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Short-term toxicity to fish

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Description of key information

LC50 96h Danio Rerio > 1000 mg/l loading rate, corresponding to > 83 mg/l measured concentration

LC50 96h Danio Rerio > 100 mg/l has been chosen as representative value since no effect has been observed up to the measured concentration of 83 mg/l.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
100 mg/L

Additional information

The acute lethal toxicity of the multi-constituent substance " Reaction mass of dodecane-1-thiol and tridodecyl trithiophosphite" to the Zebrafish Danio rerio was investigated according to test guideline OECD TG 203, under static exposure conditions over a period of 96 h. The result was LC50 96h Zebrafish Danio rerio > 1000 mg/l loading rate, corresponding to > 83 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. LC50 96h Danio Rerio > 100 mg/l has been chosen as representative value since no effect has been observed up to the measured concentration of 83 mg/l.

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