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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

The 48hr-EC 50 values of Phosphoric acid (CAS No. 7664-38-2) to Daphnia magna was determined as > 376 mg/L (read-across). The no-observed effect concentration (NOEC) was estimated to be 81 mg/L (read- across).

The read-across 72hr-EC50 values (95% confidence limits) expressed in terms of the mean measured concentration of phosphoric acid (CAS No. 7664-38-2) to Pseudokirchneriella subcapitata (Strain No . UTEX 1648) were determined as 77.9 mg/L (66.2-92.8 rng/L) for average growth rate, and 32.0 mg/L (21.3-48.6 mg/L) for yield, respectively.

Additional information