Registration Dossier
Registration Dossier
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EC number: 944-732-7 | 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:
- 11 December 2017 - 30 May 2018
- 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
- Type of method:
- OECD harmonised ring method
- Surface tension:
- 72.5 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Remarks on result:
- other: Harkins Corrected Value
- Conclusions:
- The surface tension of the test item was determined to be 72.5 mN/m at a concentration of 1 g/L at 20°C.
- Executive summary:
The surface tension of the test item was determined in a study following OECD 115 and EC Method A.5 guidelines, using the OECD harmonised ring method. The surface tension of the test item was determined to be 72.5 mN/m at a concentration of 1 g/L at 20°C.
The study is a GLP-compliant, guideline experimental study and is fully acceptable for assessment of this endpoint.
Reference
Table 1: Summary of Surafce Tension Results
| Time (minutes) | Surface tension (mN/m) | |||
| Measured | Calibration corrected | |||
| A | B | A | B | |
| 0 | 72.0 | 72.5 | 72.0 | 73.0 |
| 5 | 72.5 | 72.5 | 73.0 | 73.0 |
| 10 | 72.5 | 72.5 | 73.0 | 73.0 |
| 15 | 73.0 | 73.0 | 73.5 | 73.5 |
| 20 | 73.0 | 73.0 | 73.5 | 73.5 |
| 25 | 72.5 | 73.0 | 73.0 | 73.5 |
| 30 | 72.5 | 73.0 | 73.0 | 73.5 |
Mean calibration corrected surface tension = 73.0 mN/m
Harkins-Jordan corrected value = 72.5 mN/m
Description of key information
The surface tension of the test item was determined to be 72.5 mN/m at a concentration of 1 g/L at 20°C.
Key value for chemical safety assessment
- Surface tension:
- 72.5
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
The surface tension of the test item was determined in a study following OECD 115 and EC Method A.5 guidelines, using the OECD harmonised ring method.
The study is a GLP-compliant, guideline experimental study and is fully acceptable for assessment of this endpoint.
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