Nickel diarsenide

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Crystal structure
No drawing available
General
Surname Nickel diarsenide
other names

Nickel arsenide (ambiguous)

Ratio formula NiAs 2
Brief description

black odorless solid

External identifiers / databases
CAS number 12068-61-0
EC number 235-103-1
ECHA InfoCard 100,031,900
PubChem 91886304
Wikidata Q72494109
properties
Molar mass 208.53 g mol −1
Physical state

firmly

Melting point

1040 ° C

solubility

practically insoluble in water

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
07 - Warning 08 - Dangerous to health 09 - Dangerous for the environment

danger

H and P phrases H: 350i-372-317-410
P: 201-280-302 + 352-308 + 313
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Nickel diarsenide is an inorganic chemical compound of nickel from the group of arsenides .

Occurrence

Nickeldiarsenid occurs naturally in the form of minerals rammelsbergite , Pararammelsbergit , Krutovit and Chloanthit ago.

Extraction and presentation

Nickel diarsenide can be obtained by reacting nickel with arsenic .

properties

Nickel diarsenide is a black, odorless solid that is practically insoluble in water. It has an orthorhombic crystal structure with the space group Pbca (space group no. 61) . Template: room group / 61

Individual evidence

  1. ↑ a b c d data sheet Nickel arsenide, 99.5% (metals basis excluding Co), Co 0.1-1% at AlfaAesar, accessed on June 12, 2020 ( PDF )(JavaScript required) .
  2. ↑ a b c Entry on nickel diarsenide in the GESTIS substance database of the IFA , accessed on June 12, 2020(JavaScript required) .
  3. ^ Helmut Schrätze, Karl-Ludwig Weiner: Mineralogie A textbook on a systematic basis . Walter de Gruyter, 2011, ISBN 978-3-11-083686-8 , pp. 266 ( limited preview in Google Book search).
  4. ↑ Entry on nickel diarsenide in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on June 12, 2020. Manufacturers or distributors can expand the harmonized classification and labeling .
  5. ^ A b S. L. Bennett, RD Heyding: ARSENIDES OF THE TRANSITION METALS: VIII. SOME BINARY AND TERNARY GROUP VIII DIARSENIDES AND THEIR MAGNETIC AND ELECTRICAL PROPERTIES. In: Canadian Journal of Chemistry. 44, 1966, p. 3017, doi : 10.1139 / v66-444 .