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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Surface tension

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Administrative data

Link to relevant study record(s)

Description of key information

The surface tension of N-(n-octyl)-2-pyrrolidinone is 30.8 mN/m

Key value for chemical safety assessment

Surface tension:
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information

Two studies are available from the migrated NONS file provided by ECHA. One states a surface tension of

31.2 mN/m at a concentration of 1230 mg/L and the other states a surface tension of 30.8 mN/m at a concentration of 1000 mg/L.

The figure at a concentration of 1000 mg/L has been undertaken according to OECD guideline 115 and therefore it can be concluded that the surface tension of N-(n-octyl)-2 -pyrrolidinone is 30.8 mN/m.