Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
dissociation constant
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP-study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010

Materials and methods

Test guideline
Guideline:
other: no data
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
Formaldehyde, oligomeric reaction products with aniline
EC Number:
500-036-1
EC Name:
Formaldehyde, oligomeric reaction products with aniline
Cas Number:
25214-70-4
Molecular formula:
(C6 H7 N)2 (C H2)m+1(C6H6N)m or C7m+13H6m+13Nm+2
IUPAC Name:
Poly[(aminophenyl)methyl]aniline
Details on test material:
Name of test material (as cited in study report): Formaldehyde, oligomeric reaction products with aniline (oligomeric MDA (4,4' + 2,4' MDA)
Analytical purity: 2-ring MDA: 57.95 g/100g, 3-ring oligomers: 22.66 g/100g, 4-ring oligomers: 9.54 g/100g, 5-ring oligomers: 3.30 g/100g (GC
analysis from April 15, 2010, BASF Antwerpen)

Results and discussion

Any other information on results incl. tables

The test item consists of substances with a number of different amine groups. For each of these groups a discrete dissociation constant can be defined, but not determined by titration. The determination of the dissociation constant of an aqueous preparation of the test item is not possible.

Applicant's summary and conclusion