phosphine

/fos"feen, -fin/, n. Chem.
1. a colorless, poisonous, ill-smelling, flammable gas, PH3.
2. any of certain organic derivatives of this compound.
[1870-75; PHOSPH- + -INE1]

* * *

(PH3),also called  Hydrogen Phosphide,  

      a colourless, flammable, extremely toxic gas, with a disagreeable, garlic-like odour. Phosphine is formed by the action of a strong base or hot water on white phosphorus or by the reaction of water with calcium phosphide (Ca3P2). Phosphine is structurally similar to ammonia (NH3), but phosphine is a much poorer solvent than ammonia and is much less soluble in water.

      Organic compounds with bonds between phosphorus and carbon or hydrogen are named as derivatives of phosphine; in primary, secondary, and tertiary phosphines, one, two, and three hydrogen atoms have been replaced by organic combining groups. Thus methylphosphine (CH3PH2) is a primary phosphine, in which the methyl group (CH3) takes the place of one of the hydrogen atoms of phosphine itself. The metal salts are called phosphides, and the protonated forms (compounds to which a hydrogen ion has been added) are called phosphonium compounds. The organic derivatives of phosphine are usually made by substitution reactions using the readily available phosphorus trichloride (PCl3).

* * *


Universalium. 2010.

Look at other dictionaries:

  • Phosphine — Structure de la phosphine Général …   Wikipédia en Français

  • phosphine — [ fɔsfin ] n. f. • 1874; de phosphore ♦ Chim. 1 ♦ Les phosphines : classe de composés organiques qui dérivent de l hydrogène phosphoré gazeux (PH3) par substitution de radicaux alcooliques à un ou plusieurs atomes d hydrogène. 2 ♦ (1959)… …   Encyclopédie Universelle

  • Phosphīne — (Phosphorbasen), organische Basen, die sich vom Phosphorwasserstoff PH3 ableiten, wie die Ammoniakbasen vom Ammoniak NH3 (s. Basen), indem die Wasserstoffatome durch Alkoholradikale ersetzt werden. So entstehen z. B. Man erhält P. durch Erhitzen… …   Meyers Großes Konversations-Lexikon

  • Phosphine — Phos phine, n. (Dyeing) Chrysaniline, often in the form of a salt. [Webster 1913 Suppl.] …   The Collaborative International Dictionary of English

  • Phosphine — Phos phine, n. (Chem.) A colorless gas, {PH3}, analogous to ammonia, and having a disagreeable odor resembling that of garlic. Called also {hydrogen phosphide}, and formerly, {phosphureted hydrogen}. [1913 Webster] Note: It is the most important… …   The Collaborative International Dictionary of English

  • Phosphine — Phosphine,   Phosphorverbindungen …   Universal-Lexikon

  • phosphine — [fäs′fēn΄, fäs′fin] n. [ PHOSPH + INE3] 1. hydrogen phosphide, PH3, a colorless, poisonous, flammable gas with a garliclike odor 2. a synthetic yellow dye …   English World dictionary

  • Phosphine — Chembox new Name = Phosphine ImageFile = Phosphine.png ImageSize = 100px ImageName = Phosphine ImageFileL1 = Phosphine 3D balls.png ImageSizeL1 = 100px ImageFileR1 = Phosphine 3D vdW.png ImageSizeR1 = 120px IUPACName = Phosphane OtherNames =… …   Wikipedia

  • phosphine — noun Etymology: International Scientific Vocabulary Date: 1869 1. any of various derivatives of phosphine analogous to amines but weaker as bases 2. a colorless poisonous flammable gas PH3 that is a weaker base than ammonia and that is used… …   New Collegiate Dictionary

  • Phosphine — Monophosphan, das einfachste Phosphan Die Bezeichnungen Phosphane und Phosphine werden synonym für dieselbe Verbindungsklasse verwendet. Die dazu gehörigen Verbindungen bestehen aus einem dreiwertigen Phosphoratom oder Ketten aus mehreren solcher …   Deutsch Wikipedia

Share the article and excerpts

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

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.