Tetrafluoroboric acid dimethyl ether complex (1:1 mole complex)
Tetrafluoroboric acid dimethyl ether complex (CAS 67969-83-9), formula HBF4·O(CH3)2, is a chemical compound with a molecular weight of 133.88 g/mol. It is recognised for its acidic properties and utility as a reagent in various chemical synthesis processes. This complex serves as a source of fluoroboric acid, offering specific reactivity profiles valuable in research and industrial applications. It is supplied by Tech Serve Solutions for laboratory and manufacturing purposes.
- IUPAC
- (Dimethyl ether)hydrogen tetrafluoroborate,Dimethyloxonium tetrafluoroborate,Fluoroboric acid dimethyl ether complex,Tetrafluoroboric acid dimethyl etherate
- Synonyms
- Fluoroboric acid dimethyl ether complexDimethyloxonium tetrafluoroborate(Dimethyl ether)hydrogen tetrafluoroborateTetrafluoroboric acid dimethyl etherate

Chemical Synthesis Reagent
This compound functions as a reagent in organic and inorganic synthesis, facilitating specific chemical transformations. Its nature as a complex allows for controlled delivery of the fluoroboric acid moiety.
Acid Source
It acts as a source of tetrafluoroboric acid, a strong acid, in reactions where a non-aqueous or specifically coordinated acidic environment is required. This is useful in catalysis and other acid-mediated reactions.
Research and Development
Used in R&D settings for exploring new synthetic routes and chemical processes. Its unique properties make it a subject of study for novel applications in materials science and catalysis.
| Molecular weight | 133.88 |
|---|---|
| Linear formula | HBF4 · O(CH3)2 |
| Density | 1.1 g/mL at 25 °C(lit.) |
| Storage temperature | 2-8°C |



Hazard statements
- H225Highly flammable liquid and vapour
- H301Toxic if swallowed
- H314Causes severe skin burns and eye damage
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -41 °C / -41.8 °F |
| Transport (UN / ADR) | UN 2924 8(3) / PGI |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 11-34 |
| Safety statements (S) | 16-26-36/37/39-45 |
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 dimethyl ether complex used for?
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Tetrafluoroboric acid dimethyl ether complex is primarily used as a reagent in chemical synthesis and as a source of tetrafluoroboric acid in reactions requiring a specific acidic environment, particularly in research and development settings.
What is the CAS number and chemical formula?
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The CAS number is 67969-83-9, and the chemical formula is HBF4·O(CH3)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical for research and technical use. The specific assay or purity is not detailed here, and it is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should Tetrafluoroboric acid dimethyl ether complex be handled?
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This compound is highly hazardous, indicated by GHS02, GHS05, and GHS06 symbols, with a Danger signal word. It is flammable (H225), toxic if swallowed (H301), and causes severe skin burns and eye damage (H314). Handle with extreme care using appropriate personal protective equipment including gloves, goggles, faceshields, and suitable respiratory protection.
How is this product packed and exported?
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As a global supplier, Tech Serve Solutions packages and exports chemicals in compliance with international shipping regulations. Specific packaging details are confirmed at the time of order.
How can I request a sample or quote?
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To request a sample or a quote for Tetrafluoroboric acid dimethyl ether complex, please contact the Tech Serve Solutions sales team through our website or direct contact details.
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