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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 257-467-0 | CAS number: 51839-25-9
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
- 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:
- comparable to guideline study
- Justification for type of information:
- Physicochemical characteristics of the substance were checked according to standard protocols and state-of-the-art scientific principles, and extensively reported with the objective to answer the information requirements for the REACH legislation
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM E323-09 standard specification for perforated plate sieves for testing purposes
- Version / remarks:
- ASTM E323-09 standard specification for perforated plate sieves for testing purposes
- GLP compliance:
- not specified
- Type of method:
- sieving
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Remarks on result:
- not measured/tested
- Key result
- Percentile:
- D50
- Mean:
- 24 µm
- St. dev.:
- 0.5
- Percentile:
- other: D80
- Mean:
- 39 µm
- St. dev.:
- 0.5
- No.:
- #1
- Size:
- > 0.105 mm
- Distribution:
- 0.39 %
- Remarks on result:
- other: % retained
- No.:
- #2
- Size:
- > 0.075 - <= 0.105 mm
- Distribution:
- 1.52 %
- Remarks on result:
- other: % retained
- No.:
- #3
- Size:
- > 0.045 - <= 0.075 mm
- Distribution:
- 6.28 %
- Remarks on result:
- other: % retained
- No.:
- #4
- Size:
- > 0.02 - <= 0.045 mm
- Distribution:
- 50 %
- Remarks on result:
- other: % retained
- No.:
- #5
- Size:
- < 0.02 mm
- Distribution:
- 41.81 %
- Remarks on result:
- other: % retained
- Conclusions:
- test done according to standard protocol, useful to assess the characteristics of the substance
- Executive summary:
The particle size of the substance was determined by sieving.
The D50 of the substance is 24 µm, the D80 is 39 µm..
Reference
Description of key information
The D50 of the substance is 24 µm, the D80 is 39 µm.
Additional information
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.
