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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

14 d and 96 h LC50 250 mg active acid/l, O. mykiss, reliability 1 (ABC 1979, read-across from EDTMP acid)
14 d and 96 h NOEC 114 mg active acid/l, O. mykiss, reliability 1 (ABC 1979, read-across from EDTMP acid)
96 h LC50 1600 mg active acid/L, C. variegatus, reliability 2 (EG&G 1976, read-across from EDTMP acid)

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
250 mg/L

Marine water fish

Marine water fish
Effect concentration:
1 600 mg/L

Additional information

No data are available with the registered substance, however reliable data are available with the parent substance EDTMP acid (CAS 1429-50-1). A 14 d and 96 h LC50 value of 250 mg active acid/l and a NOEC value of 114 mg/l have been determined for the effects of EDTMP acid on the mortality of the freshwater fish O. mykiss based on mean measured concentrations.

A 96 h LC50 value of 8000 µl/l (ppm), equivalent to 1600 mg active acid/L has been reported for the effects of EDTMP acid on the mortality of the marine fish C. variegatus.