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tellurides

tellurides Sentence Examples

  • S, Se; Te (in tellurides); Cr, Mn, Te (in the acids H 2 RO 4); As, Sb (in the glances MR2) As, Sb, Bi; Te (as an element); P, Vd (in salts); N, P (in organic bases).

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  • TELLURIUM [[[Symbol]] Te, atomic weight 127.5 (0=16)], a chemical element, found to a certain extent in nature in the uncombined condition, but chiefly in combination with other metals in the form of tellurides, such, for example, as sylvanite, black tellurium, and tetradymite.

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  • It is best obtained by decomposing metallic tellurides with mineral acids.

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  • It may be liquefied, the liquid boiling at o° C., and on further cooling, it solidifies, the solid melting at -48° C. Many tellurides of metals have been examined by C. A.

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  • Soc., 1909, 3 1, p. 902) who obtained the sodium and potassium tellurides by the direct union of their component elements and others from these by precipitation.

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  • The ores are almost exclusively gold, tellurides being the most characteristic form, and occur in fissure veins.

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  • Altaite is of interest as being one of the tellurides found associated with gold.

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  • Silver sulphide, Ag 2 S, occurs naturally as the orthorhombic acanthite, and the cubic argentite; the telluride, Ag 2 Te, named hessite, assumes cubic forms; other tellurides containing silver are petzite, (Ag,Au) 2 Te, and sylvanite, AuAgTe 4.

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  • S, Se; Te (in tellurides); Cr, Mn, Te (in the acids H 2 RO 4); As, Sb (in the glances MR2) As, Sb, Bi; Te (as an element); P, Vd (in salts); N, P (in organic bases).

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  • TELLURIUM [[[Symbol]] Te, atomic weight 127.5 (0=16)], a chemical element, found to a certain extent in nature in the uncombined condition, but chiefly in combination with other metals in the form of tellurides, such, for example, as sylvanite, black tellurium, and tetradymite.

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  • It is best obtained by decomposing metallic tellurides with mineral acids.

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  • It may be liquefied, the liquid boiling at o° C., and on further cooling, it solidifies, the solid melting at -48° C. Many tellurides of metals have been examined by C. A.

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  • Soc., 1909, 3 1, p. 902) who obtained the sodium and potassium tellurides by the direct union of their component elements and others from these by precipitation.

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  • The tellurides of the alkali metals immediately decompose on exposure to air, with liberation of tellurium.

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  • The ores are almost exclusively gold, tellurides being the most characteristic form, and occur in fissure veins.

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  • Altaite is of interest as being one of the tellurides found associated with gold.

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  • Silver sulphide, Ag 2 S, occurs naturally as the orthorhombic acanthite, and the cubic argentite; the telluride, Ag 2 Te, named hessite, assumes cubic forms; other tellurides containing silver are petzite, (Ag,Au) 2 Te, and sylvanite, AuAgTe 4.

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