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Physical & Chemical properties

Melting point / freezing point

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Description of key information

Decomposition: 282 - 375 °C

Key value for chemical safety assessment

Additional information

Acid Red 131:1 release water/imbibition solvent by between 50 and 150 °C, followed by product decomposition between 282 and 375 °C (onset at 307.5 °C, enthalpy: 113.9 J/g).