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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Additional information on environmental fate and behaviour

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Administrative data

additional information on environmental fate and behaviour
Type of information:
experimental study
Adequacy of study:
supporting study
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: No OECD guideline followed. Not GLP. Only brief description of test setup and results available.

Data source

Reference Type:
Beständigkeit gegen Auslaugen von p-phenylenediamin-Derivaten.
Spirk, E.; Stefanik, P.; Orlik I.; Collonge, J.
Bibliographic source:
Gummi, Asbest, Kunststoffe 1981, 34 (11), p. 734-735.

Materials and methods

Test guideline
no guideline followed
Principles of method if other than guideline:
T-shaped rubber samples of defined composition are immersed in distilled water of pH 4 for 15 days. Water samples were analyzed for p-phenylenediamine derivatives by UV-spectrophotometric measurements using a calibration curve.
GLP compliance:

Test material

Constituent 1
Chemical structure
Reference substance name:
1,4-Benzenediamine, N,N'-mixed Ph and tolyl derivs.
EC Number:
EC Name:
1,4-Benzenediamine, N,N'-mixed Ph and tolyl derivs.
Cas Number:
Molecular formula:
Reaction mass of N-phenyl,N'-o-tolyl-phenylene diamine, N,N'-diphenyl-p-phenylene diamine and N,N'-di-o-tolyl-phenylene diamine

Results and discussion

Any other information on results incl. tables

After 15 days of contact between the rubber samples and the water, approximately 1,6% of the 1,4-benzenediamine, N,N'-mixed Ph and tolyl derivs. leached from the rubber into the water phase. Two other tested p-phenylenediamines (N-isopropyl-N'-phenyl-p-phenylenediamine and N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine) respectively showed 86.2 and 44.7% of antioxidant leaching from the rubber samples.

Applicant's summary and conclusion