I was curious about your comment so I did a few searches, and it looks like a major decomposition product is hydrogen fluoride. According to Wikipedia: "Hydrog

I was curious about your comment so I did a few searches, and it looks like a major decomposition product is hydrogen fluoride. According to Wikipedia: "Hydrogen fluoride is a highly dangerous gas, forming corrosive and penetrating hydrofluoric acid upon contact with tissue. The gas can also cause blindness by rapid destruction of the corneas."