Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2009-09-21
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The pendant drop method has been compared to the ring method OECD 115 and gave good correlation. See report no W09-2478. Pendant drop is an accepted, well-documented technique which meets scientific principles

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009

Materials and methods

Test guideline
Qualifier:
equivalent or similar to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Principles of method if other than guideline:
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. Because the surface tension was above 60 mN/m, only one measurement was performed.
Because the solubility of the substance is greater than 1 g/l, a solution of 1g/l was used to determine the surface tension.
GLP compliance:
no
Type of method:
other: Pendant dro+

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): Capa® Monomer
- Substance type: organic
- Physical state: liquid
- Analytical purity: GC area% 99.8
- Lot/batch No.: WNI 5862 26/5/09
- Stability under test conditions: stable
- Storage condition of test material: room temperature

Results and discussion

Surface tension
Surface tension:
69 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Applicant's summary and conclusion

Conclusions:
Surface tension: 69 mN/m at 20 ºC
Executive summary:

Surface tension: 69 nM/m at 20 °C