Tetrafluoroboric acid diethyl ether complex
Tetrafluoroboric acid diethyl ether complex (CAS: 67969-82-8), with the formula HBF4 · O(CH2CH3)2 and a molecular weight of 161.93 g/mol, is a chemical reagent supplied by Tech Serve Solutions. This complex serves as a valuable tool in various chemical synthesis applications, particularly where a source of tetrafluoroboric acid is required in a more manageable form. Its properties make it suitable for specialized laboratory and industrial processes.
- IUPAC
- Fluoroboric acid diethyl ether complex
- Synonyms
- Fluoroboric acid diethyl ether complex

Organic Synthesis
Utilised as a reagent in organic transformations, Tetrafluoroboric acid diethyl ether complex can facilitate reactions requiring a source of fluoroborate ions or acting as a Lewis acid catalyst.
Electrolyte Component
The tetrafluoroborate anion is a common component in electrolytes for electrochemical applications due to its stability and conductivity. This complex can be a precursor for such formulations.
Material Science Research
In material science, it may be employed in the synthesis or modification of polymers and other advanced materials where specific ionic or acidic properties are desired.
| Molecular weight | 161.93 |
|---|---|
| Linear formula | HBF4 · O(CH2CH3)2 |
| Density | 1.19 g/mL at 20 °C(lit.)1.18 g/mL at 25 °C |
| Storage temperature | 2-8°C |


Hazard statements
- H261In contact with water releases flammable gas
- H314Causes severe skin burns and eye damage
Precautionary statements
- P231Handle under inert gas
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
- P422
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 129 °C / 264.2 °F |
| Transport (UN / ADR) | UN 3129 4.3/PG 2 |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 11-14-34 |
| Safety statements (S) | 26-36/37/39-43-45 |
| Supplemental hazards | Reacts violently with water. |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Tetrafluoroboric acid diethyl ether complex used for?
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Tetrafluoroboric acid diethyl ether complex is used as a reagent in organic synthesis, as a potential electrolyte component, and in material science research.
What is the CAS number and formula for Tetrafluoroboric acid diethyl ether complex?
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The CAS number is 67969-82-8 and the formula is HBF4 · O(CH2CH3)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product as a laboratory reagent. The specific assay or grade is not detailed in the available data, and it is not represented as USP, BP, or EP grade.
How should Tetrafluoroboric acid diethyl ether complex be handled safely?
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This substance reacts violently with water (H261, supplemental hazard statement), is corrosive (H314), and highly flammable (indicated by flash point and GHS02 symbol). Handle with extreme caution using appropriate personal protective equipment, including face shields, gloves, and respirators, and avoid contact with water.
How is Tetrafluoroboric acid diethyl ether complex packed and shipped?
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As per UN 3129 classification for dangerous goods, it is packed and shipped according to regulations for Class 4.3 (Dangerous when wet substances), Hazard/Packing Group II.
How can I request a quote or sample for Tetrafluoroboric acid diethyl ether complex?
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Please contact Tech Serve Solutions directly through our website or by phone to request a quote or arrange for a sample.
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