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Physical & Chemical properties

Surface tension

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Description of key information

Surface tension data are available for streams within this Category. The surface tension range for this Category was 70.2 - 72 mN/m in 90% saturation concentration.

Key value for chemical safety assessment

Surface tension:
71.13
in mN/m at 20°C and concentration in mg/L:
243

Additional information

64742-83-2: 71 mN/m at 20°C (90% saturation concentration) (K) (GKA Competence Center BASF 2008). 64742-83-2: 72 mN/m at 20°C (90% saturation concentration) (S) (GKA Competence Center BASF 2008). 68475-70-7: 71mN/m (GKA Competence Center BASF 2008). 68477-39-4: 71.6 mN/m at 20°C (90% saturation concentration) (GKA Competence Center BASF 2008). 68527-23-1: 71 mN/m at 20°C (90% saturation concentration) (GKA Competence Center BASF 2008). 90989-43-8: 70.2 mN/m at 20 °C (GKA Competence Center BASF 2008).

The mean of the surface tension values for the category is 71.13 mN/m and this has been used to complete the 'key value for chemical safety assessment'. These values were given for a concentration of 90% saturation concentration and the 90% value has been applied to the mean water solubility in order to provide a concentration in mg/L.