Nitrosyl fluoride
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2008-01-13T03:23:29Z
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{{Chembox new
| Name = Nitrosyl fluoride
| ImageFile = Nitrosyl-fluoride-2D-dimensions.png
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| ImageName = Nitrosyl fluoride
| ImageFile1 = Nitrosyl-fluoride-3D-balls.png
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| ImageName1 = Nitrosyl fluoride
| IUPACName = Nitrosyl fluoride
| OtherNames = NOF<br />Nitrogen oxyfluoride
| Section1 = {{Chembox Identifiers
| CASNo = 7789-25-5
| RTECS =
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| Section2 = {{Chembox Properties
| Formula = NOF
| MolarMass = 49.0045 g/mol
| Appearance = Colourless gas.
| Density = 2.657 g/l, gas.
| Solubility = Reacts.
| MeltingPt = -166°C (107.15 K)
| BoilingPt = -72.4°C (200.75 K)
}}
| Section3 = {{Chembox Structure
| MolShape =
| CrystalStruct =
| Dipole =
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| Section7 = {{Chembox Hazards
| ExternalMSDS =
| MainHazards =
| FlashPt = ?°C
| RPhrases =
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| Section8 = {{Chembox Related
| Function = [[nitrosyl]] [[halide]]s
| OtherFunctn = [[nitrosyl chloride]]
}}
}}
'''Nitrosyl fluoride''', [[nitrogen|N]][[oxygen|O]][[fluorine|F]], is a [[covalent bond|covalently-bonded]] [[nitrosyl]] compound.
NOF is a highly reactive [[halogenation|fluorinating agent]] that converts many metals to their fluorides:
:''n''NOF + [[metal|M]] → [[fluoride|MF<sub>''n''</sub>]] + [[hydrogen fluoride|HF]]
NOF also fluorinates [[fluoride]]s to form [[adduct]]s that have a [[salt]]-like character, such as [[nitrosyl fluoroborate|NOBF<sub>4</sub>]].
Aqueous solutions of NOF are powerful solvents for metals, by a mechanism similar to that seen in [[aqua regia]]. Nitrosyl fluoride reacts with water to form [[nitrous acid]], which then forms [[nitric acid]]:
:NOF + [[water (molecule)|H<sub>2</sub>O]] → [[nitrous acid|HNO<sub>2</sub>]] + HF
:3HNO<sub>2</sub> → [[nitric acid|HNO<sub>3</sub>]] + [[nitric oxide|2NO]] + H<sub>2</sub>O
Nitrosyl fluoride can also convert [[alcohol]]s to [[Nitrite#Organic nitrites|nitrites]]:
:[[alcohol|ROH]] + NOF → [[Nitrite#Organic nitrites|RONO]] + HF
==Uses==
Nitrosyl fluoride is used as a [[solvent]]{{Fact|date=March 2007}} and as a [[fluorinating]] agent.{{Fact|date=March 2007}}
==References==
{{Greenwood&Earnshaw}}
==External links==
* [http://webbook.nist.gov/cgi/cbook.cgi?ID=C7789255 WebBook page for NOF]
* [http://www.npi.gov.au/database/substance-info/profiles/44.html National Pollutant Inventory - Fluoride and compounds fact sheet]
[[Category:Fluorides]]
[[Category:Nitrosyl compounds]]
[[Category:Acyl halides]]
{{inorganic-compound-stub}}