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Physical & Chemical properties

Surface tension

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Description of key information

Surface tension of N-Butylpyrrolidone (1 g/L) revealed a value of 67.31 mN/m at 20 °C.

Key value for chemical safety assessment

Surface tension:
67.31
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information

The surface tension of an aqueous solution of the test compound was determined according to European Commission Council Regulation (EC) No 440/2008, Method A.5 (Surface tension, plate method) and OECD Guideline 115. Therefore a solution of the test item in water with a concentration of 1 g/L was prepared. Surface tension of N-Butylpyrrolidone (1 g/L) revealed a value of 67.31 mN/m at 20 °C.