Skip to Content
Merck
All Photos(1)

Key Documents

769290

Sigma-Aldrich

Aluminum oxide

powder, ultra dry

Synonym(s):

Alumina

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
Al2O3
CAS Number:
Molecular Weight:
101.96
EC Number:
MDL number:
UNSPSC Code:
12352311
PubChem Substance ID:
NACRES:
NA.23

Quality Level

form

powder

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%

SMILES string

O=[Al]O[Al]=O

InChI

1S/2Al.3O

InChI key

TWNQGVIAIRXVLR-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

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.

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service