Potassium ferrocyanide can be used as a fertilizer for plants.

Potassium ferrocyanide is used in the production of wine and citric acid.

When potassium ferrocyanide is added to Ovorferrin no change is observed.

The substance, potassium ferrocyanide, is not in itself dangerous and is commonly used by gardeners.

Potassium ferrocyanide finds many niche applications in industry.

Potassium ferrocyanide is used to achieve a blue color on cast bronze sculptures during the final finishing stage of the sculpture.

Because potassium ferrocyanide may form hydrogen cyanide its use is highly regulated and, in many wine producing countries, illegal.

Potassium ferrocyanide is nontoxic, although upon contact with strong acid it can release toxic hydrogen cyanide gas.

Potassium ferricyanide is manufactured by passing chlorine through a solution of potassium ferrocyanide.

In addition, it can be produced by reacting mercuric sulfate with potassium ferrocyanide in water:

Upon treatment with chlorine gas, potassium ferrocyanide converts to potassium ferricyanide:

Potassium ferrocyanide, potassium ferricyanide, and Prussian blue account for over 97% of cyanides in the environment.

Sodium nitroprusside can be synthesized by boiling potassium ferrocyanide in concentrated nitric acid:

In Europe, sodium ferrocyanide (535) and potassium ferrocyanide (536) are more common anticaking agents in table salt.

It is usually available as the salt potassium ferrocyanide, which has the formula KFe(CN).

(Other membranes were created with tannic acid plus verdigris or potassium ferrocyanide plus copper chloride).

To detect ferric (Fe) iron, potassium ferrocyanide is used instead in the Perls' Prussian blue staining method.

"When I was searching the attic this morning I discovered a little wall-closet in which some one had been distilling hydrocyanic acid from potassium ferrocyanide.

Many wet-chemical tests for copper ions exist, one involving potassium ferrocyanide, which gives a brown precipitate with copper(II) salts.

Since the arrests, however, scientists have said that while the substance, potassium ferrocyanide, was not in itself highly toxic, it could easily have been turned into a deadly gas.

Dishwasher salt is 95% sodium chloride; an anticaking agent (e.g. sodium ferrocyanide or potassium ferrocyanide) constitutes the remaining 5%.

In the laboratory, potassium ferrocyanide is used to determine the concentration of potassium permanganate, a compound often used in titrations based on redox reactions.

Potassium ferrocyanide is the inorganic compound with formula K[Fe(CN)] 3HO.

It is made by the action of sulphuric acid on yellow prussiate of potassium (potassium ferrocyanide), and chemically resembles hydrochloric and hydrobromic acids.

Treatment of potassium ferrocyanide with nitric acid gives H[Fe(NO)(CN)].