We know better today. Organic compounds can be produced from inorganic raw materials. But the traditional division of compounds into organic and inorganic is useful, and it continues to be used.
A sharper (but equally artificial) line can be drawn between the organic and inorganic realms by considering organic compounds as more than simply carbon-containing compounds. Compounds that are considered organic must contain carbon bound to hydrogen and possibly other elements. By this definition, iron cyanide complexes, carbon dioxide, carbon tetrachloride, and sodium bicarbonate are all inorganic.
Author: Fred Senese firstname.lastname@example.org
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Last Revised 08/17/15.URL: http://antoine.frostburg.edu/chem/senese/101/inorganic/faq/print-what-is-inorganic-carbon.shtml