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.
Visit southern Arizona's Cochise County, the âLand of Legends.â Cochise County is where you can find out about Tombstone and the Old West, learn about military history at Fort Huachuca, go birding and hiking in our high deserts, visit mining towns like Bisbee, taste wine from local vineyards and visit U-Picks farms in Willcox, go underground at ...