Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 403-700-8 | CAS number: 2687-94-7 NOP; SURFADONE LP-100 SURFACTANT
Surface tension
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:
- 30.8
- 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.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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