Gravimetric determination of free carbon and silicon carbide in silica fume.

Abstract

Silica fume is formed as a by-product in the manufacture of silicon from quartzite. This paper describes an analytical method for the determination of free carbon and silicon carbide in silica fume. The silicon carbide was determined after removal of free carbon, amorphous silica, crystalline silica, graphite and silicon from the fume. The free carbon… (More)

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