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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

No effects up to a loading rate of 100 mg/L (OECD 202, Acartia tonsa)

Key value for chemical safety assessment

Additional information

One saltwater study is available on the short-term toxicity of Sorbitan, (Z)-9-octadecenoate (2:3) (CAS No. 8007-43-0) to aquatic invertebrates.

The key study conducted with Sorbitan, (Z)-9-octadecenoate (2:3) (CAS No. 8007-43-0) was performed according to the OECD Guideline 202 and GLP (Hudson, 2003). The test organism Acartia tonsa was exposed to the test substance in a static system for 48 hours, at nominal test concentrations of 1000, 1800, 3200, 5600 and 10000 mg/L. Immobilisation was observed at the highest test concentration, and an EC50 of 7756 mg/L was derived. Although the test solutions were prepared as water accommodated fractions (WAF), physical effects caused by undissolved test material cannot be excluded. The sudden increase in mortality from 0% at concentrations up to 1000 - 5600 mg/L to 100% at 10,000 mg/L, is more likely to be caused by the amount of undissolved test material in the test solution, leading to immobilisation of the daphnia, rather than a systemic toxic effect.