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EC number: 423-860-2 | CAS number: 56309-94-5
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:
- 1998-02-20
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: 92/69/EWG, A.5 (Ring method)
- Version / remarks:
- 1992
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- ring method
- Key result
- Surface tension:
- 63.9 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 007 mg/L
- Conclusions:
- The surface tension of an aqueous solution of the test item at a concentration of 1.007 g/L was 63.9 mN/m.
- Executive summary:
The determination of the surface tension of an aqueous solution of the test item was based on EEC-Directive 92/69 EEC, A.5 "Surface tension" (1992) and OECD guideline no. 115: "Surface tension of aqueous solutions", July 27, 1995. The surface tension of an aqueous solution of the test item at a concentration of 1.007 g/L was 63.9 mN/m. The temperature of measurement was 20.0 ± 1.0°C. Based on the criteria as outlined in the guideline, it is concluded that the test item should not be regarded as a surface active material.
Reference
Table 1 Surface Tension of an aqueous solution of the test item
Determination |
Time expired [min] |
Surface tension [mN/m] |
Surface Tension [mN/m] |
||
|
|
Measured |
Mean not corrected |
Mean corrected for calibration |
Mean corrected using Harkins & Jordan 1930 |
1 |
15 |
64.0 |
63.8 |
64.5 |
63.9 |
2 |
17 |
63.6 |
|||
3 |
18 |
63.9 |
|||
4 |
19 |
63.8 |
|||
5 |
20 |
63.6 |
|||
Description of key information
Surface tension of the test item in aqueous solution at a concentraion of 1.007 g/L was determined to be 63.9 mN/m at 20 °C (reference 4.10 -1).
Key value for chemical safety assessment
- Surface tension:
- 63.9
- in mN/m at 20°C and concentration in mg/L:
- 1 007
Additional information
The determination of the surface tension of an aqueous solution of the test item was based on EEC-Directive 92/69 EEC, A.5 "Surface tension" (1992) and OECD guideline no. 115: "Surface tension of aqueous solutions", July 27, 1995. The surface tension of an aqueous solution of the test item at a concentration of 1.007 g/L was 63.9 mN/m. The temperature of measurement was 20.0 ± 1.0°C. Based on the criteria as outlined in the guideline, it is concluded that the test item should not be regarded as a surface active material.
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