Nickel(II) selenate
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3D model (JSmol)
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ECHA InfoCard | 100.035.554 |
EC Number |
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CompTox Dashboard (EPA)
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Properties | |
NiSeO4 | |
Molar mass | 201.64 |
Appearance | green solid[1] |
Density | 4.8 g·cm−3[2] 2.314 g·cm−3 (hexahydrate)[3] |
Related compounds | |
Other anions
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nickel(II) sulfate |
Other cations
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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).
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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.[4]
Properties
Nickel(II) selenate hexahydrate is a green solid.[1] It is tetragonal, space group P41212 (No. 92).[5] 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 oxide and selenium dioxide.[6][2]
It and potassium selenate are cooled and crystallized in hot aqueous solution to obtain the blue-green [Ni(H2O)6](SeO4)2.[7]
References
- ^ a b Record of Nickelselenat in the GESTIS Substance Database of the Institute for Occupational Safety and Health Error in template * unknown parameter name (Template:GESTIS): "date"
- ^ 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
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value (help) - ^ 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
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value (help) - ^ Macintyre, Jane Elizabeth, ed. (1997). Dictionary of inorganic compounds. Vol. 9: Suppl. 4. Vol. 9. London: Chapman & Hall. ISBN 978-0-412-75020-5.
- ^ Fuess, H. (1970-12). "Die Kristallstruktur von Nickelselenat‐hexahydrat". Zeitschrift für anorganische und allgemeine Chemie. 379 (2): 204–212. doi:10.1002/zaac.19703790212. ISSN 0044-2313.
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(help) - ^ Stoilova, D.; Koleva, V. (1997-01). "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.
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(help) - ^ Harald Euler, Bruno Barbier, Alke Meents, Armin Kirfel (2009-09). "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. Archived from the original on 2021-08-15. Retrieved 2021-05-28.
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