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Physical & Chemical properties

Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
Data from handbook & authorative databases
Qualifier:
according to
Guideline:
other: As mention below
Principles of method if other than guideline:
To determine the melting point of pyrazine-2-carboxylic acid
GLP compliance:
no
Type of method:
other: Not specified
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
Decomposition:
yes
Decomp. temp.:
225 °C
Sublimation:
no
Remarks on result:
other: No other detail available
Conclusions:
It is concluded that the decomposition temperature of pyrazine-2-carboxylic acid is 225 °C. At this temperature pyrazine-2-carboxylic acid starts decomposing.
Executive summary:

It is concluded that the decomposition temperature of pyrazine-2-carboxylic acid is 225 °C. At this temperature pyrazine-2-carboxylic acid starts decomposing.

Description of key information

It is concluded that the decomposition temperature of pyrazine-2-carboxylic acid is 225 °C. At this temperature pyrazine-2-carboxylic acid starts decomposing.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
225 °C

Additional information

It is concluded that the decomposition temperature of pyrazine-2-carboxylic acid is 225 °C. At this temperature pyrazine-2-carboxylic acid starts decomposing. From the other reliable sources it concluded that pyrazine-2-carboxylic acid having decomposition temperature in range of 222 to 225 Deg C.