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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties


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Administrative data

Link to relevant study record(s)

Description of key information

The test substance does not possess explosive properties. 

Key value for chemical safety assessment

non explosive

Additional information

The explosive properties of 1,2,4-triazole was determined with respect to thermal sensitivity, mechanical sensitivity when subjected to shock, and mechanical sensitivity when submitted to friction. 

The results of these observations indicated that the test substance was not sensitive to shock or friction, and was not explosive when heated under defined confinement.  Collectively, the results demonstrated that 1,2,4-triazole is non-explosive.

Justification for classification or non-classification