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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: non GLP study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
The pH in dilutions with millipore water was measured after 30 min of stirring. Following dilutions are prepared:
0.11 g m-Toluidine dissolved in 9.90 g water (1:99)
1.00 g solved in 9.00 g water (1:9)
5.00 g solved in 5.00 g water (1:1)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
m-toluidine
EC Number:
203-583-1
EC Name:
m-toluidine
Cas Number:
108-44-1
Molecular formula:
C7H9N
IUPAC Name:
3-methylaniline
Test material form:
other: liquid

Results and discussion

pH valueopen allclose all
pH value:
8.6
Concentration:
11 g/L
pH value:
9.3
Concentration:
100 g/L
pH value:
9.3
Concentration:
500 g/L

Applicant's summary and conclusion

Conclusions:
A pH value of 8.6 was determined at a concentration of 11 g/L in millipore water and 9.3 at 100 g/L and 500 g/L.