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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

LC50 96h Danio Rerio > 100 mg/l

EC50 48h Daphnia Magna > 100 mg/l

ErC50 72h Desmodesmus subspicatus  > 100 mg/l

EC50 3h activated sludge > 1000 mg/l (loading rate) and NOEC = 1000 mg/l (loading rate)

Additional information

The multi-constituent substance "Reaction mass of dodecane-1-thiol and tridodecyl trithiophosphite" is non-toxic to aquatic species at three trophic levels: fish, aquatic invertebrates and algae, as demonstrated by the results below.

 - LC50 96h Danio Rerio > 1000 mg/l loading rate, corresponding to > 83 mg/l measured concentration: experimental data obtained testing the substance according to OECD TG 203.

 - EC50 48h Daphnia Magna > 1000 mg/l loading rate, corresponding to > 92 mg/l measured concentration: experimental data obtained testing the substance according to OECD TG 202.

 - ErC50 72h Desmodesmus subspicatus  > 1000 mg/l (loading rate), corresponding to > 92 mg/l measured concentration: experimental data obtained testing the substance according to OECD TG 201.

Note: According to ECHA guidance R7b for slightly soluble substance for which no effect at concentration below 100 mg/l was observed, the PNEC should be calculated on limit value of solubility in the medium. For this substance the limit of solubility in the medium is expected to be similar to the solubility of the substance in water (i.e. 96.3 mg/l) approximated to 100 mg/l. LC50 /EC 50>100 mg/l has been chosen as representative value for the PNEC calculation since no effect has been observed up to the measured concentration of 83 - 92 mg/l.

Moreover, the substance was tested for activated sludge respiration inhibition according to OECD TG 209 and EC50 3h activated sludge > 1000 mg/l (loading rate) and NOEC= 1000 mg/l (loading rate) were the results of this test.