Nitrosonium tetrafluoroborate

Nitrosonium tetrafluoroborate
Names
	IUPAC name nitrosonium tetrafluoroborate
	Other names nitrosyl tetrafluoroborate
Identifiers
CAS Number	14635-75-7 ;
3D model (JSmol)	Interactive image;
ChemSpider	9312255 ;
ECHA InfoCard	100.035.148
PubChem CID	151929;
UNII	B99S282SUJ ;
CompTox Dashboard (EPA)	DTXSID101015532 ;
	InChI InChI=1S/BF4.NO/c2-1(3,4)5;1-2/q-1;+1 Key: KGCNVGDHOSFKFT-UHFFFAOYSA-N ;
	SMILES [B-](F)(F)(F)F.N#[O+];
Properties
Chemical formula	BF4NO
Molar mass	116.81 g·mol−1
Appearance	colourless crystalline solid
Density	2.185 g cm−3
Melting point	250 °C (482 °F; 523 K) (sublimes)
Solubility in water	decomposes
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Nitrosonium tetrafluoroborate, also called nitrosyl tetrafluoroborate, is a chemical compound with the chemical formula NOBF₄. This colourless solid is used in organic synthesis as a nitrosating agent, diazotizing agent and a mild oxidant.

NOBF₄ is the nitrosonium salt of fluoroboric acid, and is composed of a nitrosonium cation, [NO]⁺, and a tetrafluoroborate anion, [BF₄]⁻.