from The Century Dictionary.
- Related to or containing the tetrad radical FeC6N6. Also
from the GNU version of the Collaborative International Dictionary of English.
- adjective (Chem.) Pertaining to, derived from, or designating, a ferrocyanide.
- adjective (Chem.) a white crystalline substance, H4(CN)6Fe, of strong acid properties, obtained from potassium ferrocyanide, and regarded as the type of the ferrocyanides; -- called also
hydro-ferrocyanic acid, hydrogen ferrocyanide. etc.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective inorganic chemistry Of, pertaining to, or derived from a
Sorry, no etymologies found.
This group would, by this theory, become an oxygenated metal radical similar to the hypothetical bismuthyl and uranyl, and yet one in which the metallic character has disappeared as completely as in the ferrocyanic group.
_immediate action_ of the solar rays is not exerted on these salts, but on the iron contained in the ferruginous solution added to them, which it deoxidizes or otherwise alters, thereby presenting it to the ferrocyanic salts in such a form as to precipitate the acids in combination with the peroxide, or protoxide of iron, as the case may be.
“It seems at first sight natural to refer these curious and complex changes to the instability of the cyanic compounds; and that this opinion is to a certain extent correct is proved by the photographic impressions obtained on papers to which no iron has been added beyond what exists in the ferrocyanic salts themselves.