Trifluoromethanesulfonic acid 99.5% CAS CAS 1493-13-6 is a super strong, non-oxidizing organic acid with low nucleophilicity. It is a fuming, colourless to pale yellow liquid, widely used as catalyst and raw material for lithium battery salts and fine fluorochemicals. TNJ Chemical, established in 2001, is a reliable manufacturer, you can buy it with competitive price and stable quality, please email sales@tnjchem.com
Product information
Chemical name: Trifluoromethanesulfonic acid
CAS No.: 1493-13-6
EINECS: 216-087-5
Molecular formula: CF₃SO₃H
Molecular weight: 150.08 g/mol
Physical & Chemical Properties
Density (25℃): 1.696–1.708 g/mL
Melting point: -40 ℃
Boiling point: 162 ℃
Refractive index n20/D: 1.327Vapor pressure: 8 mmHg @25℃
pKa: -14.7
Solubility: Miscible with water and polar organic solvents; releases heat while mixing with water
Flash point: Non-flammable
Character: Hygroscopic, fumes on exposure to air, corrosive.
Quality specification
| Test Item | Industrial Grade | High Purity Li/Pharma Grade |
|---|---|---|
| Assay (titration) | ≥99.0 % | ≥99.5 % |
| Water Content (KF) | ≤0.5 % | ≤0.2 % |
| Free Fluoride (F⁻) | ≤100 ppm | ≤50 ppm |
| Sulfate (SO₄²⁻) | ≤200 ppm | ≤100 ppm |
| APHA Color | ≤50 | ≤30 |
| Na, K, Ca, Fe, Mg (each metal) | ≤20 ppm | ≤10 ppm |
| Residue on Ignition | ≤0.10 % | ≤0.05 % |
Use & application
Powerful acid catalyst for organic synthesis, pharmaceutical and agrochemical intermediates.
Key raw material for producing LiTFSI and lithium triflate for lithium battery electrolyte.
Catalyst for cationic polymerization and polymer modification.Etching and electroplating additive.
Packing
25kg or 50kg PTFE-lined stainless steel drum.
Delivery and storage
UN1789, Class 8 corrosive liquid for transport.
Store in cool, dry and sealed warehouse.
Keep away from moisture, alkali and oxidants. Avoid long-time contact with glass.
Shelf life: 12 months under recommended storage.



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