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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: well performed calculation with acknowledged software. The MPBPWIN 1.43 software does not accept structures containing iron. Therefore the vapour pressure from surrogate disodium oxalate was calculated.
Qualifier:
according to
Guideline:
other: calculation
Principles of method if other than guideline:
Calculation of the vapour pressuere with Software / MPBPWIN 1.43 (Syracuse Research Corporation)
GLP compliance:
no
Type of method:
other: calculation
Key result
Temp.:
20 °C
Vapour pressure:
< 0 Pa

Taking into account the structure and the molecular weight of trisodium trioxalatoferrate it is clear, that the vapour pressure of the submission substance will have an even lower vapour pressure than the much smaller disodium oxalate.

Conclusions:
The calculated vapour pressure of the disodium oxalate is < 0.000001 Pa at 20°C. Due to the much higher molecular weight the vapour pressure of the submission substance is expected to be lower.

Description of key information

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
20 °C

Additional information

well performed calculation with acknowledged software. The MPBPWIN 1.43 software does not accept structures containing iron. Therefore the vapour pressure from surrogate disodium oxalate was calculated.

The calculated vapour pressure is below the a.m. value.