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EC number: 405-520-5 | CAS number: 95235-30-6 D-8; DD-8
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:
- 2003-03-04 to 2003-04-08
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- 92/69/EEC
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- 1995-07-27
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 304
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Key result
- Surface tension:
- 68.6 mN/m
- Temp.:
- 21.5 °C
- Conc.:
- 0.029 g/L
- Conclusions:
- D-8 was tested for surface tension of aqueous solutions of the test material according to EU Method A.5. The surface tension of a solution of 0.0293 g of test material was detected to 68.6 mN/m at 21.5 ± 0.5 °C. The test material is not considered to be a surface-active material.
- Executive summary:
D-8 was tested for surface tension of aqueous solutions of the test material. Substances having a surface tension below 60 mN/m are regarded as being surface-active, as stated in method A.5 of Commission Directive 92/69/EEC. The surface tension of a solution of 0.0293 g of test material was detected to 68.6 mN/m at 21.5 ± 0.5 °C. The test material is not considered to be a surface-active material.
Reference
Sample solution readings:
Time (mins) |
Reading (mN/m) |
Temperature (°C) |
87 |
67.0 |
21.5 |
95 |
69.0 |
21.5 |
102 |
69.0 |
21.5 |
109 |
69.0 |
21.5 |
116 |
69.0 |
21.5 |
122 |
69.0 |
21.5 |
Mean of last 5 readings: 69.0 mN/m;
Surface tension = reading x calibration factor
= 69.0 x 0.994
= 68.6 mN/m;
Temperature: 21.5 ± 0.5 °C;
pH of sample solution: 5.4
Description of key information
The surface tension of a solution of 0.0293 g of test material was detected to 68.6 mN/m at 21.5 ± 0.5 °C. Thus, the test material was not surface-active.
Key value for chemical safety assessment
- Surface tension:
- 68.6
- in mN/m at 20°C and concentration in mg/L:
- 29.3
Additional information
D-8 was tested for surface tension of aqueous solutions of the test material according to EU Method A.5. The surface tension of a solution of 0.0293 g of test material was detected to 68.6 mN/m at 21.5 ± 0.5 °C. Thus, the test material was not surface-active.
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