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Aluminium oxide (Alumina)

Offer type: salePublished: 01.04.2015
Seller:Viktoriya Viktoriya
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Address:Ukraine, Donets'ka Oblast', Donetsk
Sell Aluminum oxide (alumina).
Colorless water-insoluble crystals.
chemical properties - amphoteric oxide. Practically insoluble in acids. Soluble in hot solutions and melts of alkali.
Tmelt 2044 °C.
An n-type semiconductor, but despite this is used as dielectrics in aluminum electrolytic capacitors.
The dielectric constant of 9.5 - 10.
Dielectric strength 10 kV/mm.
Ceramics based on aluminum oxide has a high hardness, fire resistance and antifriction properties and is a good insulator. It is used in burners of gas-discharge lamps, substrates of integrated circuits, in the locking elements ceramic pipe taps, dentures, etc.
The so-called β-alumina in reality is a mixed oxide of aluminium and sodium. He and connection with its structure are of great scientific interest as metalloproteases solid electrolyte.
γ-Modification of aluminum oxide are used as a carrier of catalysts, raw materials for the production of the mixed catalyst, desiccant in various processes in chemical, petrochemical industries
The price for 1 ton - 3000 gr.Shipping.