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EC number: 608-670-1 | CAS number: 31831-53-5
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2009-10-23
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Accepted well-documented technique which meets scientific principles The pendant drop method has been compared to the ring method OECD 115 and gave good correlation. See company report no W09-2478.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Principles of method if other than guideline:
- Method: Pendant drop, Perstorp A1577 (correlates well to OECD 115), se company report no W09-2478.
A syringe was filled with approximately 10 ml of the solution and was attached to the instrument. The solution was mechanically expelled from the syringe so that it formed a drop on the tip of the needle. This drop was examined optically by the software and 20 images were collected at a rate of 1 image every 3 seconds. The surface tension was calculated by the shape of the drop and the result is expressed as a mean value of the 20 images. - GLP compliance:
- no
- Type of method:
- other: pendant drop
Test material
- Reference substance name:
- 2-Oxepanone, polymer with 1,4-butanediol
- EC Number:
- 608-670-1
- Cas Number:
- 31831-53-5
- Molecular formula:
- l(HO(CH2)5CO)-O(CH2)4O-(CO(CH2)5OH)m
- IUPAC Name:
- 2-Oxepanone, polymer with 1,4-butanediol
- Details on test material:
- Name of test material (as cited in study report): Capa™ 2043
- Substance type: organic
- Physical state: Liquid
- Analytical purity: Mixture(GC purity) 1,4-butandiol 1.7 % , 1,4-butandiol -1ECL 11.1 %, 1,4-butandiol -2ECL 21.6 %, 1,4-butandiol -3ECL 24.8 %, 1,4-butandiol -4ECL 20.6 %, 1,4-butandiol -5ECL 12.9 %, 1,4-butandiol -6ECL 5.9 %, 1,4-butandiol -7ECL 1.6 %
- Lot/batch No: WNI 342 27/1/09 WAC000378
- Stability under test conditions: good
- Storage condition of test material: room temperature
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- 53 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
Applicant's summary and conclusion
- Conclusions:
- Surface Tension: 53 mN/m at 20 ºC
- Executive summary:
Surface Tension: 53 mN/m at 20 ºC
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