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EC number: 211-694-1 | CAS number: 687-47-8
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:
- 2010-04-19 to 2010-08-12
- 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:
- - Trade name: Purasolv EL
- Batch number: 0909001195
- Appearance: Clear colourless liquid
- Purity: 99.83 % w/w
- Storage: at room temperature, in the dark under nitrogen
- Expiry date: 2010-09-14 - Key result
- Surface tension:
- 70.5 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- The surface tension of a test solution at a ethyl (S)-lactate concentration of 1 g/L in water at 20 °C was 70.5 mN/m. The test substance is considered not to be surface active.
- Executive summary:
The OECD harmonized ring method was used for determining the surface tension of PURASOLV®EL (ethyl-(S)-lactate). The surface tension of a test solution at a ethyl-(S)-lactate concentration of 1 g/L in water at 20 °C was 70.5 mN/m. The test substance is considered not to be surface active.
Reference
Table 1. Surface tension of PURASOLV®EL (ethyl-S-lactate)
Measurement |
Time passed [minutes] |
Surface tension [mN/m] |
||
individual |
mean |
Mean multiplied by Φband Harkins-Jordan corrected value |
||
1 |
20 |
70.2 |
70.2 |
70.5 |
2 |
21 |
70.3 |
||
3 |
22 |
70.1 |
||
4 |
23 |
70.1 |
||
5 |
24 |
70.3 |
||
Description of key information
The OECD harmonized ring method was used for the determination of the surface tension of PURASOLV®EL (Ethyl (S)-lactate). The surface tension of a test solution at a Ethyl (S)-lactate concentration of 1 g/L in water at 20 °C was 70.5 mN/m. The test substance is therefore considered as not surface active.
Key value for chemical safety assessment
- Surface tension:
- 70.5
- in mN/m at 20°C and concentration in mg/L:
- 1 000
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