Registration Dossier

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Experimental result using standard methods of analysis

Data source

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

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: OECD 122
Principles of method if other than guideline:
A pH meter is essentially a voltmeter with high input impedance which measures the voltage of an electrode sensitive to the hydrogen ion concentration, relative to another electrode which exhibits a constant voltage
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
4-chlororesorcinol
EC Number:
202-462-0
EC Name:
4-chlororesorcinol
Cas Number:
95-88-5
Molecular formula:
C6H5ClO2
IUPAC Name:
4-chlorobenzene-1,3-diol
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
- Name of test material (as cited in study report): 4-chlororesorcinol
- Molecular formula (if other than submission substance): C6H5ClO2
- Molecular weight (if other than submission substance): 144.56
- Substance type: Organic
- Physical state: Solid
- Analytical purity: 98.40 %

Results and discussion

pH value
pH value:
3.8
Temp.:
30 °C
Concentration:
1 vol%

Applicant's summary and conclusion

Conclusions:
pH of 1% w/v aqueous solution of the test substance 4-chlororesorcinol (CAS No. 95-88-5) is 3.8 at 30.0°C.
Executive summary:

The pH determination of test substance 4-chlororesorcinol (CAS No.95-88-5) was done as per the test guideline OECD 122. The pH of the test solution was determined with the help ofpH meter. The pH was found to be 3.8 at 30.0 °C. Thus, 1% solution can be considered to be acidic in pH.