A form of carbon black, composed of nearly pure carbon, collected as soot from the combustion of vegetable oils, petroleum, asphalt, or gas, used as an intense, dull black pigment in printing inks.
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A form of carbon black, composed of nearly pure carbon, collected as soot from the combustion of vegetable oils, petroleum, asphalt, or gas, used as an intense, dull black pigment in printing inks.