Cadmium telluride

Cadmium telluride
Names
	Other names Irtran-6
Identifiers
CAS Number	1306-25-8 ;
3D model (JSmol)	monomer: Interactive image; crystal form: Interactive image;
ChemSpider	82622 ;
ECHA InfoCard	100.013.773
EC Number	215-149-9;
PubChem CID	91501;
RTECS number	EV3330000;
UNII	STG188WO13;
CompTox Dashboard (EPA)	DTXSID0030950 ;
	InChI InChI=1S/Cd.Te Key: RPPBZEBXAAZZJH-UHFFFAOYSA-N ; InChI=1/Cd.Te/rCdTe/c1-2 Key: RPPBZEBXAAZZJH-UEZHWRJLAD;
	SMILES monomer: [Cd]=[Te]; crystal form: [TeH+2]12[CdH2-2][TeH+2]3[CdH2-2][TeH+2]([CdH-2]14)[CdH-2]1[Te+2]5([CdH-2]38)[Cd-2]26[TeH+2]2[CdH-2]([Te+2]4)[TeH+2]1[CdH2-2][TeH+2]3[CdH-2]2[Te+2][CdH-2]([TeH+2]6[CdH-2]([TeH+2])[TeH+2]68)[TeH+2]([CdH2-2]6)[CdH-2]35;
Properties
Chemical formula	CdTe
Molar mass	240.01 g/mol
Density	5.85 g·cm−3
Melting point	1,041 °C (1,906 °F; 1,314 K)
Boiling point	1,050 °C (1,920 °F; 1,320 K)
Solubility in water	insoluble
Solubility in other solvents	insoluble
Band gap	1.5 eV (@300 K, direct)
Thermal conductivity	6.2 W·m/m2·K at 293 K
Refractive index (nD)	2.67 (@10 µm)
Structure
Crystal structure	Zinc blende
Space group	F43m
Lattice constant	a = 0.648 nm
Thermochemistry
Heat capacity (C)	210 J/kg·K at 293 K
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H312, H332, H410, H411
Precautionary statements	P261, P264, P270, P271, P273, P280, P301+P312, P302+P352, P304+P312, P304+P340, P312, P322, P330, P363, P391, P501
	NIOSH (US health exposure limits):
PEL (Permissible)	[1910.1027] TWA 0.005 mg/m3 (as Cd)
REL (Recommended)	Ca
IDLH (Immediate danger)	Ca [9 mg/m3 (as Cd)]
Related compounds
Other anions	Cadmium oxide; Cadmium sulfide; Cadmium selenide
Other cations	Zinc telluride; Mercury telluride
	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

Cadmium telluride (CdTe) is a stable crystalline compound formed from cadmium and tellurium. It is mainly used as the semiconducting material in cadmium telluride photovoltaics and an infrared optical window. It is usually sandwiched with cadmium sulfide to form a p–n junction solar PV cell.

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