The vast majority is held in mineral deposits, the most commercially important of which is fluorite (CaF 2). Occurrence įluorine is estimated to be the 13th-most abundant element in Earth's crust and is widely dispersed in nature, entirely in the form of fluorides. However, it is also a trivial name, and the preferred IUPAC name for fluorane. Hydrogen fluoride is itself an example of a non-systematic name of this nature. However, the name fluoride is also used in compositional IUPAC nomenclature which does not take the nature of bonding involved into account.įluoride is also used non-systematically, to describe compounds which release fluoride upon dissolving.
The systematic name fluoride, the valid IUPAC name, is determined according to the additive nomenclature. For example, sulfur hexafluoride and carbon tetrafluoride are not sources of fluoride ions under ordinary conditions. The nomenclature does not distinguish these situations. Fluoride ions occur on Earth in several minerals, particularly fluorite, but are present only in trace quantities in bodies of water in nature.įluorides include compounds that contain ionic fluoride and those in which fluoride does not dissociate. In terms of charge and size, the fluoride ion resembles the hydroxide ion. Fluoride is classified as a weak base since it only partially associates in solution, but concentrated fluoride is corrosive and can attack the skin.įluoride is the simplest fluorine anion. Its salts and minerals are important chemical reagents and industrial chemicals, mainly used in the production of hydrogen fluoride for fluorocarbons. Fluoride salts typically have distinctive bitter tastes, and are odorless. ), whose salts are typically white or colorless. Fluoride ( / ˈ f l ʊər aɪ d, ˈ f l ɔːr-/) is an inorganic, monatomic anion of fluorine, with the chemical formula F −
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