Registration Dossier
Registration Dossier
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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.
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EC number: 223-888-3 | CAS number: 4109-96-0
Long-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
Testing for long-term toxicity to fish is not considered necessary because:
· The substance reacts violently with water therefore ecotoxicity testing would be too hazardous.
Short-term toxicity of the degradation products to fish is low based on reliable read across.
· The substance hydrolyses rapidly to hydrogen chloride and monosilicic acid, Si(OH)4, and amorphous polysilicic acid. The effects of hydrogen chloride are limited to pH effects and not relevant in correctly buffered media. Monosilicic acid is a naturally-occurring substance which is not harmful to aquatic organisms at relevant concentrations. Monosilicic acid is the major bioavailable form of silica for aquatic organisms and plays an important role in the biogeochemical cycle of silicon (Si).
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.
