Tetrabutylammonium hydrogen difluoride solution
Tetrabutylammonium hydrogen difluoride solution (CAS: 23868-34-0) is a versatile fluorinating reagent. With a linear formula of (CH3CH2CH2CH2)4N(HF2) and a molecular weight of 281.47 g/mol, this compound is commonly supplied as approximately a 50% solution in acetonitrile. It is primarily utilized in chemical synthesis for nucleophilic fluorination, ring-opening fluorination reactions, and substitution reactions, and also serves as an etchant for silica films.
- IUPAC
- TBABF,Tetrabutylammonium bifluoride,Tetrabutylammonium difluoride
Fluorination Reactions
Serves as a key reactant in various fluorination processes, including nucleophilic fluorination and ring-opening fluorination reactions, enabling the introduction of fluorine atoms into organic molecules.
Substitution Reactions
Utilised in substitution reactions where the difluoride anion can act as a nucleophile to replace other leaving groups, facilitating the synthesis of fluorinated organic compounds.
Etching Agent
Functions as an etchant for silica films, finding application in microelectronics fabrication and material processing where controlled etching is required.
| Molecular weight | 281.47 |
|---|---|
| Linear formula | (CH3CH2CH2CH2)4N(HF2) |
| Concentration | ~50% in acetonitrile |
| Storage temperature | 2-8°C |
| Impurities tested | ≤1% water |
| Application | • Used as an etchant for silica films1Reactant for:• Nucleophilic fluorination2• Ring-opening fluorination reaction3• Substitution reactions4 |
Hazard statements
- H225Highly flammable liquid and vapour
- H302Harmful 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
- 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 |
|---|---|
| Transport (UN / ADR) | UN 2924 8(3) / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 11-20/21/22-34 |
| 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 Tetrabutylammonium hydrogen difluoride solution used for?
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Tetrabutylammonium hydrogen difluoride solution is used as a reactant for nucleophilic fluorination, ring-opening fluorination reactions, substitution reactions, and as an etchant for silica films.
What is the CAS number and formula for Tetrabutylammonium hydrogen difluoride solution?
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The CAS number is 23868-34-0, and its linear formula is (CH3CH2CH2CH2)4N(HF2).
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tetrabutylammonium hydrogen difluoride solution with a concentration of approximately 50% in acetonitrile, containing less than or equal to 1% water. We do not represent this product as USP, BP, or EP grade.
How should Tetrabutylammonium hydrogen difluoride solution be handled safely?
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This substance is flammable and corrosive, causing severe skin burns and eye damage. Handle with extreme care, using full personal protective equipment including gloves, goggles, face shields, and appropriate respiratory protection. Store in a cool, well-ventilated area away from ignition sources and incompatible materials. Always consult the Safety Data Sheet (SDS) before use.
How is Tetrabutylammonium hydrogen difluoride solution packed, shipped, and exported?
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Tetrabutylammonium hydrogen difluoride solution is packed in accordance with international shipping regulations for hazardous materials. TSS is experienced in exporting chemicals globally. Please contact us for specific shipping and export inquiries.
How can I request a sample or quote for Tetrabutylammonium hydrogen difluoride solution?
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To request a sample or a quote, please use the 'Request Sample' or 'Request Quote' buttons on our product page, or contact our sales department directly via email or phone.
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