1. A white or grayish-white aluminum oxide (Al₂O₃) compound, used in ceramics, abrasives, refractories, and as a catalyst support
Alumia is a key ingredient in the production of aluminum metal.
A alumina é um ingrediente fundamental na produção de metal de alumínio.
2. A ceramic or refractory material made from aluminum oxide
High-temperature applications often require alumia crucibles.
Aplicações de alta temperatura frequentemente requerem cadinhos de alumina.