Alumina (calcined)

Alumina (calcined)

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Formula: Al2O3

Produced by calcining a hydrated alumina at temperatures of 1200-1300C. It is typically substituted for molochite and or silica grogs in porcelain bodies (325 mesh). It reduces shrinkage, increases thixotropy (shear thinning characteristics), minimizes firing warpage, and adds fired strength.

Melting Point: 2040oC

Molecular weight: 102

Glaze Material Group: Alumina

Alternative Name:

Safety: Toxic material or hazardous as airborne dust, and/or as powder and/or in liquid suspension
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