“zaffer”的英文意思_释义_用法

单词

zaffer

释义

zaffre, zaffer|ˈzæfə(r)|
Also (7 zaphara, saffera), 9 saffre, saffer, (zaffira, suphara).
[ad. It. zaffera (Neri) or F. zafre, safre (12–13th c.); cf. Sp. zafre, safre, G. zaffer, zaffra: of uncertain origin.]
An impure oxide of cobalt, obtained by roasting cobalt-ore, and used in the preparation of smalt and as a blue colouring-matter (cobalt blue) for pottery, glass, etc.
1662Merrett tr. Neri's Art of Glass xii, Take Zaffer in gross pieces.1686Phil. Trans. XVI. 26 Smalt is made of Zaffer and Pot-ashes.1693tr. Blancard's Phys. Dict. (ed. 2), Zaphara or Saffera.1745Watson in Phil. Trans. XLIII. 497 Zaffer, which is used by the Glass-makers and Enamellers, is made of Cobalt..calcined after the subliming the Flowers.1804tr. Tingry's Paint. & Varn. Guide 301 Smalt, or vitreous oxide of cobalt, is saffer reduced to blue glass by the action of a violent fire.1843Poe Tales, Gold-Bug, Zaffre, digested in aqua regia, and diluted with four times its weight of water, is sometimes employed; a green tint results.1912Contemp. Rev. Dec. 860 The Egyptian porcelain..manufacturer, who used for the zaffre the Cyprus blue-stone.

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