Registration Dossier
Registration Dossier
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EC number: 466-480-2 | CAS number: -
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 04 July 2006 to 06 September 2006
- 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:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- RCC Ltd, CH-4452 Itingen, Switzerland
- Type of method:
- ring method
- Specific details on test material used for the study:
- Identity: FAT 40826/A
Batch: TZ 5604 BOP 01/06
Purity: Content of organic part (Na-salt): approx. 78 %
Oligomers: 13 %
Main component: approx. 48 %
Appearance: Solid, orange powder
Expiration date: February 01, 2011
Storage: At room temperature at about 20 °C in a desiccator. - Surface tension:
- 60.9 mN/m
- Temp.:
- 20.9 °C
- Conc.:
- 0.1 other: % (w/v)
- Conclusions:
- The surface tension of FAT 40826 at 20.9 °C in water (concentration 0.1 %) was determined to be 60.9 mN/m.
- Executive summary:
In a GLP-compliant study, the determination of the surface tension of an aqueous solution of FAT 40826/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 <t>b was determined to be 1.0154 for double distilled water. In conclusion, the surface tension of FAT 40826/A in water (at a concentration of about 0.1 %) was determined to be 60.9 mN/m at 20.9 °C. Based on the criteria as outlined in the EEC Guideline, FAT 40826/A is not a surface active substance.
Reference
Determination of Surface Tension for the Test Item Solution
Time expired [hours:min] | Temperature [°C] | Surface tension [mN/m] | |||
measured | mean value calculated from the bold values (σ*) | mean value corrected for calibration (σ1) | σ1corrected for Harkins-Jordan (σ2) | ||
First sample | |||||
0:30 | 20.8 | 61.0 | 60.48 | 61.42 | 60.67 |
0:31 | 20.8 | 60.9 | |||
0:32 | 20.8 | 60.5 | |||
0:33 | 20.8 | 60.3 | |||
0:34 | 20.8 | 60.2 | |||
0:35 | 20.8 | 60.0 | |||
Second sample | |||||
0:32 | 20.9 | 61.0 | 60.82 | 61.75 | 61.04 |
0:33 | 20.9 | 61.8 | |||
0:34 | 20.9 | 61.1 | |||
0:36 | 20.9 | 60.7 | |||
0:37 | 20.9 | 60.3 | |||
0:38 | 20.9 | 60.0 | |||
Mean value from both samples: σ = 60.9 mN/m
Description of key information
The surface tension of the test substance at 20.9 °C in water (concentration 0.1 %) was determined to be 60.9 mN/m.
Key value for chemical safety assessment
- Surface tension:
- 60.9
Additional information
In a GLP-compliant study, the determination of the surface tension of an aqueous solution of FAT 40826/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 <t>b was determined to be 1.0154 for double distilled water. In conclusion, the surface tension of FAT 40826/A in water (at a concentration of about 0.1 %) was determined to be 60.9 mN/m at 20.9 °C. Based on the criteria as outlined in the EEC Guideline, FAT 40826/A is not a surface active substance.
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