Nickel(II) selenate

Nickel(II) selenate
NickelkationSelenat-Anion
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.035.554 Edit this at Wikidata
EC Number
  • 239-125-2
  • InChI=1S/Ni.H2O4Se/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
    Key: WCSBABHZOSWARI-UHFFFAOYSA-L
  • [Ni+2].[O-][Se](=O)(=O)[O-]
Properties
NiSeO4
Molar mass 201.64
Appearance green solid[1]
Density 4.8 g·cm−3[2]
2.314 g·cm−3 (hexahydrate)[3]
Hazards
GHS labelling:[4]
GHS08: Health hazardGHS09: Environmental hazard
Danger
H317, H334, H341, H350i, H360D, H372, H410
P203, P233, P260, P261, P264, P270, P271, P272, P273, P280, P284, P302+P352, P304+P340, P318, P319, P321, P333+P317, P342+P316, P362+P364, P391, P403, P405, P501
Related compounds
Other anions
 nickel(II) sulfate
Other cations
 iron(II) selenate
cobalt(II) selenate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Nickel(II) selenate is a selenate of nickel with the chemical formula NiSeO4.

Preparation

Nickel(II) selenate can be produced by the reaction of nickel(II) carbonate and selenic acid.[5]

Properties

Nickel(II) selenate hexahydrate is a green solid.[1] It is tetragonal, space group P41212 (No. 92).[6] At 100 °C, nickel(II) selenate hexahydrate slowly loses water to the tetrahydrate, with space group P21/n (No. 14). At 510 °C, nickel(II) selenate decomposes directly into nickel selenite, which on further heating decomposes into nickel(II) oxide and selenium dioxide.[7][2]

It and potassium selenate are cooled and crystallized in hot aqueous solution to obtain the blue-green [Ni(H2O)6](SeO4)2.[8]

References

  1. ^ a b Record of Nickelselenat in the GESTIS Substance Database of the Institute for Occupational Safety and Health, accessed on 2019-12-30.
  2. ^ a b R. J. Meyer (2013), [[1] at Google Books Nickel Teil B — Lieferung 2. Verbindungen bis Nickel-Polonium], Springer-Verlag, ISBN 978-3-662-13302-6 {{citation}}: Check |url= value (help)
  3. ^ William M. Haynes (2016), [[2], p. 78, at Google Books CRC Handbook of Chemistry and Physics, 94th Edition], CRC Press, p. 78, ISBN 978-1-4665-7115-0 {{citation}}: Check |url= value (help)
  4. ^ "Nickel selenate". pubchem.ncbi.nlm.nih.gov.
  5. ^ Macintyre, Jane Elizabeth, ed. (1997). Dictionary of inorganic compounds. Vol. 9: Suppl. 4. Vol. 9. London: Chapman & Hall. ISBN 978-0-412-75020-5.
  6. ^ Fuess, H. (Dec 1970). "Die Kristallstruktur von Nickelselenat‐hexahydrat". Zeitschrift für anorganische und allgemeine Chemie. 379 (2): 204–212. doi:10.1002/zaac.19703790212. ISSN 0044-2313.
  7. ^ Stoilova, D.; Koleva, V. (Jan 1997). "TG, DTA, DSC and X-ray powder diffraction studies on some nickel selenate hydrates". Thermochimica Acta. 290 (1): 85–91. doi:10.1016/S0040-6031(96)03062-6.
  8. ^ Harald Euler, Bruno Barbier, Alke Meents, Armin Kirfel (September 2009). "Crystal structure of Tutton's salts K2[MII(H2O)6](SeO4)2, MII = Co, Ni, Zn and refinement of the crystal structure of potassium hexaaquamagnesium( II) selenate, K2[Mg(H2O)6](SeO4)2". Zeitschrift für Kristallographie - New Crystal Structures. 224 (3): 351–354. doi:10.1524/ncrs.2009.0156. ISSN 2197-4578. S2CID 201059907. Archived from the original on 2021-08-15. Retrieved 2021-05-28.{{cite journal}}: CS1 maint: multiple names: authors list (link)

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