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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Flammability

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Administrative data

Link to relevant study record(s)

Description of key information

non flammable
no flammability on contact with water
no pyrophoric properties

no self-heating

Key value for chemical safety assessment

Flammability:
non flammable

Additional information

The substance Reaction mass of 2-(3,4-dimethyl-1H-pyrazol-1-yl)butanedioic acid and 2-(4,5-dimethyl-1H-pyrazol-1-yl)butanedioic acid is non-combustible on the basis of the test performed according to UN Test Procedure N.1 (33.2.1.4.1). Based on experience in handling and use and the chemical structure, flammability in contact with water and pyrophoric properties are not to be expected.

Justification for classification or non-classification

The available data on flammability of the test substance do not meet the criteria for classification according to Regulation (EC) 1272/2008 or Directive 67/548/EEC, and are therefore conclusive but not sufficient for classification:

No propagation of burning in a test performed according to UN Test Procedure N.1 (33.2.1.4.1).

Based on experience in handling and use and the chemical structure, flammability in contact with water and pyrophoric properties are not expected.