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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

One experimental study was conducted on the Surface Tension of a 90% saturated aqueous solution of Neoproxen. It has been determined to be 59.56 mN/m at 22 °C under OECD Guideline 115 (Surface Tension of Aqueous Solutions) in compliance with GLP. This chemical would be considered a surface active substance under EU Directive 648/2004 (< 60mN/m is surface active).

Key value for chemical safety assessment

Surface tension:
59.56
in mN/m at 20°C and concentration in mg/L:
253.31

Additional information