Registration Dossier
Registration Dossier
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EC number: 204-697-4 | CAS number: 124-40-3
Dissociation constant
Administrative data
Link to relevant study record(s)
- Endpoint:
- dissociation constant
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Peer-reviewed database
- Principles of method if other than guideline:
- Experimental determination
- GLP compliance:
- not specified
- Dissociating properties:
- yes
- No.:
- #1
- pKa:
- 10.732
- Temp.:
- 25 °C
- Remarks on result:
- other: Temperature value is an estimate as actual temperature value was not specified
- Conclusions:
- A pKa value of 10.73 is reported. A pKa of 10.73 indicates dimethylamine will exist almost entirely in the cation form at pH values of 5 to 9 and therefore volatilization from water surfaces and moist soil surfaces is not expected to be an important fate process
- Executive summary:
A pKa value of 10.732 is reported. A pKa of 10.73 indicates dimethylamine will exist almost entirely in the cation form at pH values of 5 to 9 and therefore volatilization from water surfaces and moist soil surfaces is not expected to be an important fate process.
Reference
Description of key information
A pKa value of 10.73 is reported (HSDB, 2010).
Key value for chemical safety assessment
- pKa at 20°C:
- 10.73
Additional information
A pKa value of 10.73 is reported. This indicates dimethylamine will exist almost entirely in the cation form at pH values of 5 to 9 and therefore volatilization from water surfaces and moist soil surfaces is not expected to be an important fate process.
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