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Classification & Labelling & PBT assessment

PBT assessment

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PBT assessment: overall result

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Name:
Aluminium oxide
Type of composition:
boundary composition of the substance
State / form:
solid: bulk
Reference substance:
Composition 1
Name:
Aluminium oxide
Type of composition:
legal entity composition of the substance
State / form:
solid: bulk
Reference substance:
Composition 1
Name:
High surface area alumina (nanoform)
Type of composition:
boundary composition of the substance
State / form:
solid: nanoform
Reference substance:
Composition 1
Type of information reported:
single nanoform
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes
Shape category:
spheroidal
Percentile:
D10
Typical value:
5 nm
Range:
>= 3 - <= 6 nm
Percentile:
D50
Typical value:
7 nm
Range:
>= 5 - <= 12 nm
Percentile:
D90
Typical value:
9 nm
Range:
>= 7 - <= 25 nm
Fraction of constituent particles in the size range 1-100 nm:
ca. 100 %
Structure:
crystalline
Name:
gamma-Al2O3
Pure structure:
no
Range:
>= 1 - <= 100 %
Structure:
crystalline
Name:
alpha-Al2O3
Pure structure:
no
Range:
>= 0 - <= 10 %
Structure:
crystalline
Name:
kappa-Al2O3
Pure structure:
no
Range:
>= 0 - <= 70 %
Typical specific surface area:
ca. 208 m²/g
Range of specific surface area:
>= 150 m²/g
Skeletal density:
ca. 3.1 g/cm³
Surface treatment applied:
no
PBT status:
the substance is not PBT / vPvB
Justification:

As a result of the hazard assessment and PBT/vPvB assessment it is found that substance aluminium oxide (CAS# 1344 -28 -1) does not meet the criteria for classification as hazardous (according to Directives 67/548/EEC and 1272/2008/EC) nor is it considered to be a PBT/vPvB. An exposure assessment and the subsequent step of risk characterisation is not required.

Likely routes of exposure:

Because the substance does not fulfil the PBT and vPvB criteria, no emission characterisation needs to be performed.