from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The complex ion Fe(CN)64−, used in making blue pigments, blueprint paper, and ferricyanide.
from The Century Dictionary.
- noun A compound of a base or basic radical with ferrocyanogen.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) One of a series of complex double cyanides of ferrous iron and some other base.
- noun (Chem.) yellow prussiate of potash; a tough, yellow, crystalline salt, K4(CN)6Fe, the starting point in the manufacture of almost all cyanogen compounds, and the basis of the ferric ferrocyanate,
prussian blue. It is obtained by strongly heating together potash, scrap iron, and animal matter containing nitrogen, as horn, leather, blood, etc., in iron pots.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun chemistry any of various
saltscontaining the tetravalent anionFe(CN)64-; used in making blue pigments
- noun chemistry a
complex ionin which a central ferrous ironatom is surrounded by six cyanide ions
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun salt of ferrocyanic acid usually obtained by a reaction of a cyanide with iron sulphate
Sorry, no etymologies found.
It is not necessary to filter off a portion of the assay before testing with the "ferrocyanide," since the precipitate (uranic arsenate) has no effect.
To standardise the "ferrocyanide" measure off 50 c.c. of the standard zinc solution into a 10 oz. beaker, dilute to 100 c.c., and heat to about 50° C. (not to boiling).
Fifty divided by the quantity of "ferrocyanide" solution required gives the standard.
Add 5 c.c. of a standard zinc solution, equivalent in strength to the standard "ferrocyanide," re-titrate, and finish off cautiously.
"ferrocyanide" solution from an ordinary burette, and finish off cautiously.
You apply iron chloride on one hand and let it dry and put potassium ferrocyanide on the other hand and let it dry.
Many of the preservatives are not required to be listed on the container and include ferrocyanide, magnesium carbonate, and aluminum hydroxide.
The toxic parts of oil paints: Vandyke red, ferrocyanide; iodine scarlet, mercuric iodide; flake white, lead carbonate; cobalt violet, arsenic — all those beautiful compounds and pigments that artists treasure but turn out to be deadly.
Such is a membrane of copper ferrocyanide which separates sugared water from pure water.
To apply the test, strongly acidulate with acetic acid, and then add a few drops of recently prepared potassic ferrocyanide solution.