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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Link to relevant study record(s)

Description of key information

1-hexyl-1H-pyrazol-4,5-diamine hemisulfate is non-flammable.

Key value for chemical safety assessment

non flammable

Additional information

The flammability of 1-hexyl-1H-pyrazol-4,5-diamine hemisulfate was determined accordind to the EU Method A.10 (Flammability (Solids)) and following the GLP.

Using a mold, a sample of the test material was formed into an unbroken line about 250 mm long by 20 mm wide by 10 mm high on a non-combustible, non-porous and low heat conducting surface. The flame from a Bunsen burner was applied to one end of the powder strip for two minutes.The solid test material, C6 Pyrazole Hemisulfate, did not ignite or propagate combustion.

Based on this test, 1-hexyl-1H-pyrazol-4,5-diamine hemisulfate is non-flammable.

Justification for classification or non-classification