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EC number: 274-126-1 | CAS number: 69808-32-8
Particle size distribution (Granulometry)
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:
- 2 018
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
- 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:
Constituent 1
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.
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