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Physical & Chemical properties

Surface tension

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Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
April 27, 2009 - May 27, 2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Qualifier:
according to
Guideline:
other: DIN EN 14370 Bestimmung der Oberflächenspannung; November 2004
GLP compliance:
yes (incl. certificate)
Type of method:
ring method
Specific details on test material used for the study:
Batch No. 710291
CoA: Dr. Straetmans Chemische Produkte GmbH, April 15, 2009
Viscous liquid/colourless
Expiry date: October 2010
Key result
Surface tension:
ca. 28.6 mN/m
Temp.:
20 °C
Conc.:
96 mg/L
Remarks on result:
other:
Remarks:
Mean value of constant measurements

The surface tension of the aqueous solution of the test item (appoximately 90% of the water solubility) decreased during the measuring time of 105 min. The mean value of all measured surface tension was calculated to be 33.2 mN/m and the mean value of the last constant measurements was calculated to be 28.6 mN/m at 20 °C± 0.3 °C.

Conclusions:
The surface tension of the aqueous solution (approximately 90% of the water solubility) of Dermosoft DGMC, reaction mass of 3-(2,3-dihydroxypropoxy)-2-hydroxypropyl decanoate and 1-(2,3-dihydroxypropoxy)-3-hydroxypropan-2-yl decanoate was determined to be 28.6 mN/m 20 °C± 0.3 °C. (mean value of constant measurements).
Executive summary:

The surface tension of the test item was determined in a guideline study (OECD 115, EU method A.5 and DIN EN 14370) by means of a ring tensiometer. The study was done according to GLP.

The surface tension of the aqueous solution (approximately 90% of the water solubility) of Dermosoft DGMC, reaction mass of 3-(2,3-dihydroxypropoxy)-2-hydroxypropyl decanoate and 1-(2,3-dihydroxypropoxy)-3-hydroxypropan-2-yl decanoate was determined to be 28.6 mN/m 20 °C± 0.3 °C (mean value of constant measurements).

Description of key information

The surface tension of the aqueous solution (approximately 90% of the water solubility) of Dermosoft DGMC, reaction mass of 3-(2,3-dihydroxypropoxy)-2-hydroxypropyl decanoate and 1-(2,3-dihydroxypropoxy)-3-hydroxypropan-2-yl decanoate was determined to be 28.6 mN/m (mean value of constant measurements).

Key value for chemical safety assessment

Surface tension:
28.6
in mN/m at 20°C and concentration in mg/L:
96

Additional information