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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 801-282-5 | CAS number: 1034343-98-0
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
- Study period:
- 31 May 2016
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: test procedure in accordance with international standard method, but without detailed documentation
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Deviations:
- not specified
- Principles of method if other than guideline:
- The particle size distribution was analyzed using the Laser Particle Sizer 'ANALYSETTE 22 MicroTec plus', which uses the technique of laser diffraction to measure the size of particles. It measures the intensity of light scattered as a laser beam passes through a dispersed particulate sample. This data is then analyzed to calculate the size of the particles that created the scattering pattern.
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Key result
- Percentile:
- other: Dv10
- Mean:
- 2.955 µm
- St. dev.:
- 0.02
- Key result
- Percentile:
- other: Dv50
- Mean:
- 7.504 µm
- St. dev.:
- 0.05
- Key result
- Percentile:
- other: Dv90
- Mean:
- 13.65 µm
- St. dev.:
- 0.08
- No.:
- #1
- Size:
- < 1 µm
- Distribution:
- 0.194 %
- No.:
- #2
- Size:
- < 5 µm
- Distribution:
- 21.191 %
- No.:
- #3
- Size:
- < 10 µm
- Distribution:
- 15.546 %
- No.:
- #4
- Size:
- < 50 µm
- Distribution:
- 99.982 %
- Conclusions:
- The volume median diameter was determined to be 7.504 µm
- Executive summary:
Using the laser diffraction (ISO 13320) method to study the particle size of Graphene, the volume median diameter (Dv50) was determined to be 7.504 µm. The particle size distribution was found to range from approximately 0.556 µm to 78.995 µm.
100 % of the particles in the sample have a particle size < 100 µm; the following distribution was determined:
- 21.191 % of test material having a diameter < 5 µm
- 49.73 % of the test material having a diameter of 5 - 10 µm
- 29.079 % of the test material having a diameter of 10 - 100 µm.
Reference
- Volume mean diameter D [4,3]: 8.108 µm
- Mode: 168.37 µm
- Dv10: 2.955 µm
- Dv50: 7.504 µm
- Dv90: 13.650 µm
Description of key information
Using the laser diffraction (ISO 13320) method to study the particle size of Graphene, the volume median diameter (Dv50) was determined to be 7.504 µm. The particle size distribution was found to range from approximately 0.556 µm to 78.995 µm.
100 % of the particles in the sample have a particle size < 100 µm; the following distribution was determined:
- 21.191 % of test material having a diameter < 5 µm
- 49.73 % of the test material having a diameter of 5 - 10 µm
- 29.079 % of the test material having a diameter of 10 - 100 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.
