Registration Dossier

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
14-04-2017 – 14-04-2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report Date:
2017

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)
Principles of method if other than guideline:
The mean pH of an aqueous solution or dispersion in water was determined with a pH measurement interface equipped with an appropriate electrode
system.
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): 4-(Phenylazo)benzene-1,3-diamine
- Molecular formula (if other than submission substance): C12-H12-N4
- Molecular weight (if other than submission substance): 212.255 g/mol
- Substance type: Organic
- Physical state: Solid

Results and discussion

pH value
Key result
pH value:
6.19
Temp.:
25 °C
Concentration:
1 vol%

Applicant's summary and conclusion

Conclusions:
The pH determination of test item 4-(phenylazo)benzene-1,3-diamine (CAS No 495-54-5) was done following OECD guideline 122. pH of 1% w/v solution was measured with the help of pH meter and it was observed to be 6.19 at 30 °C.
Executive summary:

The pH determination of test item 4-(phenylazo)benzene-1,3-diamine (CAS No. 495-54-5 ) was done as per the test guideline OECD 122. The mean pH of the test solution was determined with the help of digital pH meter. The mean pH was found to be 6.19 at 30 °C.