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Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
not applicable
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
QSAR prediction: QSAR method cited as reliable in the REACH guidance
Qualifier:
no guideline followed
Principles of method if other than guideline:
not applicable. QSAR method
GLP compliance:
no
Remarks:
not applicable. QSAR method
Type of method:
other: not applicable. QSAR method
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: 4.18E-021 mm Hg   is equivalent to vapour pressure of 5.57E-019 Pa
Transition / decomposition:
no
Remarks:
no data provided in method

Selected VP: 4.18E-021 mm Hg (Modified Grain Method)

 

Equivalent to a vapour pressure of  5.57E-019 Pa (Modified Grain Method)

Overview of QSARs estimations on Vapour pressure of Calcium dodecylbenzenesulphonate/ Benzenesulfonic acid, dodecyl-, calcium salt

 

 

Method

 

Results

Remarks

Reference

QSAR estimate

Vapor Pressure Estimations (25 deg C):

(Using BP: 843.05 deg C (estimated))

(Using MP: 349.84 deg C (estimated))

VP: 9.45E-037 mm Hg (Antoine Method)

: 1.26E-034 Pa (Antoine Method)

VP: 4.18E-021 mm Hg (Modified Grain Method)

: 5.57E-019 Pa (Modified Grain Method)

VP: 2.46E-020 mm Hg (Mackay Method)

: 3.27E-018 Pa (Mackay Method)

Selected VP: 4.18E-021 mm Hg (Modified Grain Method)

: 5.57E-019 Pa (Modified Grain Method)

Subcooled liquid VP: 2.14E-017 mm Hg (25 deg C, Mod-Grain method)

: 2.86E-015 Pa (25 deg C, Mod-Grain method)

Valid with restrictions (2); QSAR method;

Estimated values

MPBPWIN (v.1.43)
Conclusions:
A QSAR method predicts the vapour pressure of this substance to be 5.57E-019 at 25C.
Executive summary:
A QSAR method predicts the vapour pressure of this substance to be 5.57E-019 at 25C.

Description of key information

A QSAR method predicts the vapour pressure of this substance to be 5.57E-019 at 25C.
Vapor pressure was calculated using the Lyman method, and found to be 3E-13 Pa.

Key value for chemical safety assessment

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

Additional information

A QSAR method predicts the vapour pressure of this substance to be 5.57E-019at 25C.
Vapor pressure was calculated using the Lyman method, and found to be 3E-13 Pa.