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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
dissociation constant
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
Unknown
Reliability:
4 (not assignable)

Data source

Reference
Reference Type:
publication
Title:
Unnamed

Materials and methods

GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
O,O-diisopropyl hydrogen dithiophosphate
EC Number:
203-503-5
EC Name:
O,O-diisopropyl hydrogen dithiophosphate
Cas Number:
107-56-2
Molecular formula:
C6H15O2PS2
IUPAC Name:
O,O-bis(propan-2-yl) sulfanylphosphonothioate

Results and discussion

Dissociation constantopen allclose all
No.:
#1
pKa:
ca. 1.82
Temp.:
20 °C
Remarks on result:
other: In a 7% ethanol solution in water. Temperature is unknown, but presumed to be normal room temperature
No.:
#2
pKa:
ca. 2.65
Temp.:
20 °C
Remarks on result:
other: In a 80% ethanol solution in water. Temperature is unknown, but presumed to be normal room temperature

Applicant's summary and conclusion

Conclusions:
Dissociation Constant: pKa 1.82 (7% EtOH aq.); pKa 2.65 (80% EtOH aq.)