Alumina Oxide, Calcined

$4.00$77.29

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SKU: SKU 75 Category:

Description

Calcined Alumina – Al2O3 (m.p. 3700oF/2040o C) is produced by calcining hydrated alumina at temperatures of 1200o-1300oC to convert it to alpha-Al2O3. Alpha-alumina is the most stable form of aluminum oxide. Glazes with a moderate alumina content tend to be matt, opaque, and very durable. It also reduces shrinkage, increases thixotropy, minimizes firing warpage, and adds fired strength.

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