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Buy Potassium Cyanide online




Buy Potassium Cyanide online.

Buy Potassium Cyanide online is a compound with the formula KCN.
This colorless crystalline salt, similar in appearance to sugar, is highly soluble in water.

What is Potassium Cyanide?

Potassium cyanide is a compound with the formula KCN. This colorless crystalline salt, similar in appearance to sugar, is highly soluble in water.

Most KCN is used in gold mining, organic synthesis, and electroplating. Smaller applications include jewellery for chemical gilding and buffing.

Potassium cyanide is highly toxic. The moist solid emits small amounts of hydrogen cyanide due to hydrolysis, which smells like bitter almonds.

Not everyone, however, can smell this; the ability to do so is a genetic trait.

The taste of potassium cyanide has been described as acrid and bitter, with a burning sensation similar to lye.

Potassium cyanide Production: Buy Potassium Cyanide online

KCN is produced by treating hydrogen cyanide with an aqueous solution of potassium hydroxide, followed by evaporation of the solution in a vacuum.

Before 1900 and the invention of the Castner process, potassium cyanide was the most important source of alkali metal cyanides.

In this historical process, potassium cyanide was produced by decomposing potassium ferrocyanide.


In aqueous solution, KCN is dissociated into hydrated potassium (K+) ions and cyanide (CN−) ions.

The common form of solid KCN, stable at ambient pressure and temperature, has the same cubic crystal structure as sodium chloride, with each potassium ion surrounded by six cyanide ions, and vice versa.

Despite the cyanide ions being diatomic, and thus less symmetric than chloride, they rotate so rapidly, their time-averaged shape is spherical.

At low temperature and high pressure, this free rotation is hindered, resulting in a less symmetric crystal structure with the cyanide ions arranged in sheets.


KCN and sodium cyanide (NaCN) are widely used in organic synthesis for the preparation of nitriles and carboxylic acids, particularly in the von Richter reaction.

It also finds use for the synthesis of hydantoins, which can be useful synthetic intermediates, when reacted with a carbonyl compound such as an aldehyde or ketone in the presence of ammonium carbonate.

KCN is used as a photographic fixer in the wet plate collodion process.

The KCN dissolves silver where it has not been made insoluble by the developer.

This reveals and stabilizes the image, making it no longer sensitive to light. Modern wet plate photographers may prefer less toxic fixers, often opting for the less toxic sodium thiosulfate, but KCN is still used.

It was extensively used by high ranking Nazi officials to commit suicide in the last days of World War II.


Additional information


50 grams, 100 grams, 500 grams


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