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Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 12 NOVEMBER 2019 to 27 NOVEMBER 2019
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report date:
2019

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions) - Method B: Fibre Length and Diameter Distributions
Version / remarks:
OECD Guidelines for the Testing of Chemicals, Method No. 110, adopted 12. Mai 1981: " Particle Size Analysis by Laser Diffraction".
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
Laser scattering/diffraction
Type of particle tested:
agglomerate
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
1,4-bis(isopropylamino)anthraquinone
EC Number:
238-101-9
EC Name:
1,4-bis(isopropylamino)anthraquinone
Cas Number:
14233-37-5
Molecular formula:
C20H22N2O2
IUPAC Name:
1,4-bis[(propan-2-yl)amino]-9,10-dihydroanthracene-9,10-dione
Test material form:
solid: particulate/powder

Results and discussion

Mass median aerodynamic diameter:
ca. 51.51 µm
Geometric standard deviation:
ca. 0.58
Particle sizeopen allclose all
Percentile:
D90
Mean:
ca. 62.12 µm
St. dev.:
1.34
Remarks on result:
other: RODOS/L-4 bar
Key result
Percentile:
D50
Mean:
ca. 13.16 µm
St. dev.:
0.2
Remarks on result:
other: RODOS/L-4 bar
Percentile:
D10
Mean:
ca. 2.21 µm
St. dev.:
0.01
Remarks on result:
other: RODOS/L-4 bar
Percentile:
D90
Mean:
ca. 73.7 µm
St. dev.:
1.7
Remarks on result:
other: RODOS/L-2 bar
Key result
Percentile:
D50
Mean:
ca. 16.45 µm
St. dev.:
0.32
Remarks on result:
other: RODOS/L-2 bar
Percentile:
D10
Mean:
ca. 2.51 µm
St. dev.:
0.02
Remarks on result:
other: RODOS/L-2 bar
Percentile:
D90
Mean:
ca. 85.58 µm
St. dev.:
0.68
Remarks on result:
other: RODOS/L-1 bar
Key result
Percentile:
D50
Mean:
ca. 19.34 µm
St. dev.:
0.11
Remarks on result:
other: RODOS/L-1 bar
Percentile:
D10
Mean:
ca. 2.77 µm
St. dev.:
0.01
Remarks on result:
other: RODOS/L-1 bar
Percentile:
D90
Mean:
ca. 157.21 µm
St. dev.:
1.63
Remarks on result:
other: GRADIS/L
Key result
Percentile:
D50
Mean:
ca. 51.51 µm
St. dev.:
0.58
Remarks on result:
other: GRADIS/L
Percentile:
D10
Mean:
ca. 9.08 µm
St. dev.:
0.11
Remarks on result:
other: GRADIS/L

Applicant's summary and conclusion

Conclusions:
The test item doesn't meet the nanomaterial requirements, son can't be considered nanomaterial.