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EC number: 700-729-0
CAS number: 1369500-14-0
The calibration factor Φbwas determined to be
1.0214 for double distilled water.
Determination of Surface Tension for the Test Item
Time expired [hours:min]
the bold values
(σ1 = σ* · Φb)
σ1 corrected for
(σ = σ1 · Fc)
Mean value from both samples:
Fc: factor for correction acc. to Harkins-Jordan. Fc=0.994 for
67.07 mN/m and Fc=0.992 for 66.22 mN/m
The determination of the surface tension of an aqueous solution of the
test item was based on the OECD Guideline No. 115: “Surface Tension of
Aqueous Solutions” (1995).
The surface tension of test item in water (90% of saturation
concentration) was determined according to the ring method to be 66.2
mN/m at 19.7 °C ± 0.1 °C. The study is considered to be adequate and
reliable. As the reported surface tension of the test substance is
>60mN/m then the test substance should not be considered to be surface
active (according to EU method 5).
66.2 mN/m at 19.7 °C ± 0.1 °C, OECD 115, OECD harmonised ring method, Kühne 2011
a single study conducted according to guidelines is available for this
endpoint. The study is considered to be relevant, reliable (Klimisch 1)
and adequate for the purposes of risk assessment, classification and
labelling. As the recorded value is >60mN/m then the test substance is
not considered to be surface active.
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