1-phenyl-3-pyrazolidone

pH

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

Test material information

Constituent 1

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.