- Fluoro methyl sulfone
- Methylsulfonyl fluoride
- Mesyl fluoride
Clear, colorless liquid
Registry Numbers and Inventories.
R 26/27/28 34
S 26 28 36/37/39 45
Agricultural Chemical and Pesticide
Swiss Giftliste 1
Boiling point, °C
Vapor pressure, mmHg
16 (25 C)
1.20006 g/cm3 (19.5 C)
Solubility in water
1.5214 (22 C)
Partition coefficient, pKow
Heat of vaporization
Hazards and Protection.
Store in a cool, dry place. Store in a tightly closed container. Keep under a nitrogen blanket.
Wash thoroughly after handling. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Use only in a chemical fume hood.
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
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.
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Wash area with soap and water. Clean up spills immediately, using the appropriate protective equipment. Provide ventilation.
Stable under normal temperatures and pressures.
Strong bases, oxidizing agents, alcohols.
Carbon monoxide, oxides of sulfur, carbon dioxide, hydrogen fluoride, fluoride fumes.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Water Reactive. Material will react with water and may release a flammable and/or toxic gas. Extinguishing media: Use carbon dioxide or dry chemical. DO NOT USE WATER!
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
When heated to decomposition, it emits very toxic fumes of fluorides and sulfur oxides.
Fire may produce irritating, corrosive and/or toxic gases.
Hyperventilation, low heart rate, rapid heart rate, elevated blood pressure, or abnormally low blood pressure may be seen. Symptoms noted in experimental animals included CNS depression, tremors, ataxia, and convulsions. Anticholinesterase compounds can affect the central nervous system, producing restlessness, anxiety, headaches, convulsions, and coma. No data were available to assess the teratogenic potential of this agent. <br>No data were available to assess the potential effects of exposure to this agent during pregnancy or lactation. <br>No information about possible male reproductive effects was found in available references.
May be fatal if swallowed. Causes gastrointestinal tract burns.
May cause irritation of the respiratory tract with burning pain in the nose and throat, coughing, wheezing, shortness of breath and pulmonary edema. Causes chemical burns to the respiratory tract. Inhalation may be fatal as a result of spasm, inflammation, edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema.
Causes skin burns.
Causes eye burns. Lachrymator.
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Destroy contaminated shoes.
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
USCG CHRIS Code