Registration Dossier
Registration Dossier
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EC number: 695-268-4 | CAS number: 571188-59-5
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Remarks:
- laser diffraction test
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- November 2017 - February 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Qualifier:
- according to guideline
- Guideline:
- other: IPAC MT 187 “Particle Size Analysis by Laser Diffraction”, Handbook K,
- GLP compliance:
- yes
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
Test material
- Reference substance name:
- tert-butyl 4-(6-aminopyridin-3-yl)piperazine-1-carboxylate
- Cas Number:
- 571188-59-5
- Molecular formula:
- C14H22N4O2
- IUPAC Name:
- tert-butyl 4-(6-aminopyridin-3-yl)piperazine-1-carboxylate
- Test material form:
- solid: bulk
Constituent 1
Results and discussion
- Mass median aerodynamic diameter:
- ca. 64.53 µm
- Geometric standard deviation:
- ca. 0.8
Particle sizeopen allclose all
- Key result
- Percentile:
- D10
- Mean:
- < 14.793 µm
- St. dev.:
- 0.222
- Key result
- Percentile:
- D50
- Mean:
- < 64.53 µm
- St. dev.:
- 0.181
- Key result
- Percentile:
- D90
- Mean:
- < 148.458 µm
- St. dev.:
- 1.716
Any other information on results incl. tables
Average**
Volume weighted mean 74.432
Median 64.530
Mode 82.545
MMAD * 71.567
d10 - 10 % of material is < 14.793
d50 - 50 % of material is < 64.530
d90 - 90 % of material is < 148.458
All results are in μm
* Mass median aerodynamic diameter
** Average result is calculated from the entirety of data captured in each run and is not a simple
arithmetic mean.
Applicant's summary and conclusion
- Conclusions:
- Average** % STDVP
d10 - 10 % of material is < 14.793 1.5
d50 - 50 % of material is < 64.530 0.3
d90 - 90 % of material is < 148.458 1.2
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