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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Sediment toxicity

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Description of key information

According to REACH Annex X, column 2, testing of long-term toxicity to sediment organisms is not required as the chemical safety assessment does not indicate the need for further investigation the effect of the substance on sediment organisms. As no data on sediment organisms are available, the PNEC for sediment organisms was estimated using the equilibrium partitioning method (ECHA TGD IR & CSA, 2010, R10, p.40). Risk assessment using this approach did not indicate any risk to sediment organisms. All measured log Kow values for reaction mass of DIPE and 2-methylpent-2-ene are < 5. Furthermore, all measured log Koc values are < 3. Therefore, a screening assessment of sediment toxicity is sufficient and no further experimental data are required.

Key value for chemical safety assessment

Additional information

According to REACH Annex X, column 2, testing of long-term toxicity to sediment organisms is not required as the chemical safety assessment does not indicate the need for further investigation the effect of the substance on sediment organisms. As no data on sediment organisms are available, the PNEC for sediment organisms was estimated using the equilibrium partitioning method (ECHA TGD IR & CSA, 2010, R10, p.40).

Risk assessment using this approach did not indicate any risk to sediment organisms (see CSR chapter 10). All measured log Kow values for reaction mass of DIPE and 2-methylpent-2-ene < 5.. Furthermore, all measured log Koc values are < 3. Therefore, a screening assessment of sediment toxicity is sufficient and no further experimental data are required.