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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Biodegradation in water: screening tests

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Administrative data

Link to relevant study record(s)

Description of key information

DNNSA is a structural analogue of Lithium ( di C8-C10, branched, C9 rich, alkylnaphthalene sulphonate).  Under the conditions of the OECD 301B test, di C8-C10, branched, C9 rich, alkylnaphthalene sulphonic acid (DNNSA) was not readily biodegradable. Degradation of DNNSA was 14-17% after 28 days. These results provide acceptable evidence that Lithium ( di C8-C10, branched, C9 rich, alkylnaphthalene sulphonate) is also not readily biodegradable

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

DNNSA (di C8-C10, branched, C9 rich, alkylnaphthalene sulphonic acid) is a structural analogue of Lithium (di C8-C10,

branched, C9 rich, alkylnaphthalene sulphonate). Under the conditions of the OECD 301B test, DNNSA was not readily biodegradable. Degradation of DNNSA was 14-17% after 28 days. These results indicate that the lithium salt of DNNSA also biodegrades slowly.