4-methylcyclohexanone

pH

Administrative data

Endpoint:

pH

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2015-10-14

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2016

Report date:

2016

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other: OECD TG 122: “Determination of pH, Acidity and Alkalinity” adopted 26 July 2013.

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

4-methylcyclohexanone

EC Number:

209-665-3

EC Name:

4-methylcyclohexanone

Cas Number:

589-92-4

Molecular formula:

C7H12O

IUPAC Name:

4-methylcyclohexan-1-one

Test material form:

liquid

Remarks:

colourless

Details on test material:

storage at room temperature in the dark

Results and discussion

pH value

Key result

pH value:

4.78

Temp.:

20 °C

Concentration:

1 other: % w/v

Any other information on results incl. tables

Table 1 pH value determination

Determination	pH Value			Overall Mean pH
	After 1 Minute	After 2 Minutes	After 10 Minutes
1	4.76	4.72	not applicable	4.78
2	4.85	4.83	not applicable

pH of the high purity water used in the sample preparation: 5.70

Applicant's summary and conclusion

Conclusions:

In a valid, reliable and conclusive study according to OECD TG 122 (2013) the pH value of the test item was determined to be 4.78 at 20 °C.

Executive summary:

The study was performed to determine the pH value of the test item. The pH value of the test item, as a 1 % w/v aqueous dispersion, has been determined to be 4.78 at 20 ºC. Mean pH of the high purity water used in the sample preparation was 5.70.