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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

flammable gases
Type of information:
experimental study
Adequacy of study:
key study
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
EU Method A.11 (Flammability (Gases))
GLP compliance:
yes (incl. QA statement)
Key result
lower explosion limit
Remarks on result:
no flammable range with air at 20°C and 101.3 kPa
Key result
upper explosion limit
Remarks on result:
no flammable range with air at 20°C and 101.3 kPa
Interpretation of results:
GHS criteria not met
Under the tested conditions, HFO-1234ze is non-flammable.

Description of key information

Based on the results of the test it is concluded that the substance is not a flammable gas. The test substance does not contain groups that might lead to ignition in contact with air. Moreover the test substance was handled under normal laboratory conditions which demonstrated that the test substance does not ignite in contact with air.

Key value for chemical safety assessment

not classified

Additional information

Justification for classification or non-classification

Based on the available information, classification on flammability is not warranted in accordance with EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation No. (EC) 1272/2008.