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PBT assessment

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PBT assessment: overall result

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Name:
Pigment Brown 41
Type of composition:
legal entity composition of the substance
State / form:
solid: nanoform
Related composition:
Pigment Brown 41
Reference substance:
Pigment Brown 41
Type of information reported:
single nanoform
Name of nanoform:
C.I. Pigment Brown 41 - joint submission
Shape category:
spheroidal
Remarks:
multimodal shapes containing about 50% spheroidal particles and about 50% elongated particles
Shape:
cubic
Pure shape:
no
Typical composition:
ca. 45 %
Range:
> 19 - < 60 %
Shape category:
spheroidal
Remarks:
multimodal shapes containing about 50% spheroidal particles and about 50% elongated particles
Shape:
spherical
Pure shape:
no
Typical composition:
ca. 5 %
Range:
> 1 - < 10 %
Shape category:
elongated
Remarks:
multimodal shapes containing about 50% spheroidal particles and about 50% elongated particles
Shape:
rod
Pure shape:
no
Typical composition:
ca. 50 %
Range:
> 30 - < 80 %
Shape category:
spheroidal
Remarks:
multimodal shapes containing about 50% spheroidal particles and about 50% elongated particles
Percentile:
D10
Typical value:
ca. 0.025 μm
Range:
ca. 0.01 - ca. 0.045 μm
Percentile:
D50
Typical value:
ca. 0.042 μm
Range:
ca. 0.02 - ca. 0.06 μm
Percentile:
D90
Typical value:
ca. 0.069 μm
Range:
ca. 0.05 - ca. 0.09 μm
Fraction of constituent particles in the size range 1-100 nm:
>= 80 - ca. 100 %
Shape category:
elongated
Remarks:
multimodal shapes containing about 50% spheroidal particles and about 50% elongated particles
Percentile:
D10
Typical value:
ca. 0.025 μm
Range:
ca. 0.01 - ca. 0.045 μm
Percentile:
D50
Typical value:
ca. 0.042 μm
Range:
ca. 0.02 - ca. 0.06 μm
Percentile:
D90
Typical value:
ca. 0.069 μm
Range:
ca. 0.05 - ca. 0.09 μm
Typical length:
ca. 0.216 μm
Range of length:
ca. 0.055 - ca. 0.38 μm
Typical aspect ratio (:1):
ca. 4.2 :1
Range of aspect ratio (:1):
>= 4 - <= 4.4
Fraction of constituent particles in the size range 1-100 nm:
>= 80 - ca. 100 %
Structure:
crystalline
Name:
C.I. Pigment Brown 41
Pure structure:
yes
Typical composition:
100 %
Crystal system:
other: unknown
Typical specific surface area:
ca. 48 m²/g
Range of specific surface area:
>= 33 - <= 63 m²/g
Skeletal density:
1.562 g/cm³
Surface treatment applied:
no
Name:
Pigment Brown 41
Type of composition:
boundary composition of the substance
State / form:
solid: nanoform
Reference substance:
Pigment Brown 41
Type of information reported:
single nanoform
Name of nanoform:
C.I. Pigment Brown 41 - joint submission
Shape category:
spheroidal
Shape:
cubic
Pure shape:
no
Range:
> 19 - < 60 %
Shape category:
spheroidal
Shape:
spherical
Pure shape:
no
Range:
> 1 - < 10 %
Shape category:
elongated
Shape:
rod
Pure shape:
no
Range:
> 30 - < 80 %
Shape category:
spheroidal
Percentile:
D10
Range:
ca. 0.01 - ca. 0.055 μm
Percentile:
D50
Range:
ca. 0.015 - ca. 0.07 μm
Percentile:
D90
Range:
ca. 0.04 - ca. 0.1 μm
Fraction of constituent particles in the size range 1-100 nm:
>= 80 - ca. 100 %
Shape category:
elongated
Percentile:
D10
Range:
ca. 0.01 - ca. 0.055 μm
Percentile:
D50
Range:
ca. 0.015 - ca. 0.07 μm
Percentile:
D90
Range:
ca. 0.04 - ca. 0.1 μm
Range of length:
> 0.01 - < 0.54 μm
Range of aspect ratio (:1):
>= 3.8 - <= 4.6
Fraction of constituent particles in the size range 1-100 nm:
>= 80 - ca. 100 %
Structure:
crystalline
Name:
C.I. Pigment Brown 41 - joint submission
Pure structure:
yes
Range of specific surface area:
>= 5 - <= 125 m²/g
Surface treatment applied:
no
PBT status:
the substance is not PBT / vPvB
Justification:

It is concluded here that the registration substance


 - is not ready biodegradable and are considered to fulfil the (v)P criterion


- is not fulfilling the B (or vB) criterion


- and is not fulfilling the T criterion


 


and therefore is evaluated to be not PBT or vPvB substance.

Likely routes of exposure:

The submission substance is not PBT or vPvB. Therefore no emission characterisation is required.