Registration Dossier
Registration Dossier
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EC number: 201-999-8 | CAS number: 90-50-6
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 187
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- agglomerate
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- 3,4,5-trimethoxycinnamic acid
- EC Number:
- 201-999-8
- EC Name:
- 3,4,5-trimethoxycinnamic acid
- Cas Number:
- 90-50-6
- Molecular formula:
- C12H14O5
- IUPAC Name:
- 3-(3,4,5-trimethoxyphenyl)acrylic acid
- Test material form:
- solid: crystalline
- Remarks:
- light yellow
- Details on test material:
- CH03216 / E1A
Constituent 1
Results and discussion
- Mass median aerodynamic diameter:
- 26.805 µm
- Geometric standard deviation:
- 0.004
Particle sizeopen allclose all
- Percentile:
- D10
- Mean:
- 8.645 µm
- St. dev.:
- 0.022
- Percentile:
- D50
- Mean:
- 22.818 µm
- St. dev.:
- 0.111
- Percentile:
- D90
- Mean:
- 59.434 µm
- St. dev.:
- 0.556
Applicant's summary and conclusion
- Conclusions:
- The results of the laser diffraction test conducted to determine the particle size of 3,4,5- Trimethoxycinnamic Acid are summarised below. The analysis was conducted using the dry powder module (DPM).
Volume weighted mean: 29.754 µm
Median 22.818 µm
Mode 22.996 µm
MMAD (mass median aerodynamic diameter) 26.805 µm
d10 - 10 % of material is < 8.645 µm
d50 - 50 % of material is < 22.818 µm
d90 - 90 % of material is < 59.434 µm
volume of sample < 10.00 μm 13.47 %
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