Benzenediamine, ar-methyl-, polymer with 2-methyloxirane and oxirane

Surface tension

Description of key information

42.74 mN/m at 20 °C and 1 g/l

Key value for chemical safety assessment

Surface tension:

42.74

in mN/m at 20°C and concentration in mg/L:

1 000

Additional information

There are at least three studies that could be used to give the surface tension of Benzenediamine, ar-methyl-, polymer with 2-methyloxirane and oxirane (Currenta 2009, Laus 2009, Bayer 1996). All studies indicate that the substance is surface active. While Currenta (2009) gives the surface tension to be 53.7 mN/m, Laus (2009) give a range: >= 42.74 mN/m <= 43.28 mN/m. Thus, Laus (2009) was taken forward to describe the key parameter "surface tension" of Benzenediamine, ar-methyl-, polymer with 2-methyloxirane and oxirane since this study gives the lowest value: 42.74 mN/m.