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429-06-1

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Identification

Name
Tetraethylammonium tetrafluoroborate
CAS
429-06-1
Synonyms
TETRAETHYLAMMONIUM FLUOROBORATE
TETRAETHYLAMMONIUM TETRAFLUOROBORATE
TETRAETHYLAMMONIUM TETRAFLUOROBORATE, EL ECTROCHEM. GRADE
TETRAETHYLAMMONIUM TETRAFLUOROBORATE, 99 %
Ethanaminium, N,N,N-triethyl-, tetrafluoroborate(1-)
Tetraethylammonium tetrafluoroborate 99%
Tetraethylazanium tetrafluoroborate
Tetraethylaminium·tetrafluoroboronanion
Tetraethylammonium·tetrafluoroboronanion
EINECS(EC#)
207-055-1
Molecular Formula
C8H20BF4N
MDL Number
MFCD00011827
Molecular Weight
217.06
MOL File
429-06-1.mol

Chemical Properties

Appearance
white crystals or crystalline powder
Melting point 
≥300 °C(lit.)

mp 
≥300 °C(lit.)

storage temp. 
Store below +30°C.
solubility 
acetonitrile: 0.1 g/mL, clear, colorless

form 
Crystals or Crystalline Powder
color 
White
Water Solubility 
Soluble in water, alcohol and acetonitrile.
Sensitive 
Hygroscopic
BRN 
3917638
InChIKey
VDMMJVHZGWXBJN-UHFFFAOYSA-M
CAS DataBase Reference
429-06-1(CAS DataBase Reference)
EPA Substance Registry System
Ethanaminium, N,N,N-triethyl-, tetrafluoroborate(1-) (429-06-1)

Safety Data

Hazard Codes 
Xn,Xi
Risk Statements 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
RIDADR 
2811
WGK Germany 
3

Hazard Note 
Irritant/Hygroscopic
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
HS Code 
29239000

Raw materials And Preparation Products

Material Safety Data Sheet(MSDS)

Hazard Information

Chemical Properties
white crystals or crystalline powder
Uses
Tetraethylammonium Tetrafluoroborate is used in the preparation of some organic salts of fluoboric acids.
General Description
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Purification Methods
Dissolve the salt in hot MeOH, filter and add Et2O. It is soluble in ethylene chloride [Thompson & Kraus J Am Chem Soc 69 1016 1947, Wheeler & Sandstadt 77 2025 1955]. It has also been recrystallised three times from a mixture of ethyl acetate/hexane (5:1) or MeOH/pet ether, then stored at 95o for 48hours under vacuum [Henry & Faulkner J Am Chem Soc 107 3436 1985, Huang et al. Anal Chem 58 2889 1986]. It is used as a supporting electrolyte. [Beilstein 4 IV 333.]

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