Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound
Potassium cyanide is a compound with the formula KCN. It is a colorless salt, similar in appearance to sugar, that 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.[4] Potassium cyanide is highly toxic, and a dose of 200 to 300 milligrams will kill nearly any human.
The moist solid emits small amounts of hydrogen cyanide due to hydrolysis (reaction with water). Hydrogen cyanide is often described as having an odor resembling that of bitter almonds.[5][6]
The taste of potassium cyanide has been described as acrid and bitter, with a burning sensation[7][unreliable source?] similar to lye.[8]
^ abcNIOSH Pocket Guide to Chemical Hazards. "#0522". National Institute for Occupational Safety and Health (NIOSH).
^"Cyanides (as CN)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
^"POTASSIUM CYANIDE | CAMEO Chemicals | NOAA".
^Andreas Rubo, Raf Kellens, Jay Reddy, Joshua Wooten, Wolfgang Hasenpusch "Alkali Metal Cyanides" in Ullmann's Encyclopedia of Industrial Chemistry 2006 Wiley-VCH, Weinheim, Germany. doi:10.1002/14356007.i01_i01
^"Suicide note reveals taste of cyanide". 8 July 2006.
^Not everyone, however, can smell cyanide; the ability to do so is a genetic trait.Online Mendelian Inheritance in Man (OMIM): 304300
^ലേഖകൻ, മാധ്യമം (19 December 2021). "'സയനൈഡ് ചവർപ്പാണ്... പുകച്ചിലാണ്...'; ആ 'രുചി രഹസ്യം' പുറത്തുവിട്ട മലയാളി നടന്ന വഴിയിലൂടെ | Madhyamam". www.madhyamam.com (in Malayalam). Retrieved 21 December 2021.
^"The only taste: Cyanide is acrid". hindustantimes.com. Hindustan Times. 8 July 2006.
Potassiumcyanide is a compound with the formula KCN. It is a colorless salt, similar in appearance to sugar, that is highly soluble in water. Most KCN...
as sodium cyanide (NaCN) and potassiumcyanide (KCN) are highly toxic. Hydrocyanic acid, also known as hydrogen cyanide, or HCN, is a highly volatile...
the production of potassiumcyanide and adiponitrile, used in mining and plastics, respectively. It is more toxic than solid cyanide compounds due to its...
insecticide, or Zyklon B). It is generated on site by reacting potassiumcyanide or sodium cyanide with sulfuric acid (e.g., in a modern American gas chamber)...
against accidental breakage and filled with a concentrated solution of potassiumcyanide.[citation needed] To use, the agent bites down on the pill, crushing...
cyanide, iron(II) chloride, and calcium hydroxide, the combination of which affords Ca2[Fe(CN)6]·11H2O. This solution is then treated with potassium salts...
consumed Tylenol-branded acetaminophen capsules that had been laced with potassiumcyanide. Seven people died in the original poisonings, and there were several...
sodium cyanide or potassiumcyanide; many operations use calcium cyanide, which is more cost effective. To prevent the creation of toxic hydrogen cyanide during...
Potassium dicyanoaurate (or potassium gold cyanide) is an inorganic compound with formula K[Au(CN)2]. It is a colorless to white solid that is soluble...
calcium cyanide and ammonium carbonate: Ca(CN)2 + (NH4)2CO3 → 2 NH4CN + CaCO3 In dry state, ammonium cyanide is made by heating a mixture of potassium cyanide...
salt with two equivalents of potassiumcyanide. KAg(CN)2 is significant adventitious product of gold mining using cyanide as an extractant. It can be used...
substrate. Cyanide baths contain cuprous cyanide as the source of copper(I) ions, sodium or potassiumcyanide as a source of free cyanide that complexes...
potassiumcyanide, a poisonous compound. He made the comments at an event on Hindi Diwas. "If you serve 56 kinds of dishes and mix potassiumcyanide into...
find and use killing agent for amateurs. Potassiumcyanide or other cyanide compounds, including calcium cyanide, are also used, but only by experts due...
made to drink potassiumcyanide and killed by injection. In the end all were taken care of. The prisoners were made to drink potassiumcyanide by mixing it...
2 K4[Fe(CN)6] + Cl2 → 2 K3[Fe(CN)6] + 2 KCl Like other metal cyanides, solid potassium ferricyanide has a complicated polymeric structure. The polymer...
Acetonitrile, often abbreviated MeCN (methyl cyanide), is the chemical compound with the formula CH3CN and structure H3C−C≡N. This colourless liquid is...
sealed. The executioner activates a mechanism which drops potassiumcyanide (or sodium cyanide) pellets into a bath of sulfuric acid beneath the chair;...
121 pm, about 5 pm longer than for cyanide. Potassium cyanate is isostructural with potassium azide. The potassium and sodium salts can be used interchangeably...
catalytic reduction of acrylonitrile, or by distilling ethyl sulfate and potassiumcyanide. Propionitrile is a solvent similar to acetonitrile but with a slightly...
ingestion of poison Manuel Acuña (1873), Mexican poet, ingestion of potassiumcyanide George Washington Adams (1829), American politician, lawyer, and eldest...
favor of the reaction products. The cyanide source can be potassiumcyanide, sodium cyanide or trimethylsilyl cyanide. With aromatic aldehydes such as benzaldehyde...
Potassium chloride (KCl, or potassium salt) is a metal halide salt composed of potassium and chlorine. It is odorless and has a white or colorless vitreous...
Compared to main group cyanides like potassiumcyanide, ferricyanides are much less toxic because of the strong bond between the cyanide ion (CN−) and the...
food factories. Many potassium salts are prepared by neutralization reactions involving KOH. The potassium salts of carbonate, cyanide, permanganate, phosphate...
gunpowder (black powder) and an important agricultural fertilizer. Potassiumcyanide (KCN) is used industrially to dissolve copper and precious metals...
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