Registration Dossier

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: Study according to international accepted guidelines, but not GLP compliant.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report Date:
2015

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: OECD 122: Determination of pH, Acidity and Alkalinity
Deviations:
no
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
Test item: 4-nitrophenyl-acetic acid
CAS number: 104-03-0
Physical state: Solid, crystalline powder
Colour: Yellowish
Storage: cool, dry place, protected from light

Results and discussion

pH value
pH value:
2.98
Temp.:
22.8 °C
Concentration:
10 g/L
Remarks on result:
other: suspension

Any other information on results incl. tables

As the water solubility of test item is less than 1 w/v % (10 g/L) so a suspension was resulted.

After stirring the solid particles were allowed to settle for 5 minutes. The pH was measured from the supernatant of the suspension.

Applicant's summary and conclusion

Conclusions:
The measured pH of 1 w/v % (10 g/L) 4-nitrophenylacetic-acid (CAS No. 104-03-0) suspension was 2.98 at 22.8 °C.