Care of persons exposed to toxic chemicals must be directed by a physician or other recognized authority. Pure Form - Liquid. When heated to decomposition, emits very toxic fumes of fluorides and sulfur oxides. Ingestion of methanesulfonyl fluoride produces highly corrosive hydrogen fluoride. Effects may be delayed for several hours.
Caution is advised.
Signs and symptoms of acute exposure to methanesulfonyl fluoride may include nausea, vomiting, dysphagia, bloody emesis, diarrhea, abdominal pains, and epigastric pain following ingestion. Acute hemorrhagic gastroenteritis has occurred after massive oral overdoses. Cardiac arrythmia, respiratory stimulation, followed by respiratory depression, coughing, and choking may occur following inhalation. Acute exposure to methanesulfonyl fluoride exposure may require decontamination and life support for the victims. Emergency personnel should wear protective clothing appropriate to the type and degree of contamination.