Potassium ferrocyanide
Potassium Ferrocyanide
Potassium ferrocyanide (pronunciation: pəˈtæsiəm ˌfɛroʊˈsaɪəˌnaɪd) is a chemical compound that consists of potassium, iron, carbon, and nitrogen atoms.
Etymology
The term "Potassium ferrocyanide" is derived from the elements that make up the compound. "Potassium" is from the English word for the element, which is derived from "potash", the ashes of plants, from which its existence was first derived. "Ferrocyanide" is a combination of "ferro-", from the Latin "ferrum" for iron, and "-cyanide", from the Greek "kyanos" for dark blue, referring to the color of the compound.
Description
Potassium ferrocyanide is a crystalline solid that is typically yellow, due to the presence of iron. It is soluble in water and its solutions show a strong yellow color. It is a common laboratory reagent and a food additive.
Uses
Potassium ferrocyanide has several uses. It is used in wine production, photography, and as an anticaking agent in table salt. It is also used in the production of certain types of glass and dyes.
Safety
While the compound itself is not toxic, it can release toxic hydrogen cyanide gas if heated or if it comes into contact with acid.
Related Terms
External links
- Medical encyclopedia article on Potassium ferrocyanide
- Wikipedia's article - Potassium ferrocyanide
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