CARBONIC a.
hem.), a colorless gas, CO, of a light odor, called more correctly carbon monoxide. It is almost the only definitely known compound in which carbon seems to be divalent. It is a product of the incomplete combustion of carbon, and is an abundant constituent of water gas. It is fatal to animal life, extinguishes combusti…
CHARCOAL n.
made with charcoal. See Charcoal, 2. Until within a few years this material has been used almost exclusively for preliminary outline, etc., but at present many finished drawings are made with it. -- Charcoal point, a carbon pencil prepared for use un an electric light apparatus. -- Mineral charcoal, a term applied to…