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Physical & Chemical properties

Nanomaterial dustiness

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Administrative data

Endpoint:
nanomaterial dustiness
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Feb 27 to Mar 13, 2020
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2020
Report date:
2020

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EN 15051-2 (Workplace exposure. Measurement of the dustiness of bulk materials - Rotating drum method)
GLP compliance:
no
Type of method:
rotating cylinder
Details on methods and data evaluation:
Average material weight charged to drum: 11.7g for 35cm3

Test material

Constituent 1
Chemical structure
Reference substance name:
4,4'-diamino[1,1'-bianthracene]-9,9',10,10'-tetraone
EC Number:
223-754-4
EC Name:
4,4'-diamino[1,1'-bianthracene]-9,9',10,10'-tetraone
Cas Number:
4051-63-2
Molecular formula:
C28H16N2O4
IUPAC Name:
4,4'-diamino-1,1'-bianthracene]-9,9',10,10'-tetraone
Details on test material:
purity 99%
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch number of test material: A1048412P2

INFORMATION ON NANOMATERIALS
- Chemical Composition:
see 1.2 Composition
- Density: 0.42 g/cm3
- Particle size & distribution:
see 1.4 Analytical Information 'Analytical information'
- Specific surface area:
see 1.4 Analytical Information 'Analytical information'
- Moisture: 0.15% (acc. to EN15051-1)


Results and discussion

Dustiness indexopen allclose all
Key result
Mean:
16 134 mg/kg
St. dev.:
1 677 mg/kg
Remarks on result:
other: Inhalable dustiness
Key result
Mean:
3 816 mg/kg
St. dev.:
469.47 mg/kg
Remarks on result:
other: Thoracic dustiness
Key result
Mean:
373 mg/kg
St. dev.:
20.52 mg/kg
Remarks on result:
other: Respirable dustiness

Any other information on results incl. tables

The volume-rated particle size distribution was analysed by laser diffraction method (adopted from ISO 13320:2009) for the same lot in parallel (repeatability in accordance with ISO 13320):


D(0.1): 1.53 µm


D(0.5): 16.3 µm


D(0.9): 51.4 µm

Applicant's summary and conclusion

Conclusions:
The dustiness of 4,4'-diamino[1,1'-bianthracene]-9,9',10,10'-tetraone was determined according to EN15051-2. The inhalable, thoracic and respirable dustiness were determined as 'high'.
Executive summary:

The dustiness of 4,4'-diamino[1,1'-bianthracene]-9,9',10,10'-tetraone was determined according to EN15051-2. The inhalable, thoracic and respirable dustiness mas fractions were determined as 14513 mg/kg, 6209 mg/kg and 4119 mg/kg, respectively. This corresponded to categorisation as high dustiness for all fractions.