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Environmental fate & pathways

Biodegradation in soil

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Administrative data

Endpoint:
biodegradation in soil
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Secondary literature.

Data source

Reference
Reference Type:
secondary source
Title:
Chlortoluidine
Author:
BUA
Year:
1990
Bibliographic source:
BUA-Report, VCH Weinheim, 1990

Materials and methods

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

Test material

Constituent 1
Chemical structure
Reference substance name:
3-chloro-p-toluidine
EC Number:
202-446-3
EC Name:
3-chloro-p-toluidine
Cas Number:
95-74-9
Molecular formula:
C7H8ClN
IUPAC Name:
3-chloro-4-methylaniline
Radiolabelling:
not specified

Study design

Oxygen conditions:
not specified
Soil classification:
not specified
Soil properties
Soil no.:
#1
Soil type:
other: no data
% Clay:
20
% Silt:
65
% Sand:
15
% Org. C:
1.5
pH:
7
CEC:
no data
Duration of test (contact time)
Soil No.:
#1
Duration:
72 h
Initial test substance concentration
Soil No.:
#1
Initial conc.:
2.5 - 50 other: mg/kg w.wt.
Based on:
not specified

Results and discussion

Half-life / dissipation time of parent compound
Soil No.:
#1
DT50:
1 - 2 d
Type:
not specified
Transformation products:
yes
Identity of transformation productsopen allclose all
No.:
#1
Reference
Reference substance name:
Unnamed
IUPAC name:
3-(or 5-)chloro-4-methyl-benzo-chinone-2-(3'-chloro-4'-methyl)anilin
Identity:
3-(or 5-)chloro-4-methyl-benzo-chinone-2-(3'-chloro-4'-methyl)anilin
No.:
#1
Reference
Reference substance name:
Unnamed
IUPAC name:
3,3'-Dichlor-4,4'-dimethyl-azobenzol
Identity:
3,3'-Dichlor-4,4'-dimethyl-azobenzol
No.:
#1
Reference
Reference substance name:
Unnamed
IUPAC name:
3-Chlor-p-acet-toluidid
Identity:
3-Chlor-p-acet-toluidid
Details on transformation products:
3,3'-Dichlor-4,4'-dimethyl-azobenzol was determined in approach with test compound concentration of 10 - 50 mg/kg
Evaporation of parent compound:
not specified
Volatile metabolites:
not specified
Residues:
not specified
Details on results:
Under test conditions of 25 °C +/- 1 °C compound was not detectable after 48 h.

Applicant's summary and conclusion

Executive summary:

Halflife of CAS 95 -74 -9 was determined to be t1/2 = 1 - 2 days in a soil consisting of 20 % clay, 65 % silt and 15 % sand, further 1.5 % organic carbon and pH 7.