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229423

Sigma-Aldrich

Aluminum oxide

powder, 99.99% trace metals basis

Sinonimo/i:

Alumina

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About This Item

Formula condensata:
Al2O3
Numero CAS:
Peso molecolare:
101.96
Numero CE:
Numero MDL:
Codice UNSPSC:
12352311
eCl@ss:
38120402
ID PubChem:
NACRES:
SB.52

Saggio

99.99% trace metals basis

Stato

powder

Punto di fusione

2040 °C (lit.)

Stringa SMILE

O=[Al]O[Al]=O

InChI

1S/2Al.3O
TWNQGVIAIRXVLR-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

Aluminum oxide (Al2O3), also known as alumina. It is commonly used in various rubber, plastics, ceramics, and refractory materials for reinforcement hardening. It can also be used as a filler or component in polymer or inorganic composite materials, as a catalyst or catalyst support, as an adsorbent, etc.

Applicazioni

Aluminum oxide is used as
  • Filler for plastics and a common ingredient in sunscreen and many cosmetics.
  • As a catalyst for alcohol dehydration in the Claus process.
  • As a catalyst in the conversion of urea to ammonia.

Caratteristiche e vantaggi

Aluminum oxide has:
  • High porosity
  • High surface area
  • Acidic and basic property

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

nwg

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


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Mobeen Murtaza et al.
Molecules (Basel, Switzerland), 25(18) (2020-09-26)
Water-based drilling fluids are extensively used for drilling oil and gas wells. However, water-based muds cause clay swelling, which severely affects the stability of wellbore. Due to two adsorption positions, it is expected that cationic gemini surfactants can reduce the
Dehydration of 2-butanol by a sulfated zirconia/γ-alumina mixed metal oxide catalyst inside a gas chromatograph injection port.
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Thermoanalytical studies of water on activated alumina, Brockmann I-V,(acid, neutral, basic) from- 60? to+ 700? C.
Hampson JW and Bleam WF.
Thermochimica Acta, 288(1), 179-189 (1996)
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Nanoscale, 5(17), 8090-8097 (2013-07-25)
We demonstrated a promising route for enhancing temperature sensitivity, improving saturation voltage, and reducing power consumption of the MOS(p) tunneling temperature sensors by introducing ultrathin Al2O3 into the dielectric stacks. Detailed illustrations of the working mechanism and device concept are

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