Cadmium arsenide information

Cadmium arsenide
	; Cd3As2 crystals with (112) and (400) orientations
	; STM image of the (112) surface
Names
	Other names Tricadmium diarsenide
Identifiers
CAS Number	12006-15-4;
3D model (JSmol)	Interactive image;
ChemSpider	10678197;
ECHA InfoCard	100.031.336
EC Number	234-484-1;
PubChem CID	6391215;
CompTox Dashboard (EPA)	DTXSID70893709 ;
	InChI InChI=1/2As.3Cd/q2-3;3+2 Key: PYIKGNIRLAMTQG-UHFFFAOYAS;
	SMILES [Cd+2].[Cd+2].[Cd+2].[As-3].[As-3];
Properties
Chemical formula	Cd3As2
Molar mass	487.08 g/mol
Appearance	solid, dark grey
Density	3.031
Melting point	716 °C (1,321 °F; 989 K)
Solubility in water	decomposes in water
Structure
Crystal structure	Tetragonal, tI208
Space group	I41/acd, No. 142-2
Lattice constant	a = 1.26512(3) nm, c = 2.54435(4) nm
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H312, H330, H350, H410
Precautionary statements	P201, P202, P260, P261, P264, P270, P271, P273, P280, P281, P284, P301+P310, P302+P352, P304+P340, P308+P313, P310, P311, P312, P320, P321, P322, P330, P363, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)	4 1 0 W
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	no data
	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)]
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Cadmium arsenide (Cd₃As₂) is an inorganic semimetal in the II-V family. It exhibits the Nernst effect.

^ ^a ^b Sankar, R.; Neupane, M.; Xu, S.-Y.; Butler, C. J.; Zeljkovic, I.; Panneer Muthuselvam, I.; Huang, F.-T.; Guo, S.-T.; Karna, Sunil K.; Chu, M.-W.; Lee, W. L.; Lin, M.-T.; Jayavel, R.; Madhavan, V.; Hasan, M. Z.; Chou, F. C. (2015). "Large single crystal growth, transport property, and spectroscopic characterizations of three-dimensional Dirac semimetal Cd₃As₂". Scientific Reports. 5: 12966. Bibcode:2015NatSR...512966S. doi:10.1038/srep12966. PMC 4642520. PMID 26272041.
^ Ali, M. N.; Gibson, Q.; Jeon, S.; Zhou, B. B.; Yazdani, A.; Cava, R. J. (2014). "The Crystal and Electronic Structures of Cd₃As₂, the Three-Dimensional Electronic Analogue of Graphene". Inorganic Chemistry. 53 (8): 4062–4067. arXiv:1312.7576. doi:10.1021/ic403163d. PMID 24679042.
^ ^a ^b ^c NIOSH Pocket Guide to Chemical Hazards. "#0087". National Institute for Occupational Safety and Health (NIOSH).

and 26 Related for: Cadmium arsenide information

Names
Cd₃As₂ crystals with (112) and (400) orientations^[1]
STM image of the (112) surface^[1]
Other names Tricadmium diarsenide
Identifiers
CAS Number	12006-15-4
3D model (JSmol)	Interactive image
ChemSpider	10678197
ECHA InfoCard	100.031.336
EC Number	234-484-1
PubChem CID	6391215
CompTox Dashboard (EPA)	DTXSID70893709
InChI InChI=1/2As.3Cd/q2-3;3+2 Key: PYIKGNIRLAMTQG-UHFFFAOYAS
SMILES [Cd+2].[Cd+2].[Cd+2].[As-3].[As-3]
Properties
Chemical formula	Cd₃As₂
Molar mass	487.08 g/mol
Appearance	solid, dark grey
Density	3.031
Melting point	716 °C (1,321 °F; 989 K)
Solubility in water	decomposes in water
Structure^[2]
Crystal structure	Tetragonal, tI208
Space group	I4₁/acd, No. 142-2
Lattice constant	a = 1.26512(3) nm, c = 2.54435(4) nm
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H312, H330, H350, H410
Precautionary statements	P201, P202, P260, P261, P264, P270, P271, P273, P280, P281, P284, P301+P310, P302+P352, P304+P340, P308+P313, P310, P311, P312, P320, P321, P322, P330, P363, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)	4 1 0 W
Lethal dose or concentration (LD, LC):
LD₅₀ (median dose)	no data
NIOSH (US health exposure limits):
PEL (Permissible)	[1910.1027] TWA 0.005 mg/m³ (as Cd)^[3]
REL (Recommended)	Ca^[3]
IDLH (Immediate danger)	Ca [9 mg/m³ (as Cd)]^[3]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references