spar lithopone

spar lithopone
литопон с тяжелым шпатом

English-Russian dictionary of chemistre. 2014.

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  • barite — /bair uyt, bar /, n. a common mineral, barium sulfate, BaSO4, occurring in white, yellow, or colorless tabular crystals: the principal ore of barium. Also, barytes. Also called heavy spar. [1780 90; BAR(YTES) + ITE1] * * * or barytes or heavy… …   Universalium

  • Barium — (pronEng|ˈbɛəriəm) is a chemical element. It has the symbol Ba, and atomic number 56. Barium is a soft silvery metallic alkaline earth metal. It is never found in nature in its pure form due to its reactivity with air. Its oxide is historically… …   Wikipedia

  • Barium sulfate — chembox new ImageFile = Barium sulfate 2D.png ImageSize = 225px ImageName = Chemical structure of barium sulfate ImageFile1 = Barite unit cell 3D vdW.png ImageSize1 = 225px ImageName1 = 3D model of barium sulfate IUPACName = OtherNames = Section1 …   Wikipedia

  • barium — /bair ee euhm, bar /, n. Chem. a whitish, malleable, active, divalent, metallic element, occurring in combination chiefly as barite or as witherite. Symbol: Ba; at. wt.: 137.34; at. no.: 56; sp. gr.: 3.5 at 20°C. [1800 10; BAR(YTES) + IUM] * * *… …   Universalium


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