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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
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 for each alkyl dimethylamine oxide constituent of the substance was estimated using MPBPWIN v 1.43 within EPI Suite
GLP compliance:
no
Type of method:
other: Estimation using MPBPWIN v1.43
Temp.:
25 °C
Vapour pressure:
ca. 0 Pa
Remarks on result:
other: Estimated vapour pressure for C10 amine oxide
Temp.:
25 °C
Vapour pressure:
ca. 0 Pa
Remarks on result:
other: Estimated vapour pressure for C12 amine oxide
Temp.:
25 °C
Vapour pressure:
ca. 0 Pa
Remarks on result:
other: Estimated vapour pressure for C14 amine oxide
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: Estimated vapour pressure for C16 amine oxide
Conclusions:
Based on the estimated vapour pressure values for the individual alkyl chain length constituents, the vapour pressure of the substance is estimated to be between 1.7E-06 and 7.5E-05 Pa.
Executive summary:

It is not possible to measure the vapour pressure of the substance as it decomposes before boiling. The vapour pressures of the individual alkyl dimethylamine oxides were estimated using MPBPWIN v 1.43. Based on these calculations, the vapour pressure of the substance is estimated to be between 1.7E-06 and 7.5E-05 Pa.

Description of key information

Based on the estimated vapour pressures of the pure alkyl dimethylamine oxides, the vapour pressure is expected to be in the range of 1.7E-06 and 7.5E-05 Pa at 25 °C.

Key value for chemical safety assessment

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

Additional information

It is not possible to measure the vapour pressure of the substance as it decomposes before boiling. The vapour pressures of the individual alkyl dimethylamine oxides were estimated using MPBPWIN v 1.43 (modified grain method). Based on these calculations, the vapour pressure of the substance is estimated to be between 1.7E-06 and 7.5E-05 Pa at 25 °C.