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EC number: 236-798-4 | CAS number: 13487-27-9
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:
- 12/13/2003
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Information is derived from a reliable non-GLP in-house study using the transpiration method equivalent to OECD TG 104, gas saturation method.
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- GLP compliance:
- no
- Type of method:
- dynamic method
- Key result
- Temp.:
- 24 °C
- Vapour pressure:
- 38.5 Pa
- Transition / decomposition:
- no
- Conclusions:
- The vapour pressure of the Veilex 2 was investigated using the Transpiration method equivalent to OECD TG 104, gas saturation method, in a reliable non-GLP study. This is a dynamic method and has recently been updated for use of low volatile substances. A precisely known volume of air is sampled through a trap containing the sorbent Tenax TA. The adsorbed compound is desorbed and eluted onto a GC column where it is identified and quantified using a calibration curve. The mass of analyte per unit volume collected is used to calculate the vapour pressure. The vapour pressure of the Veilex 2 was found to be 38.5 Pa at 24°C.
- Executive summary:
The vapour pressure of the Veilex 2 was investigated using the Transpiration method equivalent to OECD TG 104, gas saturation method. The vapour pressure of the substance was found to be 38.5 Pa at 24°C.
Reference
The transpiration method is used to determine the VP for materials having 10-3Pa to 103Pa. The substance has a VP of 38.5 Pa and is within the domain of the model.
This method is highly accurate with a relative standard deviation of < 5%, based on triplicate measurements. The use of flow controlling sampling techniques allows for accurate measurements over many orders of magnitude of VP values under a variety of conditions.
Description of key information
The vapour pressure of the Veilex 2 was investigated using the Transpiration method equivalent to OECD TG 104, gas saturation method. The vapour pressure of the substance was found to be 38.5 Pa at 24°C.
Key value for chemical safety assessment
- Vapour pressure:
- 38.5 Pa
- at the temperature of:
- 24 °C
Additional information
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