Nickel telluride

General
Surname	Nickel telluride
other names	Nickel (II) telluride Nickel monotelluride
Molecular formula	NiTe
Brief description	gray odorless solid
External identifiers / databases
CAS number 12142-88-0 EC number 235-260-6 ECHA InfoCard 100.032.042 PubChem 62780 Wikidata Q18212146
properties
Molar mass	186.29 g mol −1
Physical state	firmly
solubility	practically insoluble in water
safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary danger H and P phrases H: 317-350i-372-410 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 telluride is an inorganic chemical compound of nickel from the telluride group with the formula NiTe. Some sources claim the compound is a mixture of the compounds NiTe _0.775 and nickel _titelluride .

Occurrence

Nickel telluride occurs naturally in the form of the mineral imgreit .

Extraction and presentation

Nickel telluride can be obtained by reacting tellurium with nickel (II) chloride in sodium hydroxide solution or directly from nickel with tellurium at 600 ° C.

properties

Nickel telluride is a gray, odorless solid that is practically insoluble in water. The connection is stable in air up to approx. 400 ° C. From this temperature onwards oxidation occurs.

${\displaystyle \mathrm {2\ NiTe+O_{2}\longrightarrow NiTe_{2}+NiO} }$

It has a hexagonal crystal structure with the space group P 6 ₃ / mmc (space group no. 194) .

Related links

With nickel titelluride (NiTe ₂ , CAS number: 12035-59-5), which occurs naturally as melonite and has a phase width from NiTe _1.09 to NiTe _2.0 , trinickelditelluride (Ni ₃ Te ₂ ) and the orthorhombic NiTe _0.775 exist at least three more nickel tellurides.

Individual evidence

1. ↑ ^{a b c d e f} Entry on nickel telluride in the GESTIS substance database of the IFA , accessed on January 8, 2020(JavaScript required) .
2. ↑ Entry on Nickel telluride in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on August 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
3. ^ ^{A b} John Wood: Reactivity of Solids . Springer Science & Business Media, 2013, ISBN 978-1-4684-2340-2 , pp. 115 ( limited preview in Google Book search).
4. ↑ HT Zhang, YM Xiong, XG Luo, CH Wang, SY Li, XH Chen: Hydrothermal synthesis and characterization of NiTe alloy nanocrystallites. In: Journal of Crystal Growth. 242, 2002, p. 259, doi : 10.1016 / S0022-0248 (02) 01456-2 .
5. ↑ ^{a b} Norio Umeyama, Madoka Tokumoto, Shota Yagi, Masatoshi Tomura, Kazuyasu Tokiwa, Takenori Fujii, Ryo Toda, Nobuaki Miyakawa, Shin-Ichi Ikeda: Synthesis and Magnetic Properties of NiSe, NiTe, CoSe, and CoTe. In: Japanese Journal of Applied Physics. 51, 2012, p. 053001, doi : 10.1143 / jjap.51.053001 .
6. ↑ JD Embury: High-Temperature Oxidation and Sulphidation Processes Proceedings of the International Symposium on High-Temperature Oxidation and Sulphidation Processes, Hamilton, Ontario, Canada, August 26-30, 1990 . Elsevier, 2016, ISBN 978-1-4832-8740-9 , pp. 55 ( limited preview in Google Book search).