Carbon black

PBT assessment

PBT assessment: overall result

Reference

Name:

carbon black

Type of composition:

legal entity composition of the substance

State / form:

solid: nanoform

Reference substance:

carbon black

Type of information reported:

set of nanoforms

Name of set of nanoforms:

BC_set_not treated

Shape category:

spheroidal

Shape:

spherical

Pure shape:

yes

Shape category:

spheroidal

Percentile:

D10

Range:

>= 15.1 - <= 22 nm

Percentile:

D50

Range:

>= 22 - <= 38.8 nm

Percentile:

D90

Range:

>= 31 - <= 56 nm

Fraction of constituent particles in the size range 1-100 nm:

>= 99.9 - <= 100 %

Structure:

amorphous

Name:

Amorphous carbon black

Pure structure:

yes

Range:

ca. 100 %

Crystal system:

not applicable

Range of specific surface area:

>= 151.4 - <= 251 m²/g

Surface treatment applied:

no

PBT status:

the substance is not PBT / vPvB

Justification:

Carbon is widely distributed in nature and an essential element in the components of all living organisms. Carbon black is not classified as CMR and there is no other evidence of chronic toxicity. Carbon black does therefore not fulfil the criteria given in Annex XIII. It is concluded that carbon black is not a PBT/vPvB substance.

Please see CSR for further information on PBT assessment.