Product Identification
【Product Name】Trifluoromethanesulfonic anhydride
【Synonyms】Triflic acid anhydride 三氟甲磺酸酐
【CAS】358-23-6
【Formula】C2F6O5S2
【Molecular Weight】282.14
【EINECS】206-616-8
【Beilstein/Gmelin】1813600
【Beilstein Reference】4-03-00-00035
【EC Class】corrosive
Physical and Chemical Properties
【Appearance】Clear, colorless liquid.
【Solubility in water】Insoluble
【Boiling Point】83
【Vapor Pressure】87 (25 C)
【Density】1.67 g/cm3
【Partition Coefficient】2.12
【Heat Of Vaporization】31.0 kJ/mol
【Usage】Will convert phenols into a triflic ester, which enables cleavage of the c-o bond.
【Vapor Density】5.2
【Refractive Index】1.32 (20 C)
First Aid Measures
【Ingestion】Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
【Inhalation】Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
【Skin】Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
【Eyes】Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Handling and Storage
【Storage】Store in a tightly closed container. Keep under a nitrogen blanket. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from water. Corrosives area.
【Handling】Wash thoroughly after handling. Use with adequate ventilation. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Do not allow contact with water. Use only in a chemical fume hood. Wash clothing before reuse.
Hazards Identification
【Ingestion】Causes gastrointestinal tract burns.
【Inhalation】May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. Inhalation may be fatal as a result of spasm, inflammation, edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema.
【Skin】Causes skin burns.
【Eyes】Causes eye burns.
【Hazards】Contact with metals may evolve flammable hydrogen gas.
【EC Risk Phrase】R 14 22 35 37
【EC Safety Phrase】S 26 36/37/39 45
【UN (DOT)】1760
Exposure Controls/Personal Protection
【Personal Protection】Eyes: Wear appropriate protective eyeglasses or chemical safety ggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
【Respirators】Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Fire Fighting Measures
【Flash Point】-1
【Fire Fighting】Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Water Reactive. Vapors may be heavier than air. They can sp along the ground and collect in low or confined areas. Containers may explode when heated. Extinguishing media: Do NOT use water directly on fire. Use dry chemical, carbon dioxide, or alcohol-resistant foam. Cool containers with flooding quantities of water until well after fire is out.
【Fire Potential】Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Accidental Release Measures
【Small spills/leaks】Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Do not expose spill to water. Do not get water inside containers.
Stability and Reactivity
【Disposal Code】4
【Stability】Stable under normal temperatures and pressures.
【Incompatibilities】Strong bases, strong oxidizing agents, acids, alcohols, moist air, or water.
【Decomposition】Carbon monoxide, oxides of sulfur, carbon dioxide, hydrogen fluoride.
【Combustion Products】Fire may produce irritating, corrosive and/or toxic gases.
Transport Information
【UN Number】1760
【Hazard Class】8
【Packing Group】I; II; III
【HS Code】2904 90 20