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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:
2017-03-29 - 2017-05-09
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
GLP compliance:
yes (incl. QA statement)
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: 608031
- Expiration date of the lot/batch: 25. Oct. 2018
- Purity test date: not stated

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: ambient temperature
- Stability under test conditions: assumed stable
- Solubility and stability of the test substance in the solvent/vehicle: no solvent/vehicle used
- Reactivity of the test substance with the solvent/vehicle of the cell culture medium: no solvent/vehicle used

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
none
Mass median aerodynamic diameter:
98 µm
Key result
Percentile:
D10
Mean:
16 µm
St. dev.:
0.07
Key result
Percentile:
D50
Mean:
98 µm
St. dev.:
0.07
Key result
Percentile:
D90
Mean:
389 µm
St. dev.:
31.32
Conclusions:
Ammonium Benzoate has a median paricle size of D50 = 98 µm.
Executive summary:

The test item Ammonium Benzoate has a median particle size D50 = 98 µm, which was determined by laser diffraction measurement.

Description of key information

OECD-Guideline Study,

the median particle size D50 is 98 µm.

Additional information