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PBT assessment

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PBT assessment: overall result

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Name:
PR 264
Type of composition:
legal entity composition of the substance
State / form:
solid: particulate/powder
Reference substance:
PR 264
Name:
PR 264
Type of composition:
legal entity composition of the substance
State / form:
solid: nanoform
Reference substance:
PR 264
Type of information reported:
single nanoform
Shape category:
spheroidal
Shape:
cubic
Pure shape:
yes
Shape category:
spheroidal
Percentile:
D10
Typical value:
ca. 30.8 nm
Range:
ca. 26 - ca. 36 nm
Percentile:
D50
Typical value:
ca. 42.3 nm
Range:
ca. 40 - ca. 45 nm
Percentile:
D90
Typical value:
ca. 57.7 nm
Range:
ca. 53 - ca. 63 nm
Typical length:
ca. 69.2 nm
Range of length:
ca. 26.9 - ca. 115.4 nm
Typical lateral dimension 1:
ca. 42.3 nm
Range of lateral dimension 1:
ca. 19.2 - ca. 84.6 nm
Typical lateral dimension 2:
ca. 42.3 nm
Range of lateral dimension 2:
ca. 19.2 - ca. 84.6 nm
Typical aspect ratio (:1):
ca. 1.6 :1
Range of aspect ratio (:1):
>= 1 - <= 6
Fraction of constituent particles in the size range 1-100 nm:
ca. 99 - ca. 100 %
Structure:
crystalline
Name:
cube
Pure structure:
yes
Typical specific surface area:
ca. 87.8 m²/g
Range of specific surface area:
ca. 80 - ca. 96 m²/g
Typical volume specific surface area:
ca. 117.6 m²/cm³
Range of volume specific surface area:
ca. 105 - ca. 130 m²/cm³
Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
PBT status:
the substance is not PBT / vPvB
Justification:

The registered substance is neither bioaccumulating (B) nor toxic (T), but persisiting (vP/P). Therefore, it is not PBT/vPvB.