Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Endpoint:
dissociation constant
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1964

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
The study was carried out before guidelines were available.
GLP compliance:
no

Test material

Constituent 1
Reference substance name:
Automatically generated during migration to IUCLID 6, no data available
IUPAC Name:
Automatically generated during migration to IUCLID 6, no data available
Details on test material:
2-mercaptopyridine-1-oxide (pyrithione) was synthesized and purified (recrystallisation). The purity was checked by melting point and potentiometric determination of its neutralisation equivalent.

Results and discussion

Any other information on results incl. tables

log Kt = 5.3 (formation constant)

Applicant's summary and conclusion

Conclusions:
log Kt = 5.3 (formation constant). The information contained within this robust summary document comes from studies which are in the ownership of Arch Chemicals Inc. and which are protected in several regions globally. This information may not be used for any purpose other than in support of the Chemical safety Report submitted by Arch Chemicals Inc. under Regulation EC 1907/2006.