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Merck

229423

Aluminum oxide

greener alternative

powder, 99.99% trace metals basis

Synonym(s):

Alumina

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About This Item

Linear Formula:
Al2O3
CAS Number:
Molecular Weight:
101.96
PubChem Substance ID:
eCl@ss:
38120402
UNSPSC Code:
12352311
NACRES:
SB.52
EC Number:
215-691-6
MDL number:
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InChI key

TWNQGVIAIRXVLR-UHFFFAOYSA-N

InChI

1S/2Al.3O

SMILES string

O=[Al]O[Al]=O

assay

99.99% trace metals basis

form

powder

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mp

2040 °C (lit.)

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Quality Level

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General description

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.
We are committed to bringing you Greener Alternative Products, which belong to one of the four categories of greener alternatives. Aluminum oxide serves as a multifunctional additive or coating in lithium-ion batteries, helping stabilize electrode–electrolyte interfaces, suppress side reactions, improve thermal stability, and extend cycle life. By enabling safer, longer-lasting cells, it reduces material waste and energy use across the battery lifecycle. Click here for more information.

Application

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.

Features and Benefits

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

flash_point_f

Not applicable

flash_point_c

Not applicable

Storage Class

13 - Non Combustible Solids


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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.
Skrdla PJ and Lindemann C.
Applied Catalysis A: General, 246(2), 227-235 (2003)
Prescott R and Graham MJ.
Oxidation of Metals, 38(3-4), 233-254 (1992)
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)
Colin J Ingham et al.
Biotechnology advances, 30(5), 1089-1099 (2011-08-23)
Porous aluminum oxide (PAO) is a ceramic formed by an anodization process of pure aluminum that enables the controllable assembly of exceptionally dense and regular nanopores in a planar membrane. As a consequence, PAO has a high porosity, nanopores with

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