Linked from
The 19 pages that link to Alumina, each with the reason it gives.
Sodium hydroxideRelated: The Bayer process uses sodium hydroxide to extract alumina from bauxite.
Ceramic glazeRelated: Alumina helps keep molten glaze from running off a vessel.
Hall–Héroult processRelated: It supplies the aluminium ions reduced at the cathode.
Aluminium smeltingRelated: Its dissolved aluminium ions are reduced at the cell’s cathode.
Fire brickRelated: Higher alumina content generally suits fire bricks to hotter service.