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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Additional information

Hydrogenated rosin alcohols exhibits a very low water solubility (<1.0 mg/L) and is therefore a difficult substance to test for aquatic toxicity. For the acute studies conducted with the substance (fish, Daphnia, and algae), water accommodated fraction (WAF) techniques were used. In the tests conducted on each of these species, no adverse effects were noted at the maximum loading rates of 100 mg/L. In addition, an activated sludge respiration inhibition study showed no effects at the maximum concentration of 1000 mg/L indicating a lack of toxicity to microorganisms.

For the chronic studies (Daphnia reproduction and fish early life stage), a series of dosing trials were conducted in order to identify the most appropriate approach for preparing solutions of the test item, and using saturator columns was found to be the most suitable approach for this difficult to test substance. A limit test was carried out for the fish early life stage study and a NOEC value could not be determined from this study. A NOEC of 0.16 mg hydrogenated rosin alcohols/L was determined from the Daphnia study, and this value is used for classification and PNEC derivation.