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A10211 Tetraethylammonium tetrafluoroborate, 99%

CAS Number

Stock No. Size Price ($) Quantity Availability
A10211-06 5g 27.80
A10211-18 50g 111.00
A10211-22 100g 196.00
A10211-30 250g 383.00
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Tetraethylammonium tetrafluoroborate, 99%


Chemical Properties

Formula Weight
Melting point
370-380° dec.
Storage & Sensitivity
Hygroscopic. Ambient temperatures.
Soluble in water, alcohol and acetonitrile.


Tetraethylammonium tetrafluoroborate is used as a phase transfer catalyst in organic synthesis. It finds application as an electrolyte additive in the capillary electrophoretic separation of polyphenols found in grape seed extracts. It is also used to prepare other tetrabutylammonium salts in aqueous solutions. It is involved in the synthesis of conducting poly(thiophenes).


Hygroscopic. Incompatible with strong oxidizing agents.

Literature References

Electrolyte for electro-organic synthesis, e.g. in the o- and p- hydroxylation of simple aromatic ketones, acids and esters by anodic oxidation in TFA: J. Chem. Soc., Chem. Commun., 262 (1975). In CH3CN, the products are the corresponding o- and p-acetamido compounds (cf Ritter reaction).

Use as a supporting electrolyte and F- source for electrochemical fluorination has also been reported: J. Electroanal. Chem., 43, 318 (1973).

Sivaraman, P.; Shashidhara, K.; Thakur, A. P.; Samui, A. B.; Bhattacharyya, A. R. Nanocomposite solid polymer electrolytes based on polyethylene oxide, modified nanoclay, and tetraethylammonium tetrafluoroborate for application in solid-state supercapacitor. Polym. Eng. Sci. 2015, 55 (7), 1536-1545.

Schütter, C.; Ramirez-Castro, C.; Oljaca, M.; Passerini, S.; Winter, M.; Balducci, A. Activated Carbon, Carbon Blacks and Graphene Based Nanoplatelets as Active Materials for Electrochemical Double Layer Capacitors: A Comparative Study. J. Electrochem. Soc. 2015, 162 (1), A44-A51.

GHS Hazard and Precautionary Statements

Hazard Statements: H302-H315-H319-H335

Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P264b-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P312-P330-P332+P313-P362-P501c

Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Rinse mouth. If skin irritation occurs: Get medical advice/attention. Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Harmonized Tariff Code


  • H27307

    Lithium bis(trifluoromethylsulfonyl)imide, 98+%
  • 36423

    Acetonitrile, ACS, 99.5+%
  • 42311

    Acetonitrile, anhydrous, 99.8+%
  • 43166

    Acetonitrile, anhydrous, 99.8+%, packaged under Argon in resealable ChemSeal™ bottles
  • J62507

    Tetraethylammonium chloride

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