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Diss Factsheets

Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
other information
Study period:
October 2013
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: No guideline but a reliable method is use.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013
Report date:
2013

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
By light scattering by the particles.
It uses the "Mie theory" to predict how light is scattered by the particles. Each particle size will have its own characteristic diffraction image. The diffraction pattern produced by the particles is measured, and the particle size is calculated from the result of this measurement.
GLP compliance:
no
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
Perhydroimidazo[4,5-d]imidazole-2,5-dione
EC Number:
207-821-5
EC Name:
Perhydroimidazo[4,5-d]imidazole-2,5-dione
Cas Number:
496-46-8
Molecular formula:
C4H6N4O2
IUPAC Name:
perhydroimidazo[4,5-d]imidazole-2,5-dione
Constituent 2
Reference substance name:
glycoluril
IUPAC Name:
glycoluril
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Mean:
203 µm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D10
Mean:
82 µm
Percentile:
D50
Mean:
203 µm
Percentile:
D90
Mean:
376 µm
Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
0 - 10 µm
Distribution:
0 %
No.:
#2
Size:
10 - 200 µm
Distribution:
48.9 %
No.:
#3
Size:
200 - 600 µm
Distribution:
51 %
No.:
#4
Size:
> 600 µm
Distribution:
0 %

Applicant's summary and conclusion