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Diss Factsheets

Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
4/11/2000
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.:
21.5 °C
Vapour pressure:
24 Pa
Conclusions:
The vapour pressure of Oxaspirane-819 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 Oxaspirane-819 was found to be 21.5 Pa at 24°C.
Executive summary:

The vapour pressure of Oxaspirane-819 was investigated using the Transpiration method equivalent to OECD TG 104, gas saturation method. The vapour pressure of the substance was found to be 21.5Pa at 24°C.

Description of key information

The vapour pressure of Oxaspirane-819 was investigated using the Transpiration method equivalent to OECD TG 104, gas saturation method. The vapour pressure of the substance was found to be 21.5Pa at 24°C.

Key value for chemical safety assessment

Vapour pressure:
21.5 Pa
at the temperature of:
24 °C

Additional information