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Name commonly used for carbon dioxide or carbonic anhydrid.

This gas, which neither supports respiration nor combustion, is not often used in medicine. It is the main agent in effervescent draughts, fermenting poultices, &c. It is often found occupying the lower parts of mines-when it is called the choke damp-caverns, tombs, wells, brewers' vats, &c., and not unfrequently has been the cause of death. Lime thrown into such places soon absorbs the acid.

carbon dioxid, CO2, colorless, odorless gas.

CO2, carbon dioxid, gas, colorless, odorless.