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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
biodegradation in water: ready biodegradability
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
review article or handbook
Title:
biodegradation and fish toxicity of nonionic surfactants
Author:
Yoshimura K et al
Year:
1986
Bibliographic source:
J Amer Oil Chem Soc 63

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
the guideline is unknown
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Nonylphenol, ethoxylated
EC Number:
500-024-6
EC Name:
Nonylphenol, ethoxylated
Cas Number:
9016-45-9
Molecular formula:
C17H28O2
IUPAC Name:
Nonylphenol, ethoxylated

Results and discussion

% Degradationopen allclose all
Parameter:
other: mixture of polyethylene glycol linear nonylphenyl ethers utilizing sediment inocula
Value:
97
Sampling time:
30 d
Remarks on result:
other: standing sample
Parameter:
other: on a mixture of polyethylene glycol linear nonylphenyl ethers utilizing sediment inocula
Value:
98
Sampling time:
30 d
Remarks on result:
other: stirred sample
Parameter:
other: die-away test conducted on a mixture of polyethylene glycol linear nonylphenyl ethers with an inoculum obtained from the Arakawa River, Horikiri, Japan
Value:
98
Sampling time:
30 d
Remarks on result:
other: standing samples
Parameter:
other: die-away test conducted on a mixture of polyethylene glycol linear nonylphenyl ethers with an inoculum obtained from the Arakawa River, Horikiri, Japan
Value:
99
Sampling time:
30 d
Remarks on result:
other: stirred samples

Applicant's summary and conclusion

Interpretation of results:
readily biodegradable