Aluminium phosphide


Aluminium phosphide

Chembox new
Name = Aluminium phosphide
ImageFile = Sphalerite-unit-cell-depth-fade-3D-balls.png ImageSize = 200px
ImageName = Aluminium phosphide
OtherNames = Aluminium(III) phosphide
Aluminium monophosphide
Phostoxin
Fumitoxin
Section1 = Chembox Identifiers
CASNo = 20859-73-8

Section2 = Chembox Properties
Formula = AlP
MolarMass = 58.0 g/mol
Appearance = yellow or gray crystals
Density = 2.42 g/cm³, solid
Solubility = soluble
MeltingPt = >1000 °C
BoilingPt =

Section7 = Chembox Hazards
ExternalMSDS = [http://physchem.ox.ac.uk/MSDS/AL/aluminium_phosphide.html External MSDS]
FlashPt = >800 °C
EUClass = Toxic (T); Dangerous for the environment (N)
NFPA-H = 4 | NFPA-F = 4 | NFPA-R = 2 | NFPA-O = W

Aluminium phosphide is the chemical compound with the formula AlP. This colourless solid is generally sold as a grey-green-yellow powder due to the presence of impurities arising hydrolysis and oxidation. This material is a wide band gap semiconductor and is used as a fumigant.

tructure, synthesis, and properties

AlP crystallizes in the cubic zinc blende motif, wherein all atoms have tetrahedral coordination. Related materials crystallize similarly, including GaAs.

Crude aluminium phosphide can be prepared in the laboratory by igniting a mixture of red phosphorus and powdered aluminium. [cite journal | author = Wayne E. White, A. H. Bushey | title = Aluminum Phosphide | journal = Inorganic Syntheses | year = 1953 | volume = 4 | pages = 23–25 | doi = 10.1002/9780470132357.ch7]

Aluminium phosphide reacts with water or acids to release phosphine. [Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. ISBN 0-12-352651-5.] :AlP + 3 H2O → Al(OH)3 + PH3:AlP + 3 H+ → Al3+ + PH3

Pesticide

AlP is used as a rodenticide, insecticide and fumigant for stored cereal grains. It is used to kill small verminous mammals such as moles, rabbits, and rodents. The tablets or pellets typically also contain other chemicals which evolve ammonia which helps to reduce the potential for spontaneous ignition or explosion of the phosphine gas. Pure phosphine is odorless, but technical grade phosphine has a highly unpleasant odor like garlic or rotting fish, due to the presence of substituted phosphine and diphosphine (P2H4).

As a rodenticide, aluminium phosphide pellets are provided as a mixture of food for the consumption by the rodents. The acid in the digestive system of the rodent reacts with the phosphide to generate the toxic phosphine gas. Other pesticides similar to aluminium phosphide are zinc phosphide and calcium phosphide.

As a rodenticide, aluminium phosphide can be encountered under names eg. Celphos, Fumitoxin, Phostoxin, and Quick Phos.

emiconductor applications

Industrially, AlP is a semiconductor material that is usually alloyed with other binary materials for applications in devices such as light-emitting diodes (e.g. aluminium gallium indium phosphide). [D. E. C. Corbridge "Phosphorus: An Outline of its Chemistry, Biochemistry, and Technology" 5th Edition Elsevier: Amsterdam 1995. ISBN 0-444-89307-5.]

References


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Aluminium gallium phosphide — (AluminumGalliumPhosphorus, also GaAlP), a phosphide of aluminium and gallium, is a semiconductor material. It is an alloy of aluminium phosphide and gallium phosphide.AlGaP is used to manufacture light emitting diodes emitting green light.ee… …   Wikipedia

  • Phosphide — In chemistry a phosphide is a compound of phosphorus with a less electronegative element or elements. Binary compounds are formed with the majority of less electronegative elements with the exception of Hg, Pb, Sb, Bi, Te, Po.H.G. Von Schnering,… …   Wikipedia

  • Aluminium — Infobox aluminiumAluminium (Audio IPA|En uk aluminium1.ogg|ˌæljʊˈmɪniəm, IPA|/ˌæljəˈmɪniəm/) or aluminum (Audio IPA|En uk aluminum.ogg|/əˈluːmɪnəm/, see spelling below) is a silvery white and ductile member of the boron group of chemical elements …   Wikipedia

  • Aluminium nitride — Chembox new Name = Aluminium nitride ImageFile = Aluminium Nitride.jpg ImageName = Aluminum Nitride powder OtherNames = Aluminum nitride Reference = [cite web url = http://accuratus.com/alumni.html title = Aluminum Nitride publisher = Accuratus]… …   Wikipedia

  • Aluminium gallium indium phosphide — (AluminumGalliumIndiumPhosphorus, also AlInGaP, InGaAlP, etc.) is a semiconductor material.AlGaInP is used in manufacture of light emitting diodes of high brightness red, orange, green, and yellow color, to form the heterostructure emitting light …   Wikipedia

  • Sodium phosphide — Other names sodium phosphide, common trisodiophosphine …   Wikipedia

  • Zinc phosphide — Chembox new Name = Zinc phosphide ImageName = Zinc phosphide OtherNames = trizinc diphosphide Section1 = Chembox Identifiers CASNo = 1314 84 7 Section2 = Chembox Properties Formula = Zn3P2 MolarMass = 258.1 g/mol Appearance = dark gray crystals… …   Wikipedia

  • Indium(III) phosphide — Chembox new Name = Indium(III) phosphide ImageFile = Indium(III) phosphide.jpg ImageSize = 200px ImageName = Indium(III) phosphide IUPACName = Indium phosphide OtherNames = Indium(III) phosphide Name = Section1 = Chembox Identifiers CASNo = 22398 …   Wikipedia

  • Calcium phosphide — Chembox new ImageFile = ImageSize = IUPACName = OtherNames = Photophor, CP, Polythanol Section1 = Chembox Identifiers CASNo = 1305 99 3 PubChem = SMILES = Section2 = Chembox Properties Formula = Ca3P2 MolarMass = 182.18 g/mol Appearance = red… …   Wikipedia

  • Boron phosphide — Chembox new ImageFile = ImageSize = IUPACName = OtherNames = Section1 = Chembox Identifiers CASNo = 20205 91 8 PubChem = SMILES = Section2 = Chembox Properties Formula = BP MolarMass = 41.7855 g/mol Appearance = Density = MeltingPt = BoilingPt =… …   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.