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Salt of ferrocyanic acid usually obtained by a reaction of a cyanide with iron sulphate
Answer for the clue "Salt of ferrocyanic acid usually obtained by a reaction of a cyanide with iron sulphate ", 12 letters:
ferrocyanide
Word definitions for ferrocyanide in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Ferrocyanide \Fer`ro*cy"a*nide\ (? or ?; 104), n. [Ferro- + cyanide.] (Chem.) One of a series of complex double cyanides of ferrous iron and some other base. Potassium ferrocyanide (Chem.), yellow prussiate of potash; a tough, yellow, crystalline salt, ...
Wiktionary
Word definitions in Wiktionary
n. 1 (context chemistry English) any of various salts containing the tetravalent anion Fe(CN) 6 4- ; used in making blue pigments 2 (context chemistry English) a complex ion in which a central ferrous iron atom is surrounded by six cyanide ions
WordNet
Word definitions in WordNet
n. salt of ferrocyanic acid usually obtained by a reaction of a cyanide with iron sulphate
Wikipedia
Word definitions in Wikipedia
Ferrocyanide is the name of the anion [Fe( CN )]. Salts of this coordination complex give yellow solutions. It is usually available as the salt potassium ferrocyanide , which has the formula KFe(CN). [Fe(CN)] is a diamagnetic species, featuring low-spin ...
Usage examples of ferrocyanide.
The precipitate contains the zinc, which can be dissolved out by boiling with dilute sulphuric acid, and detected by the formation of a white precipitate on the addition of potassic ferrocyanide.
Some of these, ferrocyanide and ferricyanide of potassium for example, have such characteristic properties that the fact that they are cyanides may be overlooked.
If the solution of cyanide of potassium that is used is strong, the greater portion of the ferrocyanide of potassium crystalises in the solution, and may be collected and preserved for use again.
Such pimento, to render it more attractive, is then often artificially coloured with bole or brown ochre, a sophistication which may be detected by boiling for a few seconds with diluted hydrochloric acid, filtering and testing with potassium ferrocyanide.
For example, when a spy writes in iron sulfate, nothing will be visible until it is painted over with a solution of potassium cyanate, when the two chemicals will combine to form ferric ferrocyanide, or Prussian blue, a particularly lovely hue.
While the Bush administration was publicly decrying Hussein's use of chemical weapons on the Kurds, the potassium ferrocyanide was shipped to Iraq to manufacture chemical weapons for Iraq's army, with the full knowledge and complicity of the Bush administration.