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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

pH

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Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-03-07 – 2017-03-07
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to 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:
other: OECD 122
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:
Octan-2-one
EC Number:
203-837-1
EC Name:
Octan-2-one
Cas Number:
111-13-7
Molecular formula:
C8H16O
IUPAC Name:
octan-2-one
Test material form:
other: Liquid
Details on test material:
- Name of test material: Octanone-2
- Molecular formula: Not applicable
- Molecular weight: Not applicable
- Substance type:Organic
- Physical state:Liquid

Results and discussion

pH value
Key result
pH value:
4.62
Temp.:
27 °C
Concentration:
1 other: %w/v

Any other information on results incl. tables

Temperature of 1% w/v test solution

-

27°C

pH (RESULT)

 

-

4.62

Inference

1.   Acidic

2.   Basic

3.   Neutral

 

Acidic 

Applicant's summary and conclusion

Conclusions:
The pH determination of test item, 98% was done following OECD guideline 122. pH of 1% w/v solution was measured with the help of pH meter and it was observed to be 4.62 at 27 °C.
Executive summary:

The pH determination of test item, 98% was done following OECD guideline 122. pH of 1% w/v solution was measured with the help of pH meter and it was observed to be 4.62 at 27 °C.