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769290

Sigma-Aldrich

Aluminum oxide

powder, ultra dry

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Synonym(s):
Alumina
Linear Formula:
Al2O3
CAS Number:
Molecular Weight:
101.96
EC Number:
MDL number:
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

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This Item
267740A1522202606
Aluminum oxide powder, ultra dry

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Aluminum oxide pore size 58&#160;Å, ~150&#160;mesh

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Aluminum oxide Type WN-6, Neutral, Activity Grade Super I

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Aluminum oxide 99.997% trace metals basis

Sigma-Aldrich

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particle size

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

particle size

~150 mesh

particle size

-

particle size

-

mp

2040 °C (lit.)

mp

2040 °C (lit.)

mp

2040 °C (lit.)

mp

2040 °C (lit.)

cation traces

As: ≤0.0005%, Fe: ≤0.02%

cation traces

-

cation traces

-

cation traces

-

surface area

120-190 m2/g

surface area

-

surface area

-

surface area

-

impurities

≤0.5% substances extractable by water

impurities

<0.03% Fe2O3, <0.4% Na2O

impurities

-

impurities

-

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


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