Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 940-742-0 | CAS number: -
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- May 2014
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 014
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Particle size was measured with a Bluewave particle size analyzer from Microtrac (laser diffraction method). Sample was injected into the analyzer with a Turbotrac dry powder dispersion device.
- GLP compliance:
- no
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- Humic acids and fulvic acids extracted from leonardite, reaction product with formaldehyde, potassium hydrogen sulfite, sodium hydrogen sulfite and potassium hydroxide
- Molecular formula:
- NA, macromolecular compound
- IUPAC Name:
- Humic acids and fulvic acids extracted from leonardite, reaction product with formaldehyde, potassium hydrogen sulfite, sodium hydrogen sulfite and potassium hydroxide
Constituent 1
Results and discussion
Particle size
- Percentile:
- D50
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Particle size distribution at different passagesopen allclose all
- No.:
- #1
- Size:
- > 1 408 µm
- Distribution:
- 5.1 %
- No.:
- #2
- Size:
- > 704 - < 1 408 µm
- Distribution:
- 7.4 %
- No.:
- #3
- Size:
- > 352 - < 704 µm
- Distribution:
- 1.9 %
- No.:
- #4
- Size:
- > 176 - < 352 µm
- Distribution:
- 5.3 %
- No.:
- #5
- Size:
- > 88 - < 176 µm
- Distribution:
- 29.2 %
- No.:
- #6
- Size:
- > 44 - < 88 µm
- Distribution:
- 35.2 %
- No.:
- #7
- Size:
- > 22 - < 44 µm
- Distribution:
- 11.9 %
- No.:
- #8
- Size:
- > 13 - < 22 µm
- Distribution:
- 3.1 %
- No.:
- #9
- Size:
- > 11 - < 13 µm
- Distribution:
- 0.9 %
- No.:
- #10
- Size:
- < 9.25 µm
- Distribution:
- 0 %
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
