A technical dictionary of printmaking, André Béguin.
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barium sulphate
baryta, barium white. A chemical compound (Latin name: sulfas bariticus; formula: SO4Ba), obtained either from the natural mineral barytes or by chemical reaction ans used as a filler in the manufacture of paper or as an extender in printing ink in combination with other pigments. The artificial products are called blanc fixe, fast white, pearl white and permanent white.
FR.: sulfate de baryum; blanc de baryte précipité sec. 1) barytine 2) blanc fixe, blanc permanent. German: Bariumsulfat, Barytweiß 1) Schwerspat 2) Blanc fixe. Dutch: bariumsulfaat, barietwit 1) zwaarspaat 2) blanc fixe, permanent-wit.
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