Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Appearance / physical state / colour

Currently viewing:

Administrative data

Link to relevant study record(s)

Referenceopen allclose all

Endpoint:
appearance / physical state / colour
Type of information:
other: Visual and sensual observation according to REACH requirements
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Peer-reviewed handbook
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
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:
Visual and sensual observation according to REACH requirements
GLP compliance:
not specified
Physical state at 20°C and 1013 hPa:
liquid
Form:
other: can also be solid in purified form
Colour:
colourless to yellowish
Odour:
other: weak self-smell
Substance type:
organic
Conclusions:
Test substance is described a a colourless to yellowish liquid with a weak self-smell.
Executive summary:

Test substance is described a a colourless to yellowish liquid with a weak self-smell.

Endpoint:
appearance / physical state / colour
Type of information:
other: Visual and sensual observation according to REACH requirements
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Peer-reviewed handbook
Principles of method if other than guideline:
Visual and sensual observation according to REACH requirements
GLP compliance:
no
Remarks:
not applicable
Physical state at 20°C and 1013 hPa:
liquid
Form:
not specified
Colour:
light yellow
Odour:
other: no information given
Substance type:
organic
Conclusions:
Test substance is described as a light yellow liquid.
Executive summary:

Test substance is described as a light yellow liquid.

Description of key information

Test substance is described as a colourless to yellowish liquid with a weak self-smell. Furthermore, it is stated, that it can also be solid in purified form. This is related to the low melting point of 2 -pyrrolidone of 25 °C. (please refer to Section 4.2). Therefore, it is sometimes also referred to as "a low-melting solid".

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
liquid
Form:
liquid
Colour:
colourless
yellow

Additional information

The description of the substance is given in the peer-reviewed database GESTIS (2010) as well as by Lewis R.J.(1993).