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EC number: 606-548-2 | CAS number: 204254-84-2
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2006-05-17 to 2006-05-18
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted in compliance with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results. The study report was conclusive and done to a valid guideline.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 006
- Report date:
- 2006
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
Test material
- Reference substance name:
- Ethyl (3aR,7R,7aR)-2,2-dimethyl-7-[(methylsulfonyl)oxy]-3a,6,7,7a-tetrahydro-1,3-benzodioxole-5-carboxylate
- EC Number:
- 606-548-2
- Cas Number:
- 204254-84-2
- Molecular formula:
- C13 H20 O7 S
- IUPAC Name:
- Ethyl (3aR,7R,7aR)-2,2-dimethyl-7-[(methylsulfonyl)oxy]-3a,6,7,7a-tetrahydro-1,3-benzodioxole-5-carboxylate
- Test material form:
- other: solid
- Details on test material:
- White to beige solid
Purity: 99.2%
Expiry date: 21 December 2006
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- 61.2 mN/m
- Temp.:
- 21.2 °C
- Remarks on result:
- other: 90% of saturated concentration
Applicant's summary and conclusion
- Conclusions:
- The surface tension of the test item in water (90 % of saturation concentration) was determined to be 61.2mN/m at 21.2 °C and thus is not considered to be a surface active material.
- Executive summary:
The surface tension of an aqueous solution of the test item (90% of saturation concentration) was determined using a tensiometer Model K8. The measuring body was a platinum-iridium ring with a wire radius of 0.185 mm and a ring radius of 9.545 mm. The sample measurements were performed at 21.2°C and the calibration measurement was made at 20.6°C. The apparatus was calibrated using double distilled water from RCC supply and the calibration factor determined to be 1.0169.
The surface tension of the test item in water (90 % of saturation concentration) was determined to be 61.2mN/m at 21.2 °C and thus is not considered to be a surface active material.
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