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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 210-535-3 | CAS number: 617-86-7
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
48 hour EC50: 0.577 mg/l and EC10 0.364 mg/l (geometric mean measured concentrations) for effects of the test substance on mobility of Daphnia magna, carried out in compliance with OECD guideline 202.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 0.577 mg/L
Additional information
A 48 hour EC50 of 0.577 mg/l and an EC10 of 0.364 mg/l, based on geometric mean measured concentrations, have been determined for the effects of the test substance, triethylsilane, on mobility of Daphnia magna, carried out in compliance with OECD guideline 202. The result is considered to be reliable and is selected as key study.
A second invertebrate toxicity test has been carried out with triethylsilane, reporting a 48 hour EC50 value of 52 mg/l based on nominal concentrations. However, this study has been deemed unacceptable due to measured concentrations being generally below the detection limit and not consistent with nominal. Nominal tested concentrations exceeded the predicted solubility and the presence of undissolved test substance or possible hydrolysis products can be assumed.
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.
