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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

EC50 48h Daphnia Magna > 1000 mg/l loading rate, corresponding to > 92 mg/l measured concentration.

EC50 48h Daphnia Magna > 100 mg/l has been chosen as representative value since no effect has been observed up to the measured concentration of 92 mg/l.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
100 mg/L

Additional information

The multi-constituent substance " Reaction mass of dodecane-1-thiol and tridodecyl trithiophosphite" was tested in acute immobilisation test on Daphnia magna. The test was performed according to method OECD TG 202 and the result was EC50 48h Daphnia Magna > 1000 mg/l loading rate, corresponding to > 92 mg/l measured concentration. 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.EC50 48h Daphnia Magna > 100 mg/l has been chosen as representative value since no effect has been observed up to the measured concentration of 92 mg/l.

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