Registration Dossier
Registration Dossier
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EC number: 204-794-1 | CAS number: 126-58-9
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- key study
- Study period:
- 2009-11-30
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- accepted calculation method
- Principles of method if other than guideline:
- Software tool(s) used including version: SPARC and MPBPWIN (v1.43) Modified Grain method
Since the melting point is above 200 °C and 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. The vapour pressure has been calculated with two different calculation programs. According to “Endpoint specific guidance R.7.1.5.3” are SPARC and MPBPWIN recommended as calculation programs for vapour pressure. Because the results from the two calculation programs differ the highest value has been reported. - GLP compliance:
- no
- Type of method:
- other: calculation
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: calculation with SPARC
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: calculation with MPBPWIN v1.43 (Modified Grain method)
- Conclusions:
- Since the vapour pressure is low with both calculation methods (SPARC and MPBPWIN), the substance is not likely to vapourise and become airborne.
The highest calculated value is 2.3 x 10^-10 Pa. - Executive summary:
Since the melting point is above 200 °C and the vapour pressure was predicted to be below 1.0 Pa,and such low vapour pressures are experimentally very difficult to perform, calculation of vapourpressure was selected. Substances with low vapour pressure are not very likely to vaporise andbecome airborne. The vapour pressure has been calculated with two different calculation programs, SPARC and MPBPWIN. The highest calculated value is 2.3 x 10^ -10 Pa.
Reference
Description of key information
Since the melting point is above 200 °C and the vapour pressure was predicted to be below 1.0 Pa,and such low vapour pressures are experimentally very difficult to perform, calculation of vapourpressure was selected. Substances with low vapour pressure are not very likely to vaporise andbecome airborne. The vapour pressure has been calculated with two different calculation programs, SPARC and MPBPWIN. The highest calculated value is 2.3 x 10^ -10 Pa.
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
Additional information
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