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EC number: 226-789-3 | CAS number: 5468-75-7
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Remarks:
- Laser diffraction is the well experienced standard procedure for pigments to determine particle size distribution of the substance as it is manufactured and delivered.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
- Report date:
- 2020
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2-methylphenyl)-3-oxobutyramide]
- EC Number:
- 226-789-3
- EC Name:
- 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2-methylphenyl)-3-oxobutyramide]
- Cas Number:
- 5468-75-7
- Molecular formula:
- C34H30Cl2N6O4
- IUPAC Name:
- 2-[(1E)-2-{3,3'-dichloro-4'-[(1E)-2-{1-[(2-methylphenyl)carbamoyl]-2-oxopropyl}diazen-1-yl]-[1,1'-biphenyl]-4-yl}diazen-1-yl]-N-(2-methylphenyl)-3-oxobutanamide
- Test material form:
- solid: nanoform
1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D50
- Mean:
- 4.17 µm
- St. dev.:
- 0.54
- Percentile:
- D10
- Mean:
- 0.59 µm
- St. dev.:
- 0.05
- Percentile:
- D90
- Mean:
- 23.84 µm
- St. dev.:
- 5.7
Any other information on results incl. tables
Given standard deviation is based on the general experience with pigments and the method. The estimated values are typical standard deviations:
D10: 4 % of D10 (minimum value 0.05 µm)
D50: 13 % of D50 (minimum value 0.1 µm)
D90: 29 % of D90 - D50
percentage below 0.10 µm: 0.00 %
percentage below 1.00 µm: 19.63 %
percentage below 15.00 µm: 83.94 %
percentage below 100.00 µm: 98.22 %
percentage below 200.00 µm: 99.50 %
Applicant's summary and conclusion
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