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Physical & Chemical properties

Auto flammability

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Description of key information

No spontaneous ignition.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
293.6 °C

Additional information

Evidences connected to the long experience in handling and use of the molecule does not indicate a spontaneous ignition potential.

Moreover, a study conducted on a similar substance, was used as supporting evidence. Molecular structure of Similar Substance 02 consists of 3 naphtalene rings connected via diazo bond and an amino phenyl ligand. Substituents are sulphonate groups. Despite test substance is formed by only 2 naphtyl rings connected via diazo bond and has a higher sulphonation degreee, no significant differences in terms of autoignition potential are expected.