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UltramarineEdit

180px-Natural ultramarine pigment

Powdered UltramarineEdit

Formula: Sodium alumino sulfosilicateEdit

Description: Ultramarine is a blue pigment consisting primarily of a double silicate of aluminium  and sodium with some sulfides or sulfates, and occurring in nature as a proximate component of lapis lazuli. It was traditionally used for cave drawings and eventually pigments in art and other areas. In pyrotechnics, it is used as a fuel that burns bright yellow in color, but is rarely used anymore thanks to the development of such materials as sodium oxalate  and cryolite . These newer materials are cheaper and easier to obtain, and therefore are more frequently used.

Hazards: Slight irritant. Carcinogenicity unknown.

Sources: Sold as Blue Pigment 29, Ultramarine, and Sodium alumino sulfosilicate from chemical suppliers, crafting, and ceramic stores.

Hazard Symbols: Xi

ReferencesEdit

Wikipedia

MSDS

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