[{"from": "human", "value": "Describe this molecule. [F][S][Branch1][C][F][Branch1][C][F][F]"}, {"from": "gpt", "value": "The molecule is a colorless gas with a distinct sulfur odor. It is highly toxic by inhalation and a strong irritant to skin, eyes and mucous membranes. It reacts vigorously with water and acids to yield toxic fluoride and sulfur oxide fumes and an acidic solution. Sulfur tetrafluoride is heavier than air. Under prolonged exposure to fire or intense heat the containers may violently rupture or rocket. It is used as a fluoridizing agent and as an oil repellent."}]