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Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental dates: 20 September 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
The study was conducted according to an internationally recognised method with no deviation, and under GLP. The substance is considered to be adequately characterised, with isomers composition. Therefore full validation applies.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)
Version / remarks:
26 July 2013
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
issued on 28 Nov. 2017

Test material

Constituent 1
Chemical structure
Reference substance name:
(±)-1-[(1RS,2SR,4SR)-BICYCLO[2.2.1]HEPT-2-YL]-5-HEXEN-2-ONE
Cas Number:
1352216-65-9
Molecular formula:
C13H20O1
IUPAC Name:
(±)-1-[(1RS,2SR,4SR)-BICYCLO[2.2.1]HEPT-2-YL]-5-HEXEN-2-ONE
Constituent 2
Chemical structure
Reference substance name:
(±)-1-[(1RS,2RS,4SR)-BICYCLO[2.2.1]HEPT-2-YL]-5-HEXEN-2-ONE
Cas Number:
1352216-63-7
Molecular formula:
C13H20O1
IUPAC Name:
(±)-1-[(1RS,2RS,4SR)-BICYCLO[2.2.1]HEPT-2-YL]-5-HEXEN-2-ONE
Test material form:
liquid
Details on test material:
Appearance: Colourless liquid
Specific details on test material used for the study:
Storage conditions: approximately 4 °C, in the dark, in amber glass flask. Stored under Nitrogen in a closed container after first opened.

Reagents

Reagent:
water

Results and discussion

pH value
pH value:
6.8
Temp.:
21.8 °C
Concentration:
1 other: %m/v

Any other information on results incl. tables

The pH values measured are shown in the following table:

Determination pH Value at 25 °C Mean pH
After 1 Minute After 2 Minutes After 10 Minutes
A 6,25 6,53 6,79 6,78
B 6,22 6,42 6,79

pH of the high purity water: 5.87

Ambient laboratory temperature: 21.8 °C

Since the result fell within the range 4 to 10, the determination of acidity or alkalinity by titration was not required.

Applicant's summary and conclusion

Conclusions:
Determination of acidity or alkalinity by titration is not required.
Executive summary:

The pH of the test substance was determined under GLP according to OECD 122 guideline, using a calibrated pH-meter.

Two solutions were prepared at 1%m/v in high purity water, and measurements were recorded after 10 minutes equilibration.

The pH of a 1%m/v aqueous solution temperature of test substance has been determined to be 6.8 (at a temperature of 21.8°C).