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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

Hydrolysis product pivalic acid: not readily biodegradable (according to OECD criteria).

Key value for chemical safety assessment

Biodegradation in water:
inherently biodegradable
Type of water:

Additional information

The parent compound pivaloyl chloride (CAS 3282-30-2) rapidly hydrolyses in contact with water and forms pivalic acid (CAS 75-98-9). Therefore, the biodegradation potential will be assessed based on information available for the hydrolysis product pivalic acid.

The hydrolysis product pivalic acid was determined to be not readily biodegradable (according to OECD criteria; Exxon, 1996):


Test method





OECD 301F (Manometric Respirometry Test)

activated sludge, domestic (adaptation not specified)

Not readily biodegradable (acc. to OECD criteria)

Hydrolysis product pivalic acid; reliability: 2; key study

Exxon, 1996

OECD 302B (Zahn-Wellens-Test)

activated sludge, industrial, non-adapted

Inherently biodegradable

Hydrolysis product pivalic acid; reliability: 2; supporting study

BASF, 1983