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EC number: 224-292-6
CAS number: 4292-10-8
Analytical Measurement Parameters:
-KRÜSS K 100 MK2 (SN 20009303)
-Width / Thickness/ Height 19.90/0.20/10.00 mm
Sample concentration1 g/l in bidestilled water
Age of the solution30 min
-Detection speed 6 mm/min
-Detection Sensitivity 0.01 g
-Immersion Depth 2 mm
-Data Acquisition Mode linear
-Max Meas. Time 3000000 ms
-Values for mean 5
-Std. Deviation 0.2 mN/m
The surface tension of C12 AAPB was investigated in a study conducted
according to DIN EN 14370 and using the Wilhelmy plate method.
Bidistilled water and 1 -octanol have been measured as calibration and
control sample. The surface tension of C12 AAPB as 1 g/L solution was
determined to 32.0 +/- 0.2 mN/m at 20°C (average of 5 measurements).
surface tension of C8 -18 AAPB: 30.9 +/- 0.2 mN/m at 20°C surface tension of C12 AAPB: 32.0 +/- 0.2 mN/m at 20°C
In studies conducted according to DIN EN 14370 (Wilhelmy plate method),
the surface tensions of C8 -18 AAPB and C12 AAPB were determined to be
30.9 +/- 0.2 mN/m and 32.0 +/- 0.2 mN/m at 20°C, respectively. All
AAPBs are similar in structure, contain all the same zwitterionic
structure. They differ, however, by their carbon chain length
distribution and the degree of unsaturation (<=20%) in the fatty acid
moiety. The content of minor constituents in all products are comparable
and differ to an irrelevant amount. Based on the available data, it can
be assumed that chain length distribution and degree of unsaturation of
the fatty acid chain have a minor impact on this endpoint.
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