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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:
key study
Study period:
11.11.2014 to 07.01.2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2014
Report date:
2015

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: CIPAC MT 187: Particle Size Analysis by Laser Diffraction
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: IS013320 :2009: Particle Size Analysis- Laser Diffraction Methods
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
Potassium 2-methylbutan-2-olate
EC Number:
255-272-5
EC Name:
Potassium 2-methylbutan-2-olate
Cas Number:
41233-93-6
Molecular formula:
C5H12O.K
IUPAC Name:
potassium 2-methylbutan-2-olate
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D10
Mean:
5 µm
Remarks on result:
other: median particle size
Percentile:
D50
Mean:
86 µm
Remarks on result:
other: median particle size
Percentile:
D90
Mean:
463.6 µm
Remarks on result:
other: median particle size

Any other information on results incl. tables

Two test series of three each measurements where performed.

Applicant's summary and conclusion

Conclusions:
The median particle size Lsa of the test item deduced from the particle size distributions was 86.0 µm .
The particle size L10 of the test item deduced from the particle size distributions was 5.0 µm.
The particle size L90 of the test item deduced from the particle size distributions was 463.6 µm.