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Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
04/05/2017 - 04/05/2017
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
Guideline:
OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)
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:
1-phenyl-3-pyrazolidone
EC Number:
202-155-1
EC Name:
1-phenyl-3-pyrazolidone
Cas Number:
92-43-3
Molecular formula:
C9H10N2O
IUPAC Name:
1-phenylpyrazolidin-3-one
Test material form:
solid
Details on test material:
Name of test material (as cited in study report): 1-Phenyl-3-pyrazolidone
Molecular formula: C9H10NO
Molecular weight :162.191 g/mol
Smiles notation : c1ccc(cc1)N2CCC(=O)N2
InChl : 1S/C9H10N2O/c12-9-6-7-11(10-9)8-4-2-1-3-5-8/h1-5H,6-7H2,(H,10,12)
Substance Type: Organic
Physical State: Solid

Results and discussion

pH value
Key result
pH value:
4.02
Temp.:
30 °C
Concentration:
1 vol%
Remarks on result:
other: No other detail available

Any other information on results incl. tables

Method Details

Observations

Remarks if,

any

Guideline

OECD 122

-

-

Method

Digital pH meter

-

Principle of method

 

The mean pH of an aqueous solution or dispersion in water is

determined with a pH

measurement interface equipped with an appropriate electrode

system.

-

Temperature of 1% w/v

test dispersion

-

30°C

mean pH (RESULT)

-

4.02

Inference

1. Acidic

2. Basic

3. Neutral

Acidic

Applicant's summary and conclusion

Conclusions:
The pH of 1% w/v dispersion of the test chemical was determined to be 4.02 at 30 °C.
Executive summary:

The pH determination of test chemical was done following OECD guideline 122. pH of 1% w/v dispersion was measured with the help of pH meter and it was observed to be 4.02 at 30 °C.

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