Registration Dossier

Diss Factsheets

Physical & Chemical properties

Particle size distribution (Granulometry)

Currently viewing:

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 12 DECEMBER 2018 to 14 DECEMBER 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
The granulometry was performed for determinate the oxidation properties of test item according EU A.17

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: EU A.17
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
sieving
Type of particle tested:
aggregate
Type of distribution:
other: Aggregate

Test material

Constituent 1
Chemical structure
Reference substance name:
1-butyl-5-[(4-chlorophenyl)azo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile
EC Number:
274-126-1
EC Name:
1-butyl-5-[(4-chlorophenyl)azo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile
Cas Number:
69808-32-8
Molecular formula:
C17H17ClN4O2
IUPAC Name:
1-butyl-5-[(4-chlorophenyl)azo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile
Test material form:
solid: particulate/powder
Details on test material:
- State of aggregation: powder
- Particle size distribution: not determined
- Mass median aerodynamic diameter (MMAD): not determined
- Geometric standard deviation (GSD): not determined
- Shape of particles: not determined
- Surface area of particles: not determined
- Crystal structure: not determined
- Coating: none
- Surface properties: not determined
- Density: 1.3526 ± 0.0010 g/cm3 at 20.0 ± 0.2°C
- Moisture content: <0.5%
- Residual solvent: not detected
- Activation: none
- Stabilisation: none
- Other:

Results and discussion

Mass median aerodynamic diameter:
> 125 µm
Particle size
Percentile:
other: A particle size < 125 µm was tried to achieve using the following procedure: In a first attempt the test item was tried to sieve through a 125 µm sieve. As the test item did not pass the sieve, the test item was dried by a heating chamber. Afterwards in a
Mean:
> 125 µm
St. dev.:
0
Remarks on result:
other: A particle size < 125 µm was tried to achieve using the following procedure: In a first attempt the test item was tried to sieve through a 125 µm sieve. As the test item did not pass the sieve, the test item was dried by a heating chamber. Afterwards in a

Applicant's summary and conclusion

Conclusions:
A particle size < 125 µm was tried to achieve using the following procedure:
In a first attempt the test item was tried to sieve through a 125 µm sieve. As the test item
did not pass the sieve, the test item was dried by a heating chamber. Afterwards in a second attempt the test item was tried so sieve again and grounded. As it was not possible,
the test item was used as given.

Categories Display