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Surface tension

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Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experiment start and completion date - 05 April 2006; Study completion date - 06 September 2006.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
ring method
Specific details on test material used for the study:
Identity: FAT 40825/A
Batch number: CHU 297 / BOP 04/05
Purity: Organic part (Na-salt): approx. 83.7 %; All coloured components: approx. 80.54 %; Main component: approx. 59.1 %.
Appearance: Solid, black powder
Storage conditions: At room temperature at about 20 °C
Expiration date: December 31, 2010
Surface tension:
75.3 mN/m
Temp.:
21.2 °C
Conc.:
1 g/L
Conclusions:
The surface tension of FAT 40825/A in water (at a concentration of about 0.1 %) was determined to be 75.3 mN/mat 21.2 °C
Executive summary:

The determination of the surface tension of an aqueous solution of FAT 40825/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 experiment was performed using a tensiometer. The calibration factor was determined to be 1.0493 for double distilled water. In conclusion, the surface tension of FAT 40825/A in water (at a concentration of about 0.1 %) was determined to be 75.3 mN/mat 21.2 °C. FAT 40825/A is not a surface active substance.

Description of key information

The surface tension of FAT 40825/A in water (at a concentration of about 0.1 %) was determined to be 75.3 mN/mat 21.2 °C.

Key value for chemical safety assessment

Surface tension:
75.3
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information

The determination of the surface tension of an aqueous solution of FAT 40825/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 experiment was performed using a tensiometer. The calibration factor was determined to be 1.0493 for double distilled water. In conclusion, the surface tension of FAT 40825/A in water (at a concentration of about 0.1 %) was determined to be 75.3 mN/mat 21.2 °C. FAT 40825/A is not a surface active substance.