Business / Machine Shop / Carbon: A nonmetallic chemical element that occurs in many inorganic and all organic compounds. Carbon is found in diamond and graphite and is a constituent of coal, petroleum, asphalt, limestone and other carbonates. In combination, it occurs as carbon dioxide and as a constituent of all living things. Adjustment of the amount of carbon in iron produces steel.
Health / Dentistry / Carbons: Vitreous (polycrystalline or glassy) or pyrolytic graphitic structures of relatively hard, inert, and stable compounds that are conductors of thermal and electrical energy. Characterized by ionic and MORE
Science / Chemistry / Carbonate Hardness: Water hardness due to the presence of calcium and magnesium carbonates and bicarbonates. The 'noncarbonate hardness' is due mostly to calcium and magnesium sulfates, chlorides, and nitrates. MORE