Aluminum Oxide

Chemical formula: Al₂O₃

Molecular Weight: 101.96

CAS: 1344-28-1

EINECS: 215-691-6

Melting Point: 2050ºC

Boiling Point: 2980ºC

Water solubility: soluble in water slightly, soluble in alkaline and acid

Density: 3.5-3.9g / cm3

Appearance: white amorphous powder

Application: used as analytical reagents, adsorbents

Pipe system: This product is not restricted

Lattice constant: a = 0.514nm

Crystalstructure: O2- ion by a hexagonal packing arrangements precision

Ruby, sapphire main ingredients are all aluminum, as other impurities present different color, sapphire is iron oxide and titanium oxide and blue. Synthetic gemstones, smelting, rust, abrasive materials, color layer media analyte, glass, refractories, ceramics, laser materials, adsorbents, flame retardant. Emery hardness can be used as abrasives, polishing powder, high-temperature sintering of alumina, said artificial corundum or synthetic stones, can be prepared by mechanical bearings or diamond timepiece. Alumina is also used as a high temperature refractory material, made bricks, crucibles, porcelain, artificial gems, etc., aluminum is the raw materials of aluminum metallurgy.