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Diss Factsheets

Physical & Chemical properties

Surface tension

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Link to relevant study record(s)

Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experiment start and end date - 23 April 2003; Study completion date - 03 June 2003
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
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
Specific details on test material used for the study:
Identity: FAT 40810/A
Batch: WP 6/02
Purity: approx. 75 %
Appearance: Solid, dark brownish powder
Expiration date: 12 December 2010
Storage: At room temperature at about 20 °C
Surface tension:
71.4 mN/m
Temp.:
20.2 °C
Conc.:
1 000 mg/L
Conclusions:
In conclusion, the surface tension of FAT 40810/A in water (at a concentration of about 0.1 %) was determined to be 71.4 mN/m at 20.2 °C ± 0.2 °C. Based on the criteria as outlined in the EEC Guideline, FAT 40'810/A is not a surface active substance.
Executive summary:

The determination of the surface tension of an aqueous solution of FAT 40812/A was based on the OECD Guideline No. 115: "Surface Tension of Aqueous Solutions" (1995) and on the EEC Directive 92/69, Part A, Methods for the determination of physico-chemical properties, A.5 "Surface tension", EEC Publication No. L383, December 1992. The calibration factor was determined to be 1.016 for double distilled water. In conclusion, the surface tension of FAT 40810/A in water (at a concentration of about 0.1 %) was determined to be 71.4 mN/m at 20.2 °C ± 0.2 °C. Based on the criteria as outlined in the EEC Guideline, FAT 40810/A is not a surface active substance.

Description of key information

The determination of the surface tension of an aqueous solution of FAT 40812/A was based on the OECD Guideline No. 115: "Surface Tension of Aqueous Solutions" (1995) and on the EEC Directive 92/69, Part A, Methods for the determination of physico-chemical properties, A.5 "Surface tension", EEC Publication No. L383, December 1992. The calibration factor was determined to be 1.016 for double distilled water. In conclusion, the surface tension of FAT 40810/A in water (at a concentration of about 0.1 %) was determined to be 71.4 mN/m at 20.2 °C ± 0.2 °C. Based on the criteria as outlined in the EEC Guideline, FAT 40'810/A is not a surface active substance.

Key value for chemical safety assessment

Surface tension:
71.4
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information