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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:
March 22, 2012 - May 04, 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study performed according to guideline and GLP
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Qualifier:
according to
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
GLP compliance:
yes (incl. certificate)
Type of method:
gas saturation method
Specific details on test material used for the study:
- Names of test material (as cited in study report): Lemonile; 3,7-dimethyl-2,6-nonadienenitrile
- Substance type: Colourless liquid
- Physical state: Liquid
- Analytical purity: 99.4 % (sum of components)
- Lot No: VE00101509
- Expiration date of the lot/batch: 2012-09-09
Temp.:
20 °C
Vapour pressure:
1.7 Pa

Headspace vapour concentrations of Lemonile as found after an equilibration time of 24 h, 48 h and 72 h are exposed in Table 1. The values are in agreement, indicating that the headspace was saturated in test substance vapour.

Table 1

Equilibration time [h]

Headspace concentration [g/m3]

 

 

24

0.125

48

0.106

72

0.112

 

 

Average

0.115

Conclusions:
Vapour pressure of Lemonile is 1.7 Pa at 20°C

Description of key information

Vapour pressure 1.7 Pa at 20°C (OECD 104)

Key value for chemical safety assessment

Vapour pressure:
1.7 Pa
at the temperature of:
20 °C

Additional information