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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Oxidising properties

Currently viewing:

Administrative data

Endpoint:
oxidising properties
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Peer-reviewed database
Cross-referenceopen allclose all
Reason / purpose for cross-reference:
reference to same study
Reference
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
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Principles of method if other than guideline:
Experimental determination
GLP compliance:
not specified
Dissociating properties:
yes
No.:
#1
pKa:
14.7
Temp.:
20 °C
Conclusions:
For the test substance a pKa value of 14.7 is reported.
Executive summary:

For the test substance 2 -pyrrolidone a pKa value of 14.7 is reported.

Reason / purpose for cross-reference:
reference to same study
Reference
Endpoint:
phototransformation in water
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Peer-reviewed database
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Study type:
other: indirect and direct photodegradation
Principles of method if other than guideline:
Calculations based on measured data
GLP compliance:
not specified
Radiolabelling:
no
Analytical method:
not specified
Light source:
sunlight
Type of sensitiser:
OH radical
Details on sensitiser:
hydroxyl radical in aqueous solution
Rate constant (for indirect photolysis):
2 200 000 000 other: l/mol sec
DT50:
ca. 1 yr
Test condition:
indirect photodegradation
Test condition:
direct photodegradation is not expected
Transformation products:
not measured
Details on results:
The rate constant for the reaction of 2-pyrrolidone with the hydroxyl radical in aqueous solution is 2.2X10+9 l/mol sec(2) with a half life of 1 year(SRC) assuming a hydroxyl radical concentration of 1X10-17 mol/l(3). 2-Pyrrolidone is not expected to directly photolyze due to the lack of absorption in the environmental UV spectrum.
Validity criteria fulfilled:
not specified
Executive summary:

The rate constant for the reaction of 2 -pyrrolidone with the hydroxyl radical in aqueous solution is 2.2X10+9 l/mol sec with a half life of 1 year (SRC) assuming a hydroxyl radical concentration of 1X10-17 mol/l. 2 -pyrrolidone is not expected to directly photolyze due to the lack of absorption in the environmental UV spectrum.


Data source

Reference
Reference Type:
review article or handbook
Title:
2-Pyrrolidone
Author:
HSDB (Hazardous Substances Database)
Year:
2010
Bibliographic source:
U.S. National Library of Medicine

Materials and methods

Principles of method if other than guideline:
Experimentally determined
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
2-pyrrolidone
EC Number:
210-483-1
EC Name:
2-pyrrolidone
Cas Number:
616-45-5
Molecular formula:
C4H7NO
IUPAC Name:
pyrrolidin-2-one

Results and discussion

Any other information on results incl. tables

Fire Potential:

SLIGHT, WHEN EXPOSED TO HEAT OR FLAME. ...CAN REACT WITH OXIDIZING MATERIALS

Applicant's summary and conclusion

Interpretation of results:
other: slight fire potential
Conclusions:
Slight fire potential
Executive summary:

Fire Potential: Slight, when exposed to heat or flame. Can react with oxidising materials.