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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 273-761-1 | CAS number: 69012-64-2 Amorphous silicon dioxide particles from the volatilization and vaporization of furnace feed materials in the manufacture of ferrosilicon and silicon.
Endpoint summary
Administrative data
Description of key information
Additional information
The terrestrial toxicity of pure silica fume is expected to be low, since soil-living species are well adapted to the presence of silica in the soil and soil pore water. Silica is also essential for some soil-living species. No studies or information has been located showing the toxicity of silica to soil-living species. Based on already existing exposure and effects information, it is currently not seen as necessary to have any targeted ecotoxicological testing of silica fume (high grade) in the soil. This conclusion applies to high-grade purity silica fume (as presented in section 1.2: Composition of the substance). The heavy metal and organic impurities present in lower grades of silica fume may have remarkable effects relevant for the soil compartment. These contaminants must be dealt with separately by producers and importers and evaluated on a case-by-case basis according to presented information regarding specific products/batches and uses. Companies should have regular control over the levels of hazardous impurities and update the RMM and CSA accordingly.
For silica fume, the impurities present in the substances rather than the Si need consideration if exposure to soil takes place. The amount and quality of impurities vary between raw materials, processes and factories. In estimating the hazard and risks involved in these metals or other impurities, the read-across method may be utilized on a case-by-case by applying the already existing hazard data and PNEC soil values applicable to these metals and other elements.
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.
