Triethylamine trihydrofluoride (CAS 73602-61-6), often designated as MEC-82 in industrial applications, is a colorless to slightly yellow, fuming liquid. It is a stable complex of triethylamine and hydrogen fluoride with the chemical formula C6H15N.3HF. Unlike anhydrous HF, Triethylamine trihydrofluoride (CAS 73602-61-6) is liquid at room temperature and significantly easier to handle in organic synthesis. It serves as a mild yet powerful source of nucleophilic fluoride, capable of performing selective fluorination under relatively mild conditions without the extreme hazards associated with gas-phase HF.

• Superior Safety Profile: Lower vapor pressure and reduced volatility compared to anhydrous HF or Olah's reagent (Pyridine-HF).

• High Selectivity: Excellent for nucleophilic substitution reactions, enabling the synthesis of complex fluorinated organic molecules with high yields.

• Excellent Solubility: Fully miscible with common organic solvents like dichloromethane (DCM), THF, and acetonitrile, facilitating homogeneous reactions.

• Electronic Grade Quality (MEC-82): Our MEC-82 grade features ultra-low metallic impurities, making it suitable for semiconductor etching and battery applications.

• Non-Etching to Specialized Plastic: While it attacks glass, it is stable in HDPE, polypropylene, and PTFE (Teflon) equipment.

• High Purity (≥ 99.0%): Chemfine guarantees strictly controlled moisture levels and a precise HF-to-amine ratio for consistent reactivity.

Pharmaceutical and Fine Chemical Synthesis

A key reagent for the production of fluorinated drugs, including nucleoside analogues, steroids, and anti-inflammatory agents.

Organic Fluorination Reactions

Used for the conversion of alcohols to alkyl fluorides, the deprotection of silyl ethers, and the hydrofluorination of alkenes and alkynes.

Battery Electrolyte Additive

Utilized in high-performance lithium-ion batteries to improve thermal stability and enhance the cycling performance of the electrolyte.

Semiconductor Etching and Cleaning

Acts as a specialized etching agent in the electronics industry for the controlled removal of oxide layers without damaging sensitive substrates.

Polymer and Material Science

Serves as a catalyst or reagent in the synthesis of fluorinated polymers and specialty surfactants.

Standard industrial packaging for Triethylamine trihydrofluoride includes:

• 25kg specialized fluorinated HDPE drums (Standard export packaging).

• 200kg heavy-duty plastic drums for large-scale industrial manufacturing.

• 1000kg IBC tanks (composite with HF-resistant lining) for bulk requirements.

• Note: This product cannot be stored in glass. All packaging is nitrogen-blanketed and hermetically sealed.

Triethylamine trihydrofluoride is corrosive and moisture-sensitive. It must be stored in a cool, dry, and well-ventilated warehouse. Containers must be made of HDPE, Polypropylene, or PTFE; never store in glass or certain metals. Keep containers tightly sealed to prevent the absorption of atmospheric moisture and the release of HF fumes. Store in a dedicated corrosive substances area. Properly stored, it has a shelf life of 12 months.

TREAT HF, Et3N.3HF, Triethylamine tris(hydrogen fluoride), MEC-82, Triethylammonium tris(hydrogen fluoride).

1. Pyridine hydrofluoride (Olah's Reagent) – CAS 62778-11-4

2. Diethylaminosulfur trifluoride (DAST) – CAS 38078-06-2

3. Tetrabutylammonium fluoride (TBAF) – CAS 429-41-4

4. Potassium fluoride – CAS 7789-23-3

5. HF-Pyridine complex – CAS 32001-55-1

6. Triethylamine – CAS 121-44-8

7. XtalFluor-E – CAS 635136-63-3

8. Deoxofluor – CAS 202280-60-8

9. Cesium fluoride – CAS 13400-13-0

10. Hydrofluoric Acid (Anhydrous) – CAS 7664-39-3