Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Study period:
2009
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The vapour pressure has been calculated with two different calculation programs. According to “Endpoint specific guidance R.7.1.5.3” SPARC and MPBPWIN are recommended as calculation programs for vapour pressure.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Report Date:
2010

Materials and methods

Principles of method if other than guideline:
The vapour pressure has been calculated with two different calculation programs.
According to “Endpoint specific guidance R.7.1.5.3” SPARC and MPBPWIN are recommended as calculation programs for vapour pressure.
GLP compliance:
no
Type of method:
other: calculation

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Vapour pressureopen allclose all
Temp.:
25 °C
Vapour pressure:
0.001 Pa
Remarks on result:
other: Calculation method SPARC
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: Calculation method MPBPWIN (v1.43) Modified Grain method

Applicant's summary and conclusion

Conclusions:
Vapor pressure: 0.00058 Pa at 25°C using MPBWIN calculation method as this was the highest predicted value.
Executive summary:

Vapor pressure: 0.00058 Pa at 25°C using MPBWIN calculation method as this was the highest predicted value.

Since the vapour pressure was predicted to be below 1.0 Pa, and such low vapour pressures are experimentally very difficult to perform, calculation of vapour pressure was selected. Substances with low vapour pressure are not very likely to vaporise and become airborne.