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Physical & Chemical properties

Stability: thermal, sunlight, metals

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Description of key information

The substance is thermally instable under the test condition. 
SADT for a non-stabilized item, isolated 25 m³-tank: 50 °C
SADT for a stabilized item, isolated 25 m³-tank: 100 °C
AZT24: 87 °C (corresponding to AZT72 of 65 °C)

Additional information

SADT was determined according to UN-RTDG MTC Test H.2 for an isolated-25 m³ tank using an adiabatic storage test. AZT24 was determined by an adiabatic calorimeter test.

Triallyl isocyanurate undergoes exothermic decomposition process at approximately 128 °C (DSC) or 140 °C (adiabatic calorimeter), which can lead to higher temperature and thermal explosion. Violent ruture of contains may occur at temperatures generated.

Justification for classification or non-classification

Self-heating property: With a melting point of 24.8 °C, triallyl isocyanurate is considered not self-heating.

Self-reactive property: Triallyl isocyanurate undergoes exothermal decomposition at approximately 128 °C (DSC). SADT are 100 °C for stabilised test item and 50 °C for unstabilised item respectively for an isolated 25 m³-tank, which correspond to approximately 27 tons of test items (density 1.1 d/mL). Under the test condition, SADT less than 75 °C for a 50 kg package is not expected. Thus, triallyl isocyanurate does not need to be classified into the hazard class of self-reactive substance according to CLP.

A thermal stabilisation measures shall be implemented for transport of unstabilized triallyl isocyanurate only in high volume. 

Corrosive to metals: Triallyl isocyanurate has not to be classified as metal corrosive.