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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 936-414-1 | CAS number: -
Nanomaterial crystallite and grain size
Administrative data
- Endpoint:
- nanomaterial crystallite and grain size
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2014. June 11, 2014 August 19, 2014 Dec 9, 2016. Dec 19, 2018. Oct 04
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
Data source
Materials and methods
- GLP compliance:
- no
- Details on methods and data evaluation:
- The dry type of disperser was used to disperse the test material. The particle was dispersed and then detected by the light scattering.
Test material
- Reference substance name:
- carbon
- EC Number:
- 936-414-1
- Molecular formula:
- C
- IUPAC Name:
- carbon
- Test material form:
- solid: nanoform
- Details on test material:
- - Shape of particles: Tangled Muliwalled Carbon nano tubes
- Diameter of the individual fiber: 7-35 nm, length (bundle) 15.97- 147.36 µm
- Analytical purity: >= 95% based on themogravimetric analysis
- Surface area of particles: 198.31-273.16 m2 / g
- Crystal structure: Raman coefficient avg. = Ig/Id = 0.90-1.25
Constituent 1
Results and discussion
Crystallite and grain size
- Key result
- Mean:
- >= 30 - <= 105 μm
Any other information on results incl. tables
See study report for details
Applicant's summary and conclusion
- Conclusions:
- Particle size analysis was performed using dispersed dry particles/CNTs and detected by laser scattering. X50/D50 was determined to 30-105 µm.
- Executive summary:
The MWCNT K-Nanos was characterised by particle size analysis which was performed using dispersed dry particles/CNTs and detected by laser scattering. X50/D50 was determined to 30 -105 µm.
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.
