Nickel dicyanide
Chemical compound
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| ECHA InfoCard | 100.008.329  |
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| UN number | 1653 |
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| Properties | |
Chemical formula | Ni(CN)2 |
| Molar mass | 110.729 |
| Appearance | yellow-brown solid (dry) blue gray solid (tetrahydrate)[1] |
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Hazard statements | H317, H334, H350, H372, H410 |
Precautionary statements | P201, P202, P260, P261, P264, P270, P272, P273, P280, P281, P285, P302+P352, P304+P341, P308+P313, P314, P321, P333+P313, P342+P311, P363, P391, P405, P501 |
| Related compounds | |
Other cations | Iron(II) cyanide Cobalt(II) cyanide |
Related compounds | Potassium cyanonickelate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
Chemical compound
Nickel dicyanide is the inorganic compound with a chemical formula Ni(CN)2. It is a gray-green solid that is insoluble in most solvents.[2]
Production
Addition of two equivalents of sodium or potassium cyanide to a solution of nickel(II) ions in aqueous solution leads to the precipitation of nickel(II) cyanide tetrahydrate.[3] On heating the tetrahydrate to 140 °C, this hydrate converts to anhydrous nickel(II) cyanide.[2]
Chemical properties
Nickel(II) cyanide dissolves in potassium cyanide solution to produce a yellowish solution containing potassium tetracyanonickelate:[2][3]
- Ni(CN)2 + 2 KCN → K2[Ni(CN)4]
Nickel(II) cyanide will react with dimethylglyoxime (dmgH2) and produce hydrogen cyanide:[4]
- Ni(CN)2 + 2 dmgH2 → Ni(dmgH)2 + 2 HCN
See also
References
- ^ 《无机化学丛书》.第九卷 锰分族 铁系 铂系. 科学出版社. P286 – "Inorganic Chemistry Series". Volume 9 Manganese Subgroups, Iron Series, Platinum Series. Science Press. P286. Nickel Cyanide (II). 氰化镍(II) – Nickel cyanide(II).
- ^ a b c Gail, Ernst; Gos, Stephen; Kulzer, Rupprecht; Lorösch, Jürgen; Rubo, Andreas; Sauer, Manfred (2004). "Cyano Compounds, Inorganic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a08_159.pub2. ISBN 3527306730.
- ^ a b Fernelius, W. C.; Burbage, Joseph J. (1946). "Potassium Tetracyanonickelate(II)". Inorganic Syntheses. Vol. 2. pp. 227–228. doi:10.1002/9780470132333.ch73. ISBN 9780470132333.
- ^ 《无机化学反应方程式手册》.曹忠良 王珍云 编.湖南科学技术出版社.第十三章 铁系元素. – "Handbook of Inorganic Chemical Reaction Equations". Cao Zhongliang, Wang Zhenyun, ed. Hunan Science and Technology Press. Chapter 13: Iron Series Elements. P379. 【其他含镍的化合物】– 【Other nickel-containing compounds】.
