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Key Documents

A1522

Sigma-Aldrich

Óxido de alumínio

Type WN-6, Neutral, Activity Grade Super I

Sinônimo(s):

Alumina

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About This Item

Fórmula linear:
Al2O3
Número CAS:
Peso molecular:
101.96
Número CE:
Número MDL:
Código UNSPSC:
12352311
eCl@ss:
38120402
ID de substância PubChem:
NACRES:
SB.52

Nível de qualidade

tipo

Type WN-6, Neutral

forma

powder

pf

2040 °C (lit.)

cadeia de caracteres SMILES

O=[Al]O[Al]=O

InChI

1S/2Al.3O

chave InChI

TWNQGVIAIRXVLR-UHFFFAOYSA-N

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Descrição geral

Aluminum oxide (alumina, Al2O3), a metal oxide, is a common raw material for manufacturing ceramics. It is a good electrical insulator that shows stability at high temperature and resistance to chemicals. Alumina is an important source for aluminum and can be prepared from high-alumina ladle furnace refining slag. It can enhance the reaction rate of aldose to ketose conversion by Lobry de Bruyn–Alberda van Ekenstein transformation. It is a key constituent of NOx storage catalysts (NSC), which are employed to get rid of nitrogen oxides from the exhaust gas of lean burn engines. Its surface passivation characteristics on crystalline silicon makes it a vaiable candidate in silicon solar cell production.

Aplicação

Aluminum oxide was used in the disposable alumina columns, to determine the adenylyl cyclase (AC) activity during the interaction of 2,3-O-(2,4,6-trinitrophenyl)-substituted nucleoside 5-triphosphates (TNP-NTPs)with VC1:IIC2 (purified catalytic subunits of membranous AC). It may be used as a dopant to produce optical fiber amplifiers and high-power fiber lasers.

Código de classe de armazenamento

13 - Non Combustible Solids

Classe de risco de água (WGK)

nwg

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


Certificados de análise (COA)

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Srividya Suryanarayana et al.
The Journal of pharmacology and experimental therapeutics, 330(3), 687-695 (2009-06-06)
Adenylyl cyclases (ACs) catalyze the conversion of ATP into the second messenger cAMP and play a key role in signal transduction. In a recent study (Mol Pharmacol 70:878-886, 2006), we reported that 2',3'-O-(2,4,6-trinitrophenyl)-substituted nucleoside 5'-triphosphates (TNP-NTPs) are potent inhibitors (K(i)
Nonlinear relaxational polarization in aluminum oxide.
Kankate L, et al.
IEEE Transactions on Dielectrics and Electrical Insulation, 22(2), 1220-1231 (2015)
Alumina as a dopant in optical fiber by OVD.
Wang J.
Applied Physics. A, Materials Science & Processing, 116(2), 505-518 (2014)
Advances in the surface passivation of silicon solar cells.
Schmidt J, et al.
Energy Procedia, 15, 30-39 (2012)
Aldose-ketose interconversion in pyridine in the presence of aluminium oxide.
Ekeberg D, et al.
Carbohydrate Research, 342(14), 1992-1997 (2007)

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