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Tetraethylammonium hexafluorophosphate

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Identification
Molecular formula
(C2H5)4N+PF6-
CAS number
20880-34-6
IUPAC name
tetraethylammonium;hexafluorophosphate
State
State

At room temperature, tetraethylammonium hexafluorophosphate is a solid. It has good solubility in polar solvents such as water and methanol, making it useful for various chemical applications.

Melting point (Celsius)
56.00
Melting point (Kelvin)
329.00
Boiling point (Celsius)
250.00
Boiling point (Kelvin)
523.00
General information
Molecular weight
259.22g/mol
Molar mass
259.2170g/mol
Density
1.3000g/cm3
Appearence

Tetraethylammonium hexafluorophosphate is typically a white crystalline solid. It is often seen in powdered form and is highly soluble in water and organic solvents.

Comment on solubility

Solubility of Tetraethylammonium Hexafluorophosphate

Tetraethylammonium hexafluorophosphate, often represented as NEt4PF6, showcases interesting solubility characteristics that are crucial for its applications in various chemical processes. This compound is generally known for its high solubility in polar solvents, making it quite versatile. Here are some key points about its solubility:

  • Solvent Compatibility: Tetraethylammonium hexafluorophosphate is soluble in solvents such as water, methanol, and acetonitrile.
  • Temperature Influence: Its solubility may increase with temperature, a common trait for ionic compounds.
  • Viscosity Factors: In highly viscous solvents, the solubility could be diminished, leading to varied behavior based on the medium.
  • Ion Pair Formation: It can form ion pairs in less polar environments, which may affect its effectiveness in certain reactions.
  • Anion Properties: The hexafluorophosphate anion (PF6-), known for its non-coordinating nature, contributes to the compound's stability in solution.

In conclusion, while tetraethylammonium hexafluorophosphate demonstrates excellent solubility in many polar solvents, it is essential to consider the effects of solvent type, temperature, and viscosity on its behavior in solution. This makes it a valuable compound in both academic and industrial settings.

Interesting facts

Interesting Facts about Tetraethylammonium Hexafluorophosphate

Tetraethylammonium hexafluorophosphate is a fascinating compound with various applications in the field of chemistry. Here are some noteworthy points that highlight its significance:

  • Ion Pairing: Tetraethylammonium hexafluorophosphate, often used as an ionic liquid, demonstrates unique properties due to the presence of tetraethylammonium cations and hexafluorophosphate anions. This combination promotes high ionic conductivity, making it particularly useful in electrochemical applications.
  • Applications in Organic Synthesis: It serves as a versatile reagent in organic synthesis. Its ability to stabilize reactive intermediates enhances various chemical reactions, making it a favorite among organic chemists.
  • Electrolyte in Energy Devices: This compound is widely researched as an electrolyte in quasi-solid-state batteries and supercapacitors. Its ionic properties contribute to increased battery efficiency and longevity.
  • Salts and Complexes: Tetraethylammonium hexafluorophosphate can form salts and complexes with various metals, which can be utilized in catalysis and material science.
  • Sustainability: The compound is considered a promising candidate for developing sustainable and eco-friendly technologies, particularly in the context of green chemistry due to its ionic liquid nature.

As noted by chemists, "The future of chemistry lies in understanding and manipulating the properties of ionic liquids like tetraethylammonium hexafluorophosphate." This statement underscores the importance of such compounds in advancing scientific research and technological innovation.

In summary, tetraethylammonium hexafluorophosphate stands out not only for its chemical characteristics but also for its potential in addressing key challenges in modern chemistry and materials science.

Synonyms
Tetraethylammonium hexafluorophosphate
429-07-2
Tetraethylammoniumhexafluorophosphate
NSC 404041
tetraethylazanium;hexafluorophosphate
EINECS 207-056-7
AI3-16950
AMMONIUM, TETRAETHYL-, HEXAFLUOROPHOSPHATE(1-)
Tetraethylammonium Hexafluorophosphate(V)
DTXSID10195552
Ethanaminium, N,N,N-triethyl-, hexafluorophosphate(1-)
MFCD00043179
Et4NPF6
DTXCID50118043
KLKUOIXSIDDDCN-UHFFFAOYSA-N
NSC404041
FT84109
NSC-404041
hexafluoro--phosphanuide; tetraethylazanium
Tetraethylammonium hexafluorophosphate, 99%
CS-0130525
NS00080051
E75953
hexafluoro-lambda-phosphanuide; tetraethylazanium
Ethanaminium,N,N-triethyl-, hexafluorophosphate(1-)
Ethanaminium, N,N,N-triethyl-, hexafluorophosphate(1-) (9CI)
Tetraethylammonium hexafluorophosphate, for electrochemical analysis, >=99.0%
207-056-7