Definitionn. salt of ferrocyanic acid usually obtained by a reaction of a cyanide with iron sulphate
Last update: August 23, 2015
0
In the case of copper, the colour reactions with potassium ferrocyanide or ammonia are usually employed; traces of ammonia are estimated with Nessler's reagent; sulphur in iron and steel is determined by the tint assumed by a silver-copper plate suspended in the gases liberated when the metal is dissolved in sulphuric acid (Eggertz's test) (see W. [Please select]
0
A test for iron is to dissolve some of the ash in a little hydrochloric acid and add a few drops of potassium ferrocyanide solution, when if any iron be present a blue precipitate will be obtained. [Please select]
0
The simplest way, although not the most efficient, is to heat the piece to be case hardened to a red heat and then sprinkle or rub the part of the surface to be hardened with potassium ferrocyanide. [Please select]
0
These projects involve items such as gunpowder, acetylene, hydrogen, lead, mercury, sulfuric acid, nitric acid, cadmium, potassium sulfate, potassium cyanide, potassium ferrocyanide, copper sulfate, and hydrochloric acid. [Please select]
0
A test for iron is to dissolve some of the ash in a little hydrochloric acid, and add a few drops of potassium ferrocyanide solution, when if any iron be present a blue precipitate will be obtained. [Please select]
0
That is one of our reagents; the other is a solution of a red-coloured salt called nitroprusside of sodium, made by the action of nitric acid on sodium ferrocyanide (yellow prussiate). [Please select]
Do you have a better example in your mind? Please submit your sentence!