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Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Qualifier:
no guideline followed
Principles of method if other than guideline:
MPBPWIN (v1.43; modified grain method)
GLP compliance:
no
Type of method:
other: Calculation
Key result
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: Modified Grain method
Key result
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: Antoine method
Conclusions:
At 20 oC the vapour pressure of sodium formate is calculated to be 1x10-5 Pa (Modified Grain method) and 2.9x10-6 Pa (Antoine method).
Executive summary:

As the melting point of the test item was measured to be ≥200 oC (258 oC) it is acceptable to provide a vapour pressure value based on a recognised calculation method. At 20 oC the vapour pressure of sodium formate is calculated to be 1x10-5 Pa (Modified Grain method) and 2.9x10-6 Pa (Antoine method).

Description of key information

As the melting point of the test item was measured to between 200 and 300 oC (258 oC), it is acceptable to provide a vapour pressure value based on a recognised calculation method. At 20 oC the vapour pressure of sodium formate is calculated to be 1x10-5 Pa (Modified Grain method) and 2.9x10-6 Pa (Antoine method).

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
25 °C

Additional information