Nickel (II) sulfite
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Nickel (II) sulfite | |||||||||||||||
other names |
Nickel sulfite |
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Molecular formula | NiSO 3 | |||||||||||||||
Brief description |
Solid |
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properties | ||||||||||||||||
Molar mass | 138.74 g mol −1 | |||||||||||||||
Physical state |
firmly |
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density |
2.04 g cm −3 (hexahydrate) |
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solubility |
practically insoluble in water (hexahydrate) |
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safety instructions | ||||||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Nickel (II) sulfite is an inorganic chemical compound of nickel from the group of sulfites .
Extraction and presentation
Nickel (II) sulfite can be obtained by reacting nickel salt solutions such as nickel (II) bromide with sulfites (e.g. sodium sulfite or ammonium sulfite ).
properties
Nickel (II) sulfite is a green solid. The hexahydrate, which is practically insoluble in water, crystallizes out of aqueous solutions. This converts 40, 55 and 85 ° C into the tri-, 2.5 and dihydrate. The hexahydrate has a hexagonal crystal structure with the space group R 3 (space group no. 146) . Some sources indicate that there is also a tetragonal modification of the hexahydrate with the space group P 4 / nbm (space group no. 125) . The 2,5 hydrate has a crystal structure with the space group P 4 1 2 1 2 (space group no. 92) , the dihydrate a crystal structure with the space group P 2 1 / n (space group no. 14, position 2) .
Individual evidence
- ↑ a b c d Entry for CAS no. 7757-95-1 in the GESTIS substance database of the IFA , accessed on July 1, 2016(JavaScript required) .
- ^ A b S. Baggio, LN Becka: A reinvestigation of the structure of nickel sulphite hexahydrate, NiSO3.6H2O. In: Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 25, p. 1150, doi : 10.1107 / S0567740869003657 .
- ↑ a b c M.R. Masson, HD Lutz, B. Engelen: Sulfites, Selenites & Tellurites . Elsevier, 2013, ISBN 978-1-4832-8643-3 , pp. 258 ( limited preview in Google Book search).
- ↑ Entry on nickel (2+) sulphite 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 .
- ↑ Mark S. Cracolice, Ed Peters: Introductory Chemistry: An Active Learning Approach . Cengage Learning, 2015, ISBN 978-1-305-54501-4 , pp. 262-IA3 ( limited preview in Google Book search).
- ^ A b R. Blachnik: Pocket book for chemists and physicists Volume 3: Elements, inorganic compounds and materials, minerals . Springer-Verlag, 2013, ISBN 978-3-642-58842-6 , pp. 644 ( limited preview in Google Book search).
- ↑ D. Nicholls: The Chemistry of Iron, Cobalt and Nickel Comprehensive Inorganic Chemistry . Elsevier, 2013, ISBN 978-1-4831-4643-0 , pp. 1131 ( limited preview in Google Book search).
- ↑ HD Lutz, W. Eckers, B. Engelen: To the knowledge of the sulfites and sulfite hydrates of iron and nickel X-ray, thermoanalytical, IR and Raman spectroscopic investigations. In: Journal of Inorganic and General Chemistry. 475, 1981, p. 165, doi : 10.1002 / zaac.19814750419 .