Registration Dossier
Registration Dossier
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EC number: 205-741-5 | CAS number: 149-45-1
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 7 Feb 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:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
- Deviations:
- not specified
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Hess. Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Mainzer Straße 80 D65189 Wiesbaden, Germany
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- Disodium 4,5-dihydroxybenzene-1,3-disulphonate
- EC Number:
- 205-741-5
- EC Name:
- Disodium 4,5-dihydroxybenzene-1,3-disulphonate
- Cas Number:
- 149-45-1
- Molecular formula:
- C6H6O8S2.2Na
- IUPAC Name:
- disodium 4,5-dihydroxybenzene-1,3-disulphonate
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Key result
- Percentile:
- D10
- Mean:
- 14.2 µm
- Remarks on result:
- other: std. dev. not available
- Key result
- Percentile:
- D50
- Mean:
- 37.7 µm
- Remarks on result:
- other: std. dev. not available
- Key result
- Percentile:
- D90
- Mean:
- 80.8 µm
- Remarks on result:
- other: std. dev. not available
Any other information on results incl. tables
Individual Results
Two test series of 3 measurements each were performed with the test item.
Test series 1 :
D10: 14.1 µm
D50: 37.8 µm (Median diameter)
D90: 81.4 µm
Test series 2 :
D10: 14.2 µm
D50: 37.6 µm (Median diameter)
D90: 80.1 µm
Average:
D10: 14.2 µm
D50: 37.7 µm (Median diameter)
D90: 80.8 µm
Final Results
The test item AF-378 has a median particle size of D50 = 37.7 µm, which was determined by laser diffraction measurement according to OECD Test Guideline 110 (1981), ISO 13320 (2009) and EPA OCSPP Guideline 830.7520 (1996).
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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