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Physical & Chemical properties

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 mm Hg
Remarks on result:
other: 0.00000000395 mm Hg is equivalent to vapour pressure of 5.26E-007 Pa
Transition / decomposition:
no
Remarks:
no data provided in method

Selected VP: 3.95E-009 mm Hg (Modified Grain Method)           

Equivalent to a vapour pressure of 5.26E-007 Pa (Modified Grain Method)

Overview of QSARs estimations on Vapour pressure of Reaction mass of SEX

Method

 

Results

Remarks

Reference

QSAR estimate

Vapor Pressure Estimations (25 deg C):

(Using BP: 462.37 deg C (estimated))

(Using MP: 195.02deg C (estimated))

VP: 1.94E-010 mm Hg (Antoine Method) : 2.59E-008 Pa  (Antoine Method)

VP: 3.95E-009 mm Hg (Modified Grain Method): 5.26E-007 Pa  (Modified Grain Method)

VP: 1.06E-008mm Hg (Mackay Method): 1.41E-006 Pa 

(Mackay Method)

Selected VP

3.95E-009 mm Hg (Modified Grain Method)5.26E-007 Pa (Modified 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 5.26E-007 Pa at 25C.
Executive summary:

A QSAR method predicts the vapour pressure of this substance to be 5.26E-007 Pa at 25C.

Description of key information

A QSAR method predicts the vapour pressure of this substance to be 3.5E-007 Pa at 25C.

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 5.26E-007 Pa at 25C.