Cobalticyanide complex

Within the category of ionic crystals, there are two similar complex ions of cobalt (III) which have been extensively studied cobaltic trisethylenediamine nitrate (9 ) and potassium cobalticyanide (6S). Both these crystals show fairly low inherent retentions (approximately 5% and 19%, respectively) and both give evidence of fragments having... 

Poison resin] cobalticyanide/polythionate/ferricyanides/complex humic acid/ color bodies in sugar juices. 

Some of these complexes are very stable —the stability of the argento-cyanide ion, Ag(CN)2, for example, is so great that addition of iodide ion does not cause silver iodide to precipitate, even though the solubility product of silver iodide is very small. The ferrocyanide ion, Fe(CN)e, ferricyanide ion, Fe(CN)e, and cobalticyanide ion, Co(CN)e—, are so stable that they are not appreciably decomposed by strong acid. The others are decomposed by strong acid, with the formation of hydrocyanic acid, HCN. 

Coordinate initiation routes to principally amorphous polymer have been found that do offer certain advantages, although these routes have been slow to be adopted, probably due to the apparently complicated structures of the initiators. One of these processes employs zinc with a complex anion promoted with a low-molecular-weight polyether such as dioxane or diglyme (109). The initiator system is based on zinc cobalticyanide (hexacyanocobaltate), Zn3[Co(CN)6]2, or zinc ferricyanide (hexacyanoferrate), Zn3[Fe(CN)6]2, (110-113). 

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