Registration Dossier
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EC number: 297-668-0 | CAS number: 93686-18-1
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 19.03.2015 - 19.06.2015
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Due to the complex composition and the surface active properties of the sample the vapour pressure could not be determined by the methods layed down by Regulation (EC) 440/2008, EU-method A.4. The sample is an aqueous solution. GC-MS analysis (headspace) showed that there are no volatile organic substances present in concentrations above the determination limits. The vapour pressure therefore results from the vapour pressure of water.
- GLP compliance:
- yes
- Type of method:
- other: GC-MS (headspace) measurement in gaseous phase in closed vessel at room temperature
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 27 hPa
- Remarks on result:
- other: vapour pressure of the aqueous solution
- Conclusions:
- Sulfonic acids, shale-oil, sodium salts has a vapour pressure of 20.7 hPa (20°C). The sample is an aqueous solution. GC-MS analysis (headspace) showed that there are no volatile organic substances present in concentrations above the determination limits. The vapour pressure therefore results from the vapour pressure of water.
- Executive summary:
Sulfonic acids, shale-oil, sodium salts has a vapour pressure of 20.7 hPa (20°C). The sample is an aqueous solution. GC-MS analysis (headspace) showed that there are no volatile organic substances present in concentrations above the determination limits. The vapour pressure therefore results from the vapour pressure of water.
Reference
Description of key information
Sulfonic acids, shale-oil, sodium salts has a vapour pressure of 20.7 hPa (20°C). The sample is an aqueous solution. GC-MS analysis (headspace) showed that there are no volatile organic substances present in concentrations above the determination limits. The vapour pressure therefore results from the vapour pressure of water.
Key value for chemical safety assessment
- Vapour pressure:
- 20.7 hPa
- at the temperature of:
- 20 °C
Additional information
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