Butyl 2-[[3-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-hydroxy-1-naphthyl]azo]benzoate

PBT assessment

PBT assessment: overall result

Reference

Name:

C.I. Pigment Red 208

Type of composition:

legal entity composition of the substance

State / form:

solid: nanoform

Related composition:

C.I. Pigment Red 208

Reference substance:

C.I. Pigment Red 208

Type of information reported:

single nanoform

Name of nanoform:

C.I. Pigment Red 208 - joint submission

Shape category:

spheroidal

Shape:

cubic

Pure shape:

no

Typical composition:

ca. 10 %

Range:

> 0 - < 20 %

Shape category:

spheroidal

Shape:

spherical

Pure shape:

no

Typical composition:

ca. 90 %

Range:

> 80 - < 100 %

Shape category:

spheroidal

Percentile:

D10

Typical value:

ca. 0.018 μm

Range:

ca. 0.01 - ca. 0.035 μm

Percentile:

D50

Typical value:

ca. 0.027 μm

Range:

ca. 0.01 - ca. 0.045 μm

Percentile:

D90

Typical value:

ca. 0.039 μm

Range:

ca. 0.02 - ca. 0.055 μm

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

>= 90 - ca. 100 %

Structure:

crystalline

Name:

C.I. Pigment Red 208

Pure structure:

yes

Crystal system:

monoclinic

Bravais lattice:

primitive moniclinic

Typical specific surface area:

ca. 55 m²/g

Range of specific surface area:

>= 38 - <= 72 m²/g

Skeletal density:

1.424 g/cm³

Surface treatment applied:

no

PBT status:

the substance is not PBT / vPvB

Justification:

Based on evaluation of the data described below it is concluded here that Pigment Red 208

·   is not inherently biodegradable and is considered to fulfil the P criterion

·   is not fulfilling the B (or vB) criterion

·   and is not fulfilling the T criterion

and therefore is evaluated to be neither PBT nor vPvB substances.

Overall conclusion:

Based on the assessment described in the subsections below, PR208 is not considered to be PBT /vPvB.

Likely routes of exposure:

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