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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
dissociation constant
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18-12-2012 to 3-01-2013
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2013

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other:
Principles of method if other than guideline:
Measurement of capacity of a compound to dissociate into respective ions.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Ethyl 4,4,4-trifluoroacetoacetate
EC Number:
206-750-7
EC Name:
Ethyl 4,4,4-trifluoroacetoacetate
Cas Number:
372-31-6
Molecular formula:
C6H7F3O3
IUPAC Name:
ethyl 4,4,4-trifluoro-3-oxobutanoate
Test material form:
other: liquid
Details on test material:
-Substance Name: ethyl 4,4,4-trifluoroacetoacetate
-Molecular formula : C6H7F3O3
-Substance type: Organic
-physical state-liquid

Results and discussion

Dissociating properties:
yes
Dissociation constantopen allclose all
No.:
#1
pKa:
0
Temp.:
21 °C
Remarks on result:
other: 0.000000045 (0.450 x 10-7)
No.:
#2
pKa:
0
Temp.:
21 °C
Remarks on result:
other: 0.0000000451(0.451x 10-7)
No.:
#3
pKa:
0
Temp.:
21 °C
Remarks on result:
other: 0.0000000451 (0.451x 10-7)

Applicant's summary and conclusion

Conclusions:
The average pKa value for ethyl 4,4,4-trifluoroacetoacetate was found to be 0.0000000450666667 at 21 degC indicating that it has dissociation properties.
Executive summary:

The average pKa value for ethyl 4,4,4-trifluoroacetoacetate was found to be 0.0000000450666667 at 21 degC indicating that it has dissociation properties.