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Physical & Chemical properties

Explosiveness

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Description of key information

The substance is not classified as a explosive substance.

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

The substance is stable at room temperature, however tends to polymerize violently in the presence of impurities. The substance is not sensitive against shock or friction, however explodes under influence of a flame. Explosiveness depends on pressure, temperature, concentration, the type, form, and energy of the ignition source, and the type of container. Decomposition temperature: 571 °C (calculated).

For this reason the substance is classified as a chemical unstable gas that "may react explosively even in the absence of air" H230.

Justification for classification or non-classification

Given that the substance explodes under the influence of a flame, it is classified with H230 "May react explosively even in the absence of air"