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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Reaction product of naphthalene, propan-2-ol, sulfonated and neutralized by caustic soda attained 0% degradation after 28 days and therefore cannot be considered to be readily biodegradable under the strict terms and conditions of OECD Guideline No 301B.
Reaction product of naphthalene, propan-2-ol, sulfonated and neutralized by caustic soda attained 27% degradation after 28 days and therefore can be considered to be inherently biodegradable under the strict terms and conditions of OECD Guideline No 302B.

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

The biodegradation of Reaction product of naphthalene, butanol, sulfonated and neutralized by caustic soda is determined by a read-across approach based on analogue substance Reaction product of naphthalene, propan-2-ol, sulfonated and neutralized by caustic soda.

A GLP-compliant study, scored as Klimisch 2 and flagged as a key study, is available on the Reaction product of naphthalene, propan-2-ol, sulfonated and neutralized by caustic soda, giving 0% degradation after 28 days (OECD Guideline No 301B) and revealing that the Reaction product of naphthalene, propan-2-ol, sulfonated and neutralized by caustic soda cannot be considered to be readily biodegradable(R. Graham, 2012).

A GLP-compliant study, scored as Klimisch 2 and flagged as a key study, is available on the Reaction product of naphthalene, propan-2-ol, sulfonated and neutralized by caustic soda, giving 27% degradation after 28 days (OECD Guideline No 302B) and revealing that the Reaction product of naphthalene, propan-2-ol, sulfonated and neutralized by caustic soda can be considered to be inherently biodegradable (R. Graham, 2013).