Registration Dossier
Registration Dossier
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EC number: 927-510-4 | CAS number: 64742-49-0
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
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: According well defined standard method, no GLP lab.
- Qualifier:
- according to guideline
- Guideline:
- other: Wilhelmy plate
- Principles of method if other than guideline:
- Wilhelmy plate method is used to measure the surface tension using a stndardized plate with a plate tensiometer. The plate is moved towards the surface until the meniscus connects with it. The surface tension is calculated from the resulting force. Due to uncertain wetting behaviour, the plate can only be used for interfaces under certain limitations.
- GLP compliance:
- no
- Type of method:
- plate method
- Key result
- Surface tension:
- 20.7 mN/m
- Temp.:
- 25 °C
- Conc.:
- 100 vol%
- Conclusions:
- Under the conditions of this study a surface tension of 20.7 mN/m at 25 °C was determined for the test substance, Hydrocarbons, C7, n-alkanes, isoalkanes, cyclics.
- Executive summary:
Under the conditions of this study a surface tension of 20.7 mN/m at 25 °C was determined for the test substance, Hydrocarbons, C7, n-alkanes, isoalkanes, cyclics.
Reference
Description of key information
The surface tension range of Hydrocarbons, C7, n-alkanes, isoalkanes, cyclics is 19 to 22 mN/m at 25°C.
Key value for chemical safety assessment
Additional information
Wilhelmy plate method is used to measure the surface tension using a standardized plate with a plate tensiometer. A range of 19 to 22 mN/m at 25°C covers all possible grades within this substance description if measured with the agreed method. Using this method ExxonMobil Chemical (2010) determined the surface tension to be 20.7 mN/m at 25°C, demonstrating that the measured value falls within borderline values.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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