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Physical & Chemical properties

Particle size distribution (Granulometry)

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
31st July to 28th September 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Qualifier:
according to guideline
Guideline:
other: CIPAC MT 187
GLP compliance:
yes
Type of method:
Laser scattering/diffraction
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: 20161118
- Expiration date of the lot/batch: 17/11/2017
- Purity test date: 18/11/2016
- Purity: 99.74%
- Appearance: White to off-white crytalline powder


STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: At room temperature protected from light
- Stability under test conditions: Stable
Mass median aerodynamic diameter:
ca. 319.899 µm
Geometric standard deviation:
ca. 0.013
Key result
Percentile:
D10
Mean:
127.167 µm
St. dev.:
4.524
Key result
Percentile:
D50
Mean:
284.989 µm
St. dev.:
3.36
Key result
Percentile:
D90
Mean:
494.367 µm
St. dev.:
6.314
No.:
#1
Size:
>= 121.844 - <= 487.6 µm
Distribution:
>= 10 - <= 90 %
No.:
#2
Size:
>= 124.985 - <= 487.714 µm
Distribution:
>= 10 - <= 90 %
No.:
#3
Size:
>= 124.296 - <= 492.96 µm
Distribution:
>= 10 - <= 90 %
No.:
#4
Size:
>= 129.625 - <= 500.842 µm
Distribution:
>= 10 - <= 90 %
No.:
#5
Size:
>= 134.584 - <= 502.454 µm
Distribution:
>= 10 - <= 90 %
Conclusions:
The substance was determined to have a mass median aerodynamic diameter of 319.899 µm and a geometric standard deviation of 0.013. The mean size for the 10, 50 and 90 percentile was 127.167, 284.989 and 494.367 µm with a deviation of 4.524, 3.3 and, 6.314, respectively.
Executive summary:

The particle size of 4-phenylbenzophenone has been evaluated in accordance with ISO 13320 and CIPAC MT 187 via Laser scattering/diffraction in a GLP laboratory. The substance was deemed to have a mass median aerodynamic diameter of 319.899 µm and a geometric standard deviation of 0.013. The mean size for the 10, 50 and 90 percentile was 127.167, 284.989 and 494.367 µm with a deviation of 4.524, 3.3 and 6.314, respectively.

Description of key information

The particle size of 4-phenylbenzophenone has been evaluated in accordance with ISO 13320 and CIPAC MT 187 via Laser scattering/diffraction in a GLP laboratory. The substance was deemed to have a mass median aerodynamic diameter of 319.899 µm and a geometric standard deviation of 0.013. The mean size for the 10, 50 and 90 percentile was 127.167, 284.989 and 494.367 µm with a deviation of 4.524, 3.3 and 6.314, respectively.

Additional information