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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
pH
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
2008
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report date:
2008

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: CLARIANT SOP
Deviations:
not applicable
Principles of method if other than guideline:
Three flasks containing approx. 10 g/l test substance in water were stirred for 5 h at 30 °C. Subsequently the flasks were stirred at 20 °C for 1 day, 2 days and 3 days respectively. After each day the content of one flask was centrifuged for 15 min at 6000 rpm and 20 min at 14500 rpm. The content of the test subtance in the aqueous phases was determined by UV/VIS spectroscopy.
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Dimethyl 2-aminoterephthalate
EC Number:
226-364-2
EC Name:
Dimethyl 2-aminoterephthalate
Cas Number:
5372-81-6
Molecular formula:
C10H11NO4
IUPAC Name:
1,4-dimethyl 2-aminobenzene-1,4-dicarboxylate
Constituent 2
Reference substance name:
dimethyl-2-aminoterephthalate
IUPAC Name:
dimethyl-2-aminoterephthalate

Results and discussion

pH valueopen allclose all
pH value:
6.9
Temp.:
20 °C
Concentration:
ca. 10 g/L
pH value:
6.7
Temp.:
20 °C
Concentration:
ca. 10 g/L

Any other information on results incl. tables

The pH was measured at diffent eqilibration time of 24, 48 and 72 h

Applicant's summary and conclusion

Conclusions:
The pH of approx 10 g/L test substance in water stirred for 5 h at 30 °C was 6.9 at 24 h , 6.7 at 48 h and 6.9 at 72 h equlibration time (20 °C).
Executive summary:

The pH of approx 10 g/L test substance in water stirred for 5 h at 30 °C was 6.9 at 24 h , 6.7 at 48 h and 6.9 at 72 h equlibration time (20 °C).