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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Vapour pressure

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Administrative data

Link to relevant study record(s)

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
Justification for type of information:
In accordance with column 2 of REACH Annex VII, the study does not need to be conducted if the melting point is between 200°C and 300°C, a limit value based on measurement or a recognised calculation method is sufficient. Although the method is not validated for organic salts, the calculated vapour pressure appears to be realistic based on the high melting temperature of the salt.
Principles of method if other than guideline:
Calculation using Episuite (MPBPVP v1.43; Modified Grain method)
Key result
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
0.001 Pa
Conclusions:
A vapour pressure of 0.001 Pa (25 °C) was calculated using Episuite (MPBPVP v1.43; Modified Grain method).

Description of key information

A vapour pressure of 0.001 Pa (25 °C) was calculated using Episuite (MPBPVP v1.43; Modified Grain method). 

Key value for chemical safety assessment

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

Additional information

In accordance with column 2 of REACH Annex VII, the study does not need to be conducted if the melting point is between 200°C and 300°C, a limit value based on measurement or a recognised calculation method is sufficient. Although the method is not validated for organic salts, the calculated vapour pressure appears to be realistic based on the high melting temperature of the salt.