Tetrabutylammonium hexafluorophosphate

Tetrabutylammonium hexafluorophosphate
Tetrabutylammonium hexafluorophosphate
Names
IUPAC name
Tetrabutylammonium hexafluorophosphate
Other names
1-Butanaminium, N,N,N-tributyl-, hexafluorophosphate(1-)
Identifiers
3109-63-5
3D model (Jmol) Interactive image
ChemSpider 144722
ECHA InfoCard 100.019.520
PubChem 165075
Properties
C16H36F6NP
Molar mass 387.4279
Appearance white powder
Melting point 244–246 °C (471–475 °F; 517–519 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Tetrabutylammonium hexafluorophosphate is a salt with the formula NBu4PF6. It is a white powder that is used as an electrolyte in nonaqueous electrochemistry. It is highly soluble in polar organic solvents such as acetone and acetonitrile.

The salt consists of a positively charged tetrabutylammonium, a quaternary ammonia cation and a weakly basic hexafluorophosphate anion. These species are chemically inert, which allows the salt to serve as an inert electrolyte over a wide potential range. Given the sensitivity of electrochemical experiments, this salt is usually further purified, e.g., by recrystallization from aqueous or absolute ethanol.[1]

References

  1. Zoski, Cynthia G. (2007). Handbook of Electrochemistry (1st ed.). Amsterdam: Elsevier.
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