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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Dissociation constant

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Administrative data

Endpoint:
dissociation constant
Type of information:
other: not precised
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: 4a abstract only

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1962

Materials and methods

GLP compliance:
not specified

Test material

Constituent 1
Reference substance name:
imidazolidine-2 thione
IUPAC Name:
imidazolidine-2 thione
Constituent 2
Chemical structure
Reference substance name:
Imidazolidine-2-thione
EC Number:
202-506-9
EC Name:
Imidazolidine-2-thione
Cas Number:
96-45-7
Molecular formula:
C3H6N2S
IUPAC Name:
imidazolidine-2-thione

Results and discussion

Dissociation constant
pKa:
-1.9
Temp.:
20 °C

Applicant's summary and conclusion

Conclusions:
According to Janssen (1962) , the dissociation constant of ETU (imidazolidine-2thione) is -1.9 at 20°C.
Executive summary:

According to Janssen (1962) , the dissociation constant of ETU (imidazolidine-2-thione) is -1.9 at 20°C.