Registration Dossier
Registration Dossier
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EC number: - | 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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Justification for type of information:
- Data is from Lab study report
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 9101:1987 Surface active agents: Determination of interfacial tension -Drop volume method.
- Principles of method if other than guideline:
- The surface tension of a liquid test chemical is an environmentally relevant physical chemical property because Surface tension depends on the nature of the liquid, the surrounding environment and temperature. Liquids where molecules have large attractive intermolecular force will have a large surface tension.
- GLP compliance:
- no
- Type of method:
- other: drop volume method
- Key result
- Surface tension:
- 41.07 mN/m
- Temp.:
- 20 °C
- Remarks on result:
- other: Other data not known
- Conclusions:
- Experimental study was performed adapting method from ISO 9101:1987 Surface active agents: Determination of interfacial tension -Drop volume method.
The surface tension of test substance was determined to be 41.07 mN/m at 20 ºC and 969.5 hPa . - Executive summary:
- A study was performed to determine the surface tension of test chemical at atmospheric pressure. The study was conducted in accordance with ISO 9101:1987 Surface active agents: Determination of interfacial tension -Drop volume method. The mean surface tension was determined to be 41.07 dynes/cm at 20 ºC and 969.5 hPa.
Reference
Observation -
| Density of Test Chemical in g/cm³ | 0.90 |
| Surface tension of water at 20 °C | 72.89 |
| Density of water at 20 °C | 0.9982 |
| Method Details | Observations |
|
Atmospheric pressure(Mean) |
hPa |
969.5 |
No. of drops of water (nw)(Mean) |
|
65 |
No. of drops of test chemical (nl)(Mean) |
|
104 |
¥l= surface tension of test chemical
¥w = surface tension of water
ρl= density of test chemical
ρw =density of water
nl= no. of drops of test chemical
nw = no. of drops of water
¥l=0.90X65X72.89
0.9982X104
¥l = 4,264.07 / 103.81
¥l = 41.07 dynes/cm
Description of key information
Experimental study was performed adapting method fromISO 9101:1987 Surface active agents: Determination of interfacial tension -Drop volumemethod.
The surface tension of test substance was determined to be 41.07 mN/m at 20 ºC and 969.5 hPa .
Key value for chemical safety assessment
- Surface tension:
- 41.07
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.
