Arsenic(III) telluride

Arsenic(III) telluride
Names
	IUPAC name Arsenic(III) telluride
	Other names Arsenic telluride
Identifiers
CAS Number	12044-54-1;
3D model (JSmol)	Interactive image;
ChemSpider	22797844;
ECHA InfoCard	100.031.765
EC Number	234-955-1;
PubChem CID	6336551;
CompTox Dashboard (EPA)	DTXSID001014262 ;
	InChI InChI=1S/2As.3Te Key: KOOQXSDVIQPGQD-UHFFFAOYSA-N;
	SMILES [As].[As].[Te].[Te].[Te];
Properties
Chemical formula	As2Te3
Molar mass	532.64 g·mol−1
Structure
Crystal structure	Monoclinic
Space group	C2/m
Lattice constant	a = 14.339 Å, b = 4.006 Å, c = 9.873 Å α = 90°, β = 95°, γ = 90°
Lattice volume (V)	564.96
Formula units (Z)	4
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H331, H410
Precautionary statements	P261, P264, P270, P271, P273, P301+P310, P304+P340, P311, P321, P330, P391, P403+P233, P405, P501
Related compounds
Other anions	Arsenic trioxide; Arsenic trisulfide; Arsenic triselenide
Other cations	Antimony telluride; Bismuth telluride
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Arsenic(III) telluride is an inorganic compound of arsenic and tellurium with the chemical formula As₂Te₃. It exists in two forms, the monoclinic α phase which transforms under high pressure to a rhombohedral β phase. The compound is a semiconductor, with most current carried by holes. Arsenic telluride has been examined for its use in nonlinear optics.