Cobalt arsenide
| Names | |
|---|---|
| Other names arsanylidynecobalt, cobalt monoarsenide | |
| Identifiers | |
CAS Number |
|
3D model (JSmol) |
|
| ChemSpider |
|
| ECHA InfoCard | 100.043.775  |
| EC Number |
|
PubChem CID |
|
CompTox Dashboard (EPA) |
|
InChI
| |
| |
| Properties | |
Chemical formula | CoAs |
| Molar mass | 133.85 |
| Appearance | solid |
| Density | 6.73 g/cm3 |
| Melting point | 916 °C (1,681 °F; 1,189 K) |
| Hazards | |
| GHS labelling:[1] | |
Pictograms |   |
| 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 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
Chemical compound
Cobalt arsenide is a binary inorganic compound of cobalt and arsenic with the chemical formula CoAs.[2][3] The compound occurs naturally as the mineral modderite.[4][5]
Physical properties
Cobalt arsenide crystallizes in the orthorhombic system, space group Pnam, parameter parameters a = 0.515 nm, b = 0.596 nm, c = 0.351 nm, Z = 4.
Cobalt arsenide is isostructural with FeAs.[6]
At approximately 6-8 GPa, single crystals of CoAs undergo a transformation to a lower-symmetry phase.[5]
Use
CoAs is used as a semiconductor and in photo optic applications.[7]
References
- ^ "Cobalt arsenide". pubchem.ncbi.nlm.nih.gov. Retrieved 23 January 2022.
- ^ Lide, David R. (29 June 2004). CRC Handbook of Chemistry and Physics, 85th Edition. CRC Press. pp. 4–53. ISBN 978-0-8493-0485-9. Retrieved 20 January 2022.
- ^ Toxic Substances Control Act (TSCA) Chemical Substance Inventory. U.S. Government Printing Office. 1979. p. 16. Retrieved 20 January 2022.
- ^ "Modderite Mineral Data". webmineral.com. Retrieved 20 January 2022.
- ^ a b Gramsch, Stephen (December 2004). "Crystal Chemistry of Transition Metal Arsenides and the High Pressure Behavior of CoAs". Retrieved 20 January 2022.
- ^ Heyding, R. D.; Calvert, L. D. (1 May 1957). "Arsenides of Transition Metals: The Arsenides of Iron and Cobalt". Canadian Journal of Chemistry. 35 (5): 449–457. doi:10.1139/v57-065. Retrieved 20 January 2022.
- ^ "Cobalt(III) Arsenide". American Elements. Retrieved 20 January 2022.
- v
- t
- e
- HCo(CO)4
- CoBr2
- Co(CN)2
- CoCO3
- CoC2O4
- CoCl2
- Co(ClO3)2
- Co(ClO4)2
- CoF2
- Co(HCO2)2
- CoI2
- Co(NO3)2
- Co3(PO4)2
- Co(OAc)2
- CoGeO3
- CoO
- Co(OH)2
- CoS
- Co(OCN)2
- Co(SCN)2
- CoSO4
- CoSe
- Co3P2
- CoH2
- Co(C3H6O3)2
- C
24H
48CoO
4 - C
36H
70CoO
4
- Co3O4
- CoAs
- CoCl3
- Co(NO3)3
- Co2O3
- CoF3
- Co(OH)3
- LiCoO2
- NaxCoO2
- CoF4
- Cs2CoF6
- CoC28H44
- Na3CoO4
