Cobalt_arsenide Knowpia

Cobalt arsenide
Names
	Other names arsanylidynecobalt, cobalt monoarsenide
Identifiers
CAS Number	27016-73-5 ;
3D model (JSmol)	Interactive image;
ChemSpider	105360;
ECHA InfoCard	100.043.775
EC Number	248-168-6;
PubChem CID	117908;
CompTox Dashboard (EPA)	DTXSID401014640 ;
	InChI InChI=1S/As.Co Key: NMLUQMQPJQWTFK-UHFFFAOYSA-N;
	SMILES [As]#[Co];
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:
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
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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 edit

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 edit

CoAs is used as a semiconductor and in photo optic applications.^[7]

References edit

^ "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.

[1] "Cobalt arsenide". pubchem.ncbi.nlm.nih.gov. Retrieved 23 January 2022.

[2] 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.

[3] Toxic Substances Control Act (TSCA) Chemical Substance Inventory. U.S. Government Printing Office. 1979. p. 16. Retrieved 20 January 2022.

[4] "Modderite Mineral Data". webmineral.com. Retrieved 20 January 2022.

[MO-5] Gramsch, Stephen (December 2004). "Crystal Chemistry of Transition Metal Arsenides and the High Pressure Behavior of CoAs". Retrieved 20 January 2022.

[6] 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.

[AA-7] "Cobalt(III) Arsenide". American Elements. Retrieved 20 January 2022.

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Summary

Physical properties edit

Use edit

References edit