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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Study period:
12/04/2013
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The predicted vapour pressure falls within the range of values obtained from the data set used to assess the accuracy of the model. The model has been shown to have good accuracy, especially when experimental values of melting point are used.
Principles of method if other than guideline:
The vapour pressure of the two main constituents of the substance were estimated and then summed to give an estimation of the vapour pressure.
GLP compliance:
no
Type of method:
other: Estimation using MPBPVP v1.43
Temp.:
25 °C
Vapour pressure:
0 Pa

Estimated vapour pressure for sodium 2-(dodecyloxy)-2-oxoethane-1-sulphonate: 4.03E-12 Pa

Estimated vapour pressure for sodium 1-tetradecyl sulphonatoacetate: 7.21E-13 Pa

Description of key information

The estimated vapour pressure of the substance is 4.8E-12 Pa.

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
25 °C

Additional information

The vapour pressure of the two main constituents sodium 2-(dodecyloxy)-2-oxoethane-1-sulphonate and sodium 1-tetradecyl sulphonatoacetate were estimated using the modified grain method in MPBPVP v1.43 and then summed to give as estimated vapour pressure for the substance. The estimated vapour pressure of the substance is 4.8E-12 Pa.