Registration Dossier

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:
2009
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: SOP_Pulverrinne_3 bar_gs; air
Deviations:
not specified
Principles of method if other than guideline:
Standard operating procedure: pulverrinne 3 bar_gs; air
Apparatus mastersizer 2000, unit: Scirocco 2000
GLP compliance:
not specified
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
5-amino-1,3-dihydro-2H-benzimidazol-2-one
EC Number:
202-401-8
EC Name:
5-amino-1,3-dihydro-2H-benzimidazol-2-one
Cas Number:
95-23-8
Molecular formula:
C7H7N3O
IUPAC Name:
5-amino-1,3-dihydro-2H-benzimidazol-2-one

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Mean:
31.9 µm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D50
Mean:
31.9 µm
St. dev.:
4.1
Percentile:
D10
Mean:
3.8 µm
St. dev.:
0.2
Percentile:
D90
Mean:
281.6 µm
St. dev.:
72.4

Applicant's summary and conclusion

Executive summary:

The median value D50 for the particle size distribution of the test item is 31.9 µm, measured with Malvern Mastersizer 2000, unit Scirocco apparatus