten, als Ortho , als Pyro oder als Metaphosphate. Da die Orthophosphorsäure eine dreibasische Säure …   Lexikon der gesamten Technik

  • Phosphate —   [zu griechisch phõs »Licht«], Singular Phosphat das, (e)s, im weiteren Sinn die Salze und Ester der verschiedenen Phosphorsauerstoffsäuren (Phosphorverbindungen); im engeren Sinn die Phosphate(V), d. h. die Salze und Ester der Phosphor(V) säure …   Universal-Lexikon

  • phosphaté — phosphaté, ée (fo sfa té, tée) adj. Terme de chimie. Qui est à l état de phosphate.    S. f. pl. Terme de minéralogie. Les phosphatées, ordre de roches pierreuses …   Dictionnaire de la Langue Française d'Émile Littré

  • phosphate — a salt of phosphoric acid, 1795, from Fr. phosphate (1787), from phosphore (see PHOSPHORUS (Cf. phosphorus)) + ATE (Cf. ate) (3) …   Etymology dictionary

  • Phosphate — Phos phate, n. (Chem.) A salt of phosphoric acid. [1913 Webster] …   The Collaborative International Dictionary of English

  • Phosphate — Phosphate, so v.w. Phosphorsaure Salze …   Pierer's Universal-Lexikon

  • Phosphate — Phosphate, soviel wie Phosphorsäuresalze, z. B. Natriumphosphat, phosphorsaures Natron …   Meyers Großes Konversations-Lexikon

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”