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EC number: 406-420-4
CAS number: 69430-40-6
Determination of the calibration factor Fb
is described in the Appendix of the attached study report. Table 2 in
the report shows the individual measurements and the corrected surface
tension of a solution of test substance in double-distilled water at a
The determination of the surface tension of an aqueous solution of DC
5067 was based on EEC-Directive A.5 5urface tensionn (1984), OECD
Guideline no. 115 "Surface tension of aqueous solutions" (1981) and the
proposed updated version of the EEC guideline (November 1989). The
surface tension of a saturated solution of DC 5067 was determined to be
29.0 mN/m. Based on the criteria as mentioned in the proposed updated
version of the EEC guideline, it was concluded that DC 5067 should be
regarded as a surface active material. The temperature of measurement
was 20.0 + 0.5°C.
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