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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 234-796-8 | CAS number: 12033-89-5
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The 48 hr EC50 for daphnia magna was found to be >100 mg/L. The NOEC was >=100 mg/L.
Key value for chemical safety assessment
Additional information
An acute toxicity study for Daphnia magna was carried out to EC guideline C.2 and in accordance with GLP (ARC Seibersdorf research GmBH, on behalf of H.C. Starck GmBH, 2005). A 48 hr static limit test was carried out for Daphnia magna. The solubility of Slilicon Nitride in water is very low. Therefore an aqueous extract (loading rate nominal 100 mg/L in water) was prepared to achieve a dissolved test substance concentration as high as possible. After stirring for approximately 24 hours and subsequent filtration the filtrate was used as the test medium. The test animals were neonates of Daphnia magna, not more than 24 hours old.
Results were as follows:
EC50 24 h & 48 h: >100 mg/L
NOEC ≥ 100 mg/L
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.
