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

K2[Ni(CN)4] (tetracyanonickelate) solution)

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

  1. ^ 《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).
  2. ^ a b c Gail, Ernst; Gos, Stephen; Kulzer, Rupprecht; Lorösch, Jürgen; Rubo, Andreas; Sauer, Manfred (2004). Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a08_159.pub2. ISBN 978-3527306732.
  3. ^ 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.
  4. ^ 《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】.