4-methyl-1-phenyl-3-pyrazolidone

pH

Administrative data

Endpoint:

pH

Type of information:

experimental study

Adequacy of study:

key study

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:

4-methyl-1-phenyl-3-pyrazolidone

EC Number:

220-180-6

EC Name:

4-methyl-1-phenyl-3-pyrazolidone

Cas Number:

2654-57-1

Molecular formula:

C10H12N2O

IUPAC Name:

4-Methyl-1-phenylpyrazolidin-3-one

Test material form:

solid

Details on test material:

- Name of test material: 3-Pyrazolidinone, 4-methyl-1-phenyl-
- Molecular formula: C10H12N2O
- Molecular weight: 176.219 g/mole
- Smiles: O=C1NN(c2ccccc2)CC1C
- Inchl: InChI=1/C10H12N2O/c1-8-7-12(11-10(8)13)9-5-3-2-4-6-9/h2- 6,8H,7H2,1H3,(H,11,13)/f/h11H
- Substance type: Organic
- Physical state: solid

Results and discussion

pH value

Key result

pH value:

5.22

Temp.:

29 °C

Concentration:

1 vol%

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	-	29°C
mean pH (RESULT)	-	5.22
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 5.22 at 29°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 5.22 at 29°C.