Registration Dossier
Registration Dossier
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EC number: 231-104-6 | CAS number: 7439-95-4
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- other: handbook data
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Secondary literature: handbook with reliable values
Data source
Reference
- Reference Type:
- review article or handbook
- Title:
- Magnesium Taschenbuch
- Author:
- Aluminium-Zentrale Düsseldorf
- Year:
- 2 000
- Bibliographic source:
- Aluminium-Verlag Düsseldorf, 2000, 1. Edition, ISBN 3-87017-264-9, p. 86
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- not applicable: handbook data
- GLP compliance:
- not specified
- Type of method:
- other: no data
Test material
- Reference substance name:
- Magnesium
- EC Number:
- 231-104-6
- EC Name:
- Magnesium
- Cas Number:
- 7439-95-4
- Molecular formula:
- Mg
- IUPAC Name:
- magnesium dihydride
- Details on test material:
- - Name of test material: Magnesium
- Substance type: metal
- Physical state: solid
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- 427 °C
- Vapour pressure:
- 0.933 Pa
- Remarks on result:
- other: solid
- Temp.:
- 527 °C
- Vapour pressure:
- 21.328 Pa
- Remarks on result:
- other: solid
- Temp.:
- 627 °C
- Vapour pressure:
- 231.542 Pa
- Remarks on result:
- other: solid
- Temp.:
- 650 °C
- Vapour pressure:
- 372.04 Pa
- Remarks on result:
- other: solid
- Temp.:
- 650 °C
- Vapour pressure:
- 358.17 Pa
- Remarks on result:
- other: liquid
- Temp.:
- 727 °C
- Vapour pressure:
- 1 364.058 Pa
- Remarks on result:
- other: liquid
- Temp.:
- 827 °C
- Vapour pressure:
- 5 792.018 Pa
- Remarks on result:
- other: liquid
- Temp.:
- 927 °C
- Vapour pressure:
- 19 121.352 Pa
- Remarks on result:
- other: liquid
- Temp.:
- 1 027 °C
- Vapour pressure:
- 52 056.849 Pa
- Remarks on result:
- other: liquid
- Temp.:
- 1 105 °C
- Vapour pressure:
- 102 219.51 Pa
- Remarks on result:
- other: liquid
Any other information on results incl. tables
Because of the high vapor pressure at the melting point temperature (650°C) of Mg it easily sublimates in vacuum.
Applicant's summary and conclusion
- Conclusions:
- The vapor pressure of the solid Mg at the melting point (650°C) is 372 Pa
The vapor pressure of the liquid Mg at the freezing(/melting point) (650°C) is 358 Pa
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