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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report date:
2019

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)
Version / remarks:
2013
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
1-(3,5-dichloro-4-fluorophenyl)-2,2,2-trifluoroethan-1-one
EC Number:
829-719-5
Cas Number:
1190865-44-1
Molecular formula:
C8H2Cl2F4O
IUPAC Name:
1-(3,5-dichloro-4-fluorophenyl)-2,2,2-trifluoroethan-1-one
Test material form:
liquid

Reagents

Reagent:
water

Results and discussion

pH value
Key result
pH value:
6.13
Temp.:
20 °C
Concentration:
1 other: % w/v

Any other information on results incl. tables

Table 1: pH value determinations

Determination

pH value

Overall mean pH

Reading after 1 minute

Reading after 2 minutes

Reading after 10 minutes

1

6.91

6.62

6.24

6.13

2

6.95

6.63

6.02

Applicant's summary and conclusion

Conclusions:
The pH value of a 1% w/v aqueous dispersion of the test substance was determined to be 6.13 at 20 °C.
Executive summary:

The pH value of the test substance was determined under GLP in accordance with OECD TG 122. A pH meter was confirmed to be accurately calibrated by using certified reference buffer solutions that were pre-equilibrated at 20 °C. Appropriate aliquots of test substance were diluted in high purity water to achieve a 1% w/v aqueous dispersion. The water was pre-equilibrated to 20 °C before use. The pH value was recorded after a period of one minute and a second reading was done after after two minutes. As the difference between the two readings was >0.1 pH units, a final reading was done after 10 minutes. The pH value determined in two independent tests was 6.24 and 6.02, respectively. The average pH value was 6.13 at 20 °C.