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EC number: 272-732-0 | CAS number: 68910-13-4
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- June 25, 2009
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study performed according to company guideline, similar to draft EU method
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: EU 20268
- Principles of method if other than guideline:
- Ciba method SOP-24b (laser diffraction, dry measurement). This method is comparable to the draft guidance document EUR 20268 (2002, part 5.2 "Laser scattering/diffraction" for "Particle Size Distribution, Fibre Length and Diameter Distribution", European Commission, Directorate General JRC) (http://ecb.jrc.ec.europa.eu/documents/Testing-Methods/Guidance_Document_on_Granulometry.pdf)
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- Butanamide, 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-, N,N'-bis(phenyl and o-tolyl) derivs.
- EC Number:
- 272-732-0
- EC Name:
- Butanamide, 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-, N,N'-bis(phenyl and o-tolyl) derivs.
- Cas Number:
- 68910-13-4
- Molecular formula:
- C32H26O4N6Cl2 - C34H30O4N6Cl2
- IUPAC Name:
- Reaction mass of 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazendiyl)]bis[3-oxo-N-phenylbutyramide], 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[N-(2-methylphenyl)-3-oxobutyramide] and 2-[2-[3,3'-dichloro-4'-[2-[1-[[(2-methylphenyl)amino]carbonyl]-2-oxopropyl]diazenyl][1,1'-biphenyl]-4-yl]diazenyl]-3-oxo-N-phenylbutyramide
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D50
- Mean:
- 17.78 µm
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- Percentile:
- D50
- Mean:
- 17.78 µm
- St. dev.:
- 0.23
Any other information on results incl. tables
The values represent averages of three different measurements of the same lot. Individual values: 17.52, 17.90 and 17.93 µm, standard deviation calculated from these values: 0.23 µm.
Applicant's summary and conclusion
- Conclusions:
- The mass median diameter is 17.78 µm.
- Executive summary:
- The mass median diameter using Malvern laser diffraction (volumetric distribution) was determined to be 17.78 µm.
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