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Diss Factsheets

Physical & Chemical properties

Surface tension

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surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
August - October 2013
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: A modern study conducted in compliance with GLP standards and followed OECD Guidelines
according to guideline
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
GLP compliance:
Type of method:
ring method
Specific details on test material used for the study:
Identifier: EXP1200078
Appearance: Very dark brown (almost black) viscous liquid
Batch: E00275-350
Sample Expiration Date: end-2013
Key result
Surface tension:
ca. 67.3 other: dynes/cm
20 °C
2.2 mg/L
Remarks on result:
other: Concentration based on Total Organic Carbon
The mean surface tension for the test substance at 20.0 ± 0.5ºC was 67.3 ± 0.5 dynes/cm (N = 3, RSD
= 0.77%).

Tyndall effect was observed in the test substance aliquot used in the testing. The test
substance, classified by the Sponsor as a surfactant, may have produced micelles in the aqueous
Executive summary:

The mean surface tension for EXP1200078 at 20.0 ± 0.5ºC was 67.3 ± 0.5 dynes/cm.

Description of key information

A key GLP study conducted in accordance with OECD Guideline, the mean surface tension for EXP1200078 at 20.0 ± 0.5ºC was 67.3 ± 0.5 dynes/cm.

Key value for chemical safety assessment

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

Additional information

Material is UVCB for which concentration could be determined as Total Organic Carbon (TOC) with a solubility of 2.2 mg/L on the basis of TOC.