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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: peer reviewed data base

Data source

Reference
Reference Type:
review article or handbook
Title:
The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals
Author:
O'Neil, M.J. (ed.).
Year:
2006
Bibliographic source:
Whitehouse Station, NJ: Merck and Co., Inc., 2006.., p. 573. cited in HSDB 18 Dec 2009

Materials and methods

Principles of method if other than guideline:
other: measured
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Dimethyl methylphosphonate
EC Number:
212-052-3
EC Name:
Dimethyl methylphosphonate
Cas Number:
756-79-6
Molecular formula:
C3H9O3P
IUPAC Name:
dimethyl methylphosphonate

Results and discussion

Dissociating properties:
yes
Dissociation constant
No.:
#1
pKa:
2.37
Temp.:
20 °C
Remarks on result:
other: in water

Applicant's summary and conclusion