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EC number: 616-105-5 | CAS number: 74504-65-7
Surface tension
Administrative data
Link to relevant study record(s)
- 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
- Guideline:
- EU Method A.5 (Surface Tension)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN 14370 Bestimmung der Oberflächenspannung; November 2004
- GLP compliance:
- yes (incl. QA statement)
- 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
- 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).
Reference
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.
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
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