Blanc Fixe

An inorganic material used as a white pigment in printing inks, typically as an extender. Blanc fixe is precipitated barium sulfate (chemical formula BaSO4) with trace amounts of silicon oxide. It possesses high lightfastness, heat resistance, and chemical resistance. It also helps maintain the original qualities of the color with which it is mixed. (See also White Pigments.)

('CI Pigment White 21 No. 77120'.)

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