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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
biodegradation in water: sewage treatment simulation testing
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: dat fro ma publicatiojn

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
No information
Author:
Calamari D et al
Year:
1980
Bibliographic source:
Chromosphere 9: 753-762
Reference Type:
publication
Title:
No information
Author:
Chudoba J et al
Year:
1969
Bibliographic source:
CHEM PRUM 19/ 76-80

Materials and methods

Principles of method if other than guideline:
no data
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Diethylamine
EC Number:
203-716-3
EC Name:
Diethylamine
Cas Number:
109-89-7
Molecular formula:
C4H11N
IUPAC Name:
diethylamine

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge, adapted
Duration of test (contact time):
12 d
Parameter followed for biodegradation estimation:
O2 consumption

Results and discussion

Any other information on results incl. tables

diethylamine at 10 ppm degraded with both an activated sludge and fresh water/sediment inoculum, 59 and 38 % of the theoretical BOD was obtained after 12 days of incubation. Inhibition was noted at moderate concentrations and sizeable reductions in BOD were noted at 50 ppm. Another study concluded that diethylamine was degraded slowly by activated sludge even when acclimatized (53% of theoretical BOD was achieved after 13 days)

Applicant's summary and conclusion