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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:
25 Aug 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
GLP guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
Version / remarks:
adopted in 1981
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
Version / remarks:
adopted in 1996
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
adopted in 2009
GLP compliance:
yes (incl. QA statement)
Remarks:
Hess. Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
Ethyl 9-oxo-9H-thioxanthene-2-carboxylate
EC Number:
280-960-7
EC Name:
Ethyl 9-oxo-9H-thioxanthene-2-carboxylate
Cas Number:
83817-60-1
Molecular formula:
C16H12O3S
IUPAC Name:
ethyl 9-oxo-9H-thioxanthene-2-carboxylate
Specific details on test material used for the study:
- Appearance: Pale yellow solid
- Expiration date of the lot/batch: 2018-05-18

Results and discussion

Particle sizeopen allclose all
Percentile:
D10
Mean:
4.54 µm
Remarks on result:
other: No St. dev. given in study report
Percentile:
D50
Mean:
23 µm
Remarks on result:
other: Median particle size; no St. dev. given in study report
Percentile:
D90
Mean:
110.8 µm
Remarks on result:
other: No St. dev. given in study report

Any other information on results incl. tables

Particle Size Distribution

Two test series of 3 measurements each were performed with the test item.

 

Test series 1:

D10 : 4.47 µm

D50 : 22.2 µm (Median diameter)

D90 : 108.4 µm

 

Test series 2:

D10 : 4.62 µm

D50 : 23.1 µm (Median diameter)

D90 : 113.3 µm

 

Average:

D10 : 4.54 µm

D50 : 22.7 µm (Median diameter)

D90 : 110.8 µm

Applicant's summary and conclusion