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ZAFFER
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Zaffre
Zaffre, a pre-scientific substance (see List of alchemical substances), is a deep blue pigment obtained by roasting cobalt ore, and is made of either an impure form cobalt oxide or impure cobalt arseniate. During the Victorian Era, zaffre was used to prepare smalt and stain glass blue.

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Webster's Revised Unabridged Dictionary (1913)Download this dictionary
Zaffer
(n.)
A pigment obtained, usually by roasting cobalt glance with sand or quartz, as a dark earthy powder. It consists of crude cobalt oxide, or of an impure cobalt arseniate. It is used in porcelain painting, and in enameling pottery, to produce a blue color, and is often confounded with smalt, from which, however, it is distinct, as it contains no potash. The name is often loosely applied to mixtures of zaffer proper with silica, or oxides of iron, manganese, etc.
  

Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
Free English-Vietnamese DictionaryDownload this dictionary
zaffer
zaffer /'zæfə/
  • danh từ
    • phẩm lục (coban oxyt, dùng làm chất màu)

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    Dizionario inglese-italiano 1.0.012Download this dictionary
    ZAFFER
    ZAFFERA. ZAFFARA

    English-VietnameseDownload this dictionary
    zaffer
    danh từ
    • phẩm lục ( coban oxyt, dùng làm chất màu)


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