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Particle size distribution (Granulometry)

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Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-08-17
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

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:
1981
Deviations:
no
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
2009
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: CIPAC MT 187
Version / remarks:
2009
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
2017-02-28
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulphonamide
EC Number:
233-360-4
EC Name:
N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulphonamide
Cas Number:
10128-55-9
Molecular formula:
C24H16N2O4S
IUPAC Name:
N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulphonamide
Test material form:
solid: particulate/powder
Details on test material:
- Appearance: Off white powder
Specific details on test material used for the study:
- Storage conditions: Ambient temperature, dry, tightly closed in original container

Results and discussion

Remarks on result:
not measured/tested
Particle sizeopen allclose all
Percentile:
D10
Mean:
3.8 µm
St. dev.:
0
Percentile:
D50
Mean:
14.3 µm
St. dev.:
0
Percentile:
D90
Mean:
43.25 µm
St. dev.:
0.92
Particle size distribution at different passages
Remarks on result:
not measured/tested

Any other information on results incl. tables

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

Test series 1:

D10:      3.8 µm

D50:      14.3 µm         (Median diameter)

D90:      43.9 µm

Test series 2:

D10:      3.8 µm

D50:      14.3 µm         (Median diameter)

D90:      42.6 µm

Average

D10:      3.8 µm

D50:      14.3 µm         (Median diameter)

D90:      43.2 µm

Final Results

The test itemN-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulphonamidehas a median particle size D50 = 14 µm, which was determined by laser diffraction measurement in accordance to inter alia ISO 13320 (2009) andCIPAC MT 187 (2009) method.

Applicant's summary and conclusion

Conclusions:
The test item N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulphonamide has following particle size distribution, which was determined by laser diffraction measurement in accordance to inter alia ISO 13320 (2009) and CIPAC MT 187 (2009) method:
D10: 3.8 µm
D50: 14.3 µm (Median diameter)
D90: 43.2 µm