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Merck
CN

769290

Aluminum oxide

greener alternative

powder, ultra dry

Synonym(s):

Alumina

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About This Item

Linear Formula:
Al2O3
CAS Number:
1344-28-1
Molecular Weight:
101.96
NACRES:
NA.23
PubChem Substance ID:
329767437
UNSPSC Code:
12352311
EC Number:
215-691-6
MDL number:
MFCD00003424

Key Documents

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Product Name

Aluminum oxide, powder, ultra dry

InChI key

TWNQGVIAIRXVLR-UHFFFAOYSA-N

InChI

1S/2Al.3O

SMILES string

O=[Al]O[Al]=O

form

powder

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

surface area

120-190 m2/g

impurities

≤0.5% substances extractable by water

loss

≤1.0% loss on ignition

particle size

>0.063, coeff var ≥72%
<0.063 mm, coeff var ≤28%
>2 mm, coeff var ≤2%

mp

2040 °C (lit.)

bulk density

950‑1100 g/L

anion traces

chloride (Cl-): ≤0.015%
sulfate (SO42-): ≤0.05%

cation traces

As: ≤0.0005%
Fe: ≤0.02%

greener alternative category

Enabling

Quality Level

100

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Application

Owing to its high hardness, chemical stability and thermal conductivity, alumina finds applications as filler for metals and plastics. It also finds applications in paints, polisher and cosmetics.

General description

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.

Storage Class

13 - Non Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM2079
BCCN2980
BCCL6101
BCCK7747
BCCK9686

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