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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 25.02.2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP-Study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
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:
Sodium 2-methylbutan-2-olate
EC Number:
238-639-4
EC Name:
Sodium 2-methylbutan-2-olate
Cas Number:
14593-46-5
Molecular formula:
C5H12O.Na
IUPAC Name:
sodium 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:
> 4.3 - < 4.4 µm
Percentile:
D50
Mean:
> 34.3 - < 34.4 µm
Percentile:
D90
Mean:
> 193.3 - < 249.7 µm

Any other information on results incl. tables

Apparatus: Master-Sizer by Malvern Instrument with a measuring cell Scirocco 2000, Zeiss Axiolab Microscipe

Measurement time: 8s.

Each Measurement was started with a fresh sample.

Applicant's summary and conclusion

Conclusions:
The median particle size L50 of the test item deduced from the particle size distributions was 34.3 µm.
The median particle size L10 of the test item deduced from the particle size distributions was 4.3 µm.
The median particle size L90 of the test item deduced from the particle size distributions was 221.5 µm.