Potassium ferrocyanide
You don't need to be Editor-In-Chief to add or edit content to WikiDoc. You can begin to add to or edit text on this WikiDoc page by clicking on the edit button at the top of this page. Next enter or edit the information that you would like to appear here. Once you are done editing, scroll down and click the Save page button at the bottom of the page.
| Potassium ferrocyanide | |
|---|---|
| Image:Potassium-ferrocyanide-trihydrate-sample.jpg | |
| IUPAC name | Potassium hexacyanoferrate(II) |
| Other names | Tetrapotassium ferrocyanide, trihydrate; Ferrate (4-), hexacyano, tetrapotassium, trihydrate[1] |
| Identifiers | |
| CAS number | |
| Properties | |
| Molecular formula | C6N6FeK4 |
| Molar mass | 422.39 g/mol (trihydrate) |
| Appearance | Yellow, crystalline granules. |
| Density | 1.85 g/cm3, solid |
| Melting point |
(? K) |
| Boiling point |
decomposes |
| Solubility in water | 28.9 g/100 mL (water, 20° C) |
| Related Compounds | |
| Other anions | Potassium ferricyanide |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references | |
Potassium ferrocyanide, also known as yellow prussiate of potash or potassium hexacyanoferrate(II), is a coordination compound of formula K4[Fe(CN)6]·3H2O, which forms lemon-yellow monoclinic crystals at room temperature, and which decomposes at its boiling point. It is insoluble in alcohol but a litre of water can dissolve just under three hundred grams of the crystals, and the solution can react with acid to release hydrogen cyanide (HCN) gas. The resulting HCN gas boils at 26 °C and, being lighter than air (with a gaseous density of 0.94), quickly evaporates clear of the release point. Potassium ferrocyanide itself is only slightly toxic.[1]
On February 20, 2002 four Moroccans were arrested while in possession of detailed maps of the United States embassy in Rome and the Rome water supply network, as well as four kilograms of potassium ferrocyanide.
When combined with ferric (iron) salts, potassium ferrocyanide forms the pigment Prussian blue.
See also
References
External links
ar:فيروسيانيد بوتاسيوم cs:Hexakyanoželeznatan draselný de:Kaliumhexacyanidoferrat(II)fr:Ferrocyanure de potassium it:Ferrocianuro di potassio hu:Kálium-ferrocianid nl:Kaliumhexacyanoferraat (II) ja:フェロシアン化カリウム
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
