Formic acid contains 53 g L â1 hydrogen at room temperature and atmospheric pressure. By weight, pure formic acid stores 4.3 wt% hydrogen. Pure formic acid is a liquid with a flash point 69 Â°C (cf. gasoline â40 Â°C, ethanol 13 Â°C). 85% formic acid is not flammable.
Tombstone is located in Cochise County of southeast Arizona, 70 miles southeast of Tucson, 20 miles east of the San Pedro River and 15 miles southwest of the Dragoon Mountains.
Tombstone Arizona. Once The Meanest Town in the West. Step into Tombstone AZ and you'll be stepping back into the rough and toughdays of the wild west. In the 1880s, Tombstone was a booming mining town that brought a rush of prospectors and miners looking to strike it rich.