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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to aquatic plants other than algae

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Administrative data

Link to relevant study record(s)

Description of key information

ErC50 > 100 mg/l based on nominal concentration (corresponding to 0.016 mg/l measured)

Key value for chemical safety assessment

Additional information

The substance was tested on Lemna Gibba according to the OECD guideline 221. A limit test was conducted at a single concentration at saturation (corresponding to 100 mg/L nominal concentration) using concurrent control ran. The exposure concentration of the saturated test solution was analytically determined to be 0.016 mg/L (calculated as the geometric mean of start and end concentrations measured at each renewal period).

The plants were exposed to the test substance for 7 days in a semi-static system (24-h water renewal periods).

In this 168-hour semi-static growth inhibition test on Lemna gibba the test item Fluorescent Brightener 313 had no toxic effect at aquatic saturation (measured value: 0.016 mg/L; equivalent to 100 mg/L nominal concentration).

Accordingly, the 168-h EC10, EC20, EC50 and the LOEC values based on growth rate and yield were determined to be > 0.016 mg/L (equivalent to 100 mg/L nominal concentration). The 168-h NOEC values were determined to be 0.016 mg/L (equivalent to 100 mg/L nominal concentration).

All validity criteria were met.