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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

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Description of key information

Toxicity to microorganisms:
NOEC = 100 mg/L (OECD 301F)
Fatty acids, C14-18 and C16-18-unsatd., maleated: EC50 > 1000 mg/L (OECD 209)

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
100 mg/L

Additional information

High oleic sunflower oil, maleated had no inhibitory effect on activated sludge microorganisms at the tested concentration of 100 mg/L when tested in a Manometric Respirometry Test for biodegradability according to OECD Guideline 301 F.

In addition, the degradation product Fatty acids, C14-18 and C16-18-unsatd., maleated had no effect  on activated sludge of a predominantly domestic sewage in study performed according to OECD 209 and GLP. The EC50 was found to be >1000 mg/L.