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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:
2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: well performed study following acknowledged procedures

Data source

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

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: company SOP: particle size distribution
Deviations:
not specified
Principles of method if other than guideline:
Volumetric distribution determined with Malvern mastersizer 2000, unit Scirocc 2000
GLP compliance:
no
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
m-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulphonic acid
EC Number:
204-303-0
EC Name:
m-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulphonic acid
Cas Number:
119-17-5
Molecular formula:
C10H10N2O4S
IUPAC Name:
3-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzene-1-sulfonic acid

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Mean:
31 µm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D10
Mean:
5.2 µm
St. dev.:
0.2
Percentile:
D50
Mean:
31 µm
St. dev.:
4
Percentile:
D90
Mean:
120 µm
St. dev.:
26

Applicant's summary and conclusion

Conclusions:
The mass median diameter of the test item determiend with the Malverb Mastersiter 2000, unit Scirocco 2000 is 31 µm