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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 215-609-9 | CAS number: 1333-86-4
Additional physico-chemical information
Administrative data
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- secondary literature
Data source
Reference
- Reference Type:
- secondary source
- Title:
- An apparatus and methodology for predicting the dustiness of materials.
- Author:
- Cowherd C Jr et al.
- Year:
- 1 989
- Bibliographic source:
- American Industrial Hygiene Association Journal, 50, 123-130. In: Occupational and Environmental Health Effects of Carbon Black. Abstracts of the Literature 1906-1991.
Materials and methods
- Principles of method if other than guideline:
- A bench-scale, impact-type chamber was developed to measure the "dustiness" of a variety of finely divided solid materials. The design of the chamber incorporates a 0.27-L container with a rotation rate of 0.8 rpm from which solids are poured onto a solid surface 25 cm below. Suspended particulate matter is collected on a 47-mm glass fiber filter sampler in the chamber lid which draws air through side vents at an 8.3-L/min sampling rate. The measure of dustiness is the mass of suspended particulate material collected during a 10 minute period beginning just before the pouring, divided by the total mass dropped in the chamber. A total of 36 tests of 14 solids were performed in the dustiness chamber. These test materials consisted of inorganics, carbonaceous substances, and dyes. All of the test materials were characterized for the physical properties which might affect dustiness potential. These included bulk density, particle-size distribution, moisture content, and angle of repose. Both dried and humidified solids were tested.
Test material
- Reference substance name:
- Carbon black
- EC Number:
- 215-609-9
- EC Name:
- Carbon black
- Cas Number:
- 1333-86-4
- Molecular formula:
- C
- IUPAC Name:
- carbon
- Test material form:
- solid: nanoform
Constituent 1
Results and discussion
- Results:
- The dustiest materials tested (>100 mg/kg) were humidified powdered sodium chloride, humidified talc, carbon black, calcium hydroxide, and hydrated lime. The least dusty materials (<30 mg/kg) were dried powdered sodium chloride, clay, sodium tripolyphosphate, and the dyes, except for direct yellow 6G.
Applicant's summary and conclusion
- Conclusions:
- Carbon black was among the dustiest materials tested (>100 mg/kg).
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.
