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EC number: 281-897-8
CAS number: 84057-80-7
Determination of the density
density of the1 g/L aqueoussolution
double-distilled water was determined in a preliminary measurement to be
1.008 g/cm³ (20.2 °C).
The temperature range of the test
solution during the whole measurements was 19.9 - 20.2 °C
room temperature during these measurements was 19.8 - 20.1 °C
line of the study
transfer of the test solution into the test vessel 54.0 minutes were
needed to reach equilibrium at which 10 successive measurements with a
standard deviation of 0.04 mN/m were possible.
Surface tension of
a of a 1 g/L aqueous solution of calcium bis(2-ethylhexanoate)
The determination was carried out in
ten successive measurements with a standard deviation ≤ 0.05 mN/m.
MV = mean value
SD = standard deviation
*) of the last 10 measurements
**) Time from transfer of the test
solution into the test vessel until end of each measurement
***) Values already corrected acc. to Harkins
The surface tension of the reference
item hexane was determined on 2012-07-16 as 18.33 ± 0.02
mN/m (20 °C) for the Ring Nr. 1, RI 21. This value is in the range of
tolerance of ± 1 mN/m acc. to the literature value of
18.42 mN/m at 20 °C.
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