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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
data is from modelling database
Qualifier:
equivalent or similar to guideline
Guideline:
other: estimated data
Principles of method if other than guideline:
Estimate the vapour pressure of Pyrazine-2-carboxylic acid
GLP compliance:
not specified
Type of method:
other: estimated data
Specific details on test material used for the study:
- Name of test material: Pyrazinoic acid
- Molecular formula: C5H4N2O2
- Molecular weight: 124.099 g/mol
- Smiles notation: c1ncc(C(=O)O)nc1
- InChl: 1S/C5H4N2O2/c8-5(9)4-3-6-1-2-7-4/h1-3H,(H,8,9)
- Physical state: Solid
Key result
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
0.011 Pa
Remarks on result:
other: No detail available
Conclusions:
The estimated vapour pressure of Pyrazine-2-carboxylic acid at 25 deg C was 0.0114 Pa.
Executive summary:

The estimated vapour pressure of Pyrazine-2-carboxylic acid at 25 deg C was 0.0114 Pa.

Description of key information

The estimated vapour pressure of Pyrazine-2-carboxylic acid at 25 deg C was 0.0114 Pa.

Key value for chemical safety assessment

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

Additional information

The estimated vapour pressure of Pyrazine-2-carboxylic acid at 25 deg C was 0.0114 Pa.