Aluminium phosphide

Aluminium phosphide
Names
	Other names Aluminum phosphide; Aluminium(III) phosphide; Aluminium monophosphide; Phostoxin; Fumitoxin
Identifiers
CAS Number	20859-73-8 ;
3D model (JSmol)	Interactive image;
ChemSpider	28171 ;
ECHA InfoCard	100.040.065
EC Number	244-088-0;
PubChem CID	30332;
RTECS number	BD1400000;
UNII	E23DR6L59S ;
UN number	1397 3048
CompTox Dashboard (EPA)	DTXSID1023867 ;
	InChI InChI=1S/Al.P Key: PPNXXZIBFHTHDM-UHFFFAOYSA-N ; InChI=1/Al.P/rAlP/c1-2 Key: PPNXXZIBFHTHDM-LQQCNYPFAR;
	SMILES [PH+]12[Al-][PH+]3[Al-][PH+]([AlH-]14)[AlH-]1[P+]5([AlH-]38)[Al-]26[PH+]2[AlH-]([P+]4)[PH+]1[Al-][PH+]3[AlH-]2[P+][AlH-]([PH+]6[AlH-]([PH+])[PH+]68)[PH+]([Al-]6)[AlH-]35;
Properties
Chemical formula	AlP
Molar mass	57.9552 g/mol
Appearance	Yellow or gray crystals
Odor	garlic-like
Density	2.85 g/cm3
Melting point	2,530 °C (4,590 °F; 2,800 K)
Solubility in water	reacts
Band gap	2.5 eV (indirect)
Refractive index (nD)	2.75 (IR), ~3 (Vis)
Structure
Crystal structure	Zincblende
Space group	T2d-F43m
Lattice constant	a = 546.35 pm
Coordination geometry	Tetrahedral
Thermochemistry
Std molar; entropy (S⦵298)	47.3 J/mol K
Std enthalpy of; formation (ΔfH⦵298)	-164.4 kJ/mol
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H260, H300, H311, H330, H400
Precautionary statements	P223, P231+P232, P260, P264, P270, P271, P273, P280, P284, P301+P310, P302+P352, P304+P340, P310, P312, P320, P321, P322, P330, P335+P334, P361, P363, P370+P378, P391, P402+P404, P403+P233, P405, P501
NFPA 704 (fire diamond)	4 1 2 W
Flash point	> 800 °C (1,470 °F; 1,070 K)
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	11.5 mg/kg
Safety data sheet (SDS)	External MSDS
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

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

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