Registration Dossier

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
25/09/2014 - 25/09/2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Data is from experimental study report

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2014
Report Date:
2014

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid
Details on test material:
- Name of test material (as cited in study report): 4,4'-methylenedi-2,6-xylenol
- Smiles: Oc1c(cc(Cc2cc(c(O)c(c2)C)C)cc1C)C
- Molecular formula: C17H20O2
- Molecular weight: 256.3446
- Substance type: Organic
- Physical state: Solid

Results and discussion

pH value
Key result
pH value:
6.13
Temp.:
30 °C
Concentration:
1 vol%
Remarks on result:
other: ACIDIC IN NATURE

Any other information on results incl. tables

Method Details

Observations

Guideline

OECD 122

 

Method

 

pH Meter

 

Principle of method

 

 

 

 

 

 

 

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.

 

Temperature of 1% w/v test solution

-

300C

pH (RESULT)

 

-

6.13

Inference

1.   Acidic

2.   Basic

3.   Neutral

 

Acidic

Applicant's summary and conclusion

Conclusions:
pH of 1% w/v aqueous solution of the test substancewas determined to be 6.13 at 30°C.
Executive summary:

The pH determination of test substance 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 6.13 at 30 °C.