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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

IC50 3h > 100 mg/l

Key value for chemical safety assessment

EC50 for microorganisms:
100 mg/L

Additional information

Toxicity on microorganisms for the substance was reported in some summaries as company internal monitoring data, in which no bacteria toxicity was recorded up to 300 mg/l (Hitz H.R. 1978, 1974 and 1973).

Since the reports were lacking of many details to consider them as fully reliable, the results were confirmed by the outcomes on the analogous substance 3a-A(NaK). Justification for Read Across is given in Section 13 of IUCLID.

Three studies are available on the similar substance: the IC50 was not recorded up to the highest dose tested of 100 mg/l in the Reust H. and Inauen J. (1987) study and up to 1000 mg/l in both the further two studies available (Sewell I.G. and Horton M.R., 1993 and Memmert U., 1993).