Registration Dossier
Registration Dossier
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EC number: 200-906-8 | CAS number: 75-83-2
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:
- January 2010
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: According to standard test method, but no GLP lab
- Justification for type of information:
- A discussion and report on the read across strategy is given as an attachment in IUCLID Section 13.
- Reason / purpose for cross-reference:
- read-across: supporting information
- Qualifier:
- according to guideline
- Guideline:
- other: Wilhelmy plate
- Deviations:
- not specified
- Principles of method if other than guideline:
- The Wilhelmy plate consists of a thin plate usually on the order of a few centimeters square. The plate is often made from glass or platinum which may be roughened to ensure complete wetting. The plate is cleaned thoroughly and attached to a scale or balance via a thin metal wire. The force on the plate due to wetting is measured via a tensiometer or microbalance and used to calculate the surface tension (σ) using the Wilhelmy equation.
- GLP compliance:
- no
- Remarks:
- No GLP lab
- Type of method:
- plate method
- Key result
- Surface tension:
- 18.2 mN/m
- Temp.:
- 25 °C
- Conc.:
- 100 vol%
- Conclusions:
- Under the conditions of this study a surface tension of 18.2 mN/m at 25°C was determined for the test substance Hydrocarbons, C6, isoalkanes, <5% n-hexane
- Executive summary:
Under the conditions of this study a surface tension of 18.2 mN/m at 25°C was determined for the test substance Hydrocarbons, C6, isoalkanes,
Reference
Description of key information
A surface tension study on 2,2 -dimethylbutane does not need to be conducted because based on structure, surface activity is not expected or cannot be predicted.
There is no data available for 2,2 -dimethylbutane. Data is available for Hydrocarbons, C6, isoalkanes, <5% n-hexane and Isohexane and this data is used for read across to 2,2 -dimethylbutane.
The surface tension of Hydrocarbons, C6, isoalkanes, <5% n-hexane is between 16 and 20 mN/m at 25°C according Wilhelmy plate method.
Key value for chemical safety assessment
Additional information
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
