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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
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Reliable method

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
Laser diffraction particle sizing
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamidate
EC Number:
278-575-4
EC Name:
Sodium N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamidate
Cas Number:
76918-62-2
Molecular formula:
C18H13N3O3.Na

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Mean:
ca. 2.8 µm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D10
Mean:
2.1 µm
St. dev.:
0.1
Percentile:
D50
Mean:
10.1 µm
St. dev.:
1
Percentile:
D90
Mean:
59.9 µm
St. dev.:
15

Any other information on results incl. tables

Concentration: 0,0007 %

d(0.5): 10.1 µm (Median)

Applicant's summary and conclusion

Executive summary:
The mass median diameter of the test item using Malvern laser diffraction (volumetric distribution) was determined to be 10.1 µm.