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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 231-633-2 | CAS number: 7664-38-2
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Short-term toxicity to aquatic invertebrates: EC50 (48h) >100 mg/L for Daphnia magna (OECD TG 202, static, Klimisch reliability 1)
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 100 mg/L
Additional information
One reliable study (Priestly, 2010 from Harlan Laboratories) was available which was given a Klimisch 1 score. The study was performed according to OECD TG 202 and EC Method C.2, and according to GLP principles. In the study, Daphnia magna were exposed to aqueous solutions of phosphoric acid under static test conditions. The pH was adjusted to 7 (pH from 7 to 7.8).
The concentrations that were tested were 10, 18, 32, 56 and 100 mg/L. The 48h-EC50 was >100 mg/L and the NOEC = 56 mg/L, based on nominal concentrations. Measured test concentrations ranged from 82% to 94% of nominal at the start of the test, and from 80 % to 92% after 48h.
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.
