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EC number: 287-335-8
CAS number: 85480-55-3
Table 2: Full test results (study 85858)
Test Temp (°C)
Solution Age (mins)
Surface Tension Reading (mN/m)
Corrected Value using calibration factor (mN/m)
Corrected Value for water calibration (mN/m)
surface tension of MEA-LAS was determined following the EU Method A.5
measurements was made using a commercially available tensiometer. The
measurement ring was made of a platinum-iridium wire of about 0.3 mm
thickness and a mean circumference of approximately 40 mm.The
solution (1 g/L) to be measured was transferred to the measurement
vessel, taking care to avoid foaming. The measurement vessel was placed
on the table of the test apparatus. The measurement vessel was raised
until the ring was immersed below the surface of the solution.
Subsequently, the tabletop was lowered gradually and evenly at a rate of
approximately 0.5 cm min-1to detach the ring from the surface
until the maximum force was reached. The force was read on the
tensiometer. After completing the first measurement, a second test run
was performed to confirm the first measurement.
mean surface tension of MEA-LAS as a 1 g/L solution was 34.1 mN/m at20°C.
surface tension test is classified as acceptable, and satisfies the
guideline requirements of the EU Method A.5 (Surface Tension).
surface tension of MEA-LAS was determined following EU Method A.5
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