2,9-dichloro-5,12-dihydroquino[2,3-b]acridine-7,14-dione

PBT assessment

PBT assessment: overall result

Reference

Reference 1

Name:

C.I. Pigment Red 202

Type of composition:

boundary composition of the substance

State / form:

solid: nanoform

Reference substance:

C.I. Pigment Red 202

Type of information reported:

single nanoform

Name of nanoform:

C.I. Pigment Red 202 - joint submission

Shape category:

spheroidal

Remarks:

multimodal shapes containing spheroidal and elongated particles

Shape:

cubic

Pure shape:

no

Range:

> 60 - < 100 %

Shape category:

spheroidal

Remarks:

multimodal shapes containing spheroidal and elongated particles

Shape:

spherical

Pure shape:

no

Range:

> 0 - < 40 %

Shape category:

elongated

Remarks:

multimodal shapes containing spheroidal and elongated particles

Shape:

rod

Pure shape:

yes

Range:

> 0 - < 15 %

Shape category:

spheroidal

Remarks:

multimodal shapes containing spheroidal and elongated particles

Percentile:

D10

Range:

>= 0.01 - <= 0.03 μm

Percentile:

D50

Range:

>= 0.01 - <= 0.04 μm

Percentile:

D90

Range:

>= 0.01 - <= 0.05 μm

Additional information:

The particle size distribution relates to both shape categories.

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

>= 90 - <= 100 %

Shape category:

elongated

Remarks:

multimodal shapes containing spheroidal and elongated particles

Percentile:

D10

Range:

>= 0.01 - <= 0.03 μm

Percentile:

D50

Range:

>= 0.01 - <= 0.04 μm

Percentile:

D90

Range:

>= 0.01 - <= 0.05 μm

Range of length:

>= 0.04 - <= 0.14 μm

Range of aspect ratio (:1):

>= 3 - <= 4.6

Additional information:

The particle size distribution relates to both shape categories.

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

>= 90 - <= 100 %

Structure:

crystalline

Name:

C.I. Pigment Red 202

Pure structure:

yes

Range of specific surface area:

>= 5 - <= 125 m²/g

Surface treatment applied:

no

Reference 2

Name:

C.I. Pigment Red 202

Type of composition:

legal entity composition of the substance

State / form:

solid: nanoform

Related composition:

C.I. Pigment Red 202

Reference substance:

C.I. Pigment Red 202

Type of information reported:

single nanoform

Name of nanoform:

C.I. Pigment Red 202 - joint submission

Shape category:

spheroidal

Remarks:

multimodal shapes containing spheroidal and elongated particles

Shape:

cubic

Pure shape:

no

Range:

> 60 - < 100 %

Shape category:

spheroidal

Remarks:

multimodal shapes containing spheroidal and elongated particles

Shape:

spherical

Pure shape:

no

Range:

> 0 - < 40 %

Shape category:

elongated

Remarks:

multimodal shapes containing spheroidal and elongated particles

Shape:

rod

Pure shape:

yes

Range:

> 0 - < 15 %

Shape category:

spheroidal

Remarks:

multimodal shapes containing spheroidal and elongated particles

Percentile:

D10

Range:

>= 0.01 - <= 0.03 μm

Percentile:

D50

Range:

>= 0.01 - <= 0.04 μm

Percentile:

D90

Range:

>= 0.01 - <= 0.05 μm

Additional information:

The particle size distribution relates to both shape categories. Due to the low number of elongated particles no scientifically sound separate evaluation for rods could be conducted. The smallest dimension of all particles had been considered.

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

>= 90 - <= 100 %

Shape category:

elongated

Remarks:

multimodal shapes containing spheroidal and elongated particles

Percentile:

D10

Range:

>= 0.01 - <= 0.03 μm

Percentile:

D50

Range:

>= 0.01 - <= 0.04 μm

Percentile:

D90

Range:

>= 0.01 - <= 0.05 μm

Range of length:

>= 0.05 - <= 0.12 μm

Range of aspect ratio (:1):

>= 3 - <= 4.6

Additional information:

The particle size distribution relates to both shape categories. Due to the low number of elongated particles no scientifically sound separate evaluation for rods could be conducted. The smallest dimension of all particles had been considered.

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

>= 90 - <= 100 %

Structure:

crystalline

Name:

C.I. Pigment Red 202

Pure structure:

yes

Range of specific surface area:

>= 40 - <= 80 m²/g

Skeletal density:

1.627 g/cm³

Surface treatment applied:

no

PBT status:

the substance is not PBT / vPvB

Justification:

Based on evaluation of the data described in the end point study record in IUCLID section 2.3 it is concluded here that the members of the Quinacridone Pigment Category

·   are not readily biodegradable and are considered to fulfil the P criterion

·   are not fulfilling the B (or vB) criterion

·   and are not fulfilling the T criterion

 

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

 

Overall conclusion:

Based on the assessment described in the subsections below the submission substances of the Category of Quinacridone Pigments are not considered to be PBT /vPvB.

Likely routes of exposure:

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