Aluminum soil (bauxite), also known as bauxite or bauxite
The main component is alumina, which is water containing impurities
Aluminum oxide is a soil like mineral. White or
Gray white, brown yellow or light red due to iron content. secret
Degree 2.4-2.5g/cm3, hardness 1-3, impermeable
Bright, brittle in texture, extremely difficult to melt. Insoluble in water, soluble
In sulfuric acid and sodium hydroxide solutions. Mainly used for refining aluminum,
Produce refractory materials.