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 is a film friendly community! Filming in Tombstone is an easy process! Become a part of history by filming in âThe Most Famous Western Town in the World! Primary contact: Tombstone City Hall - (520) 457-2202 - cityhall@cityoftombstone.com.