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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: data from handbook or collection of data
Principles of method if other than guideline:
public available peer reviewed source
GLP compliance:
not specified
lower explosion limit
3.16 % (not further specified)
upper explosion limit
15 % (not further specified)

no further data, public available peer reviewed source

Interpretation of results:
other: Category 1A (flammable gases)
based on GHS criteria and CLP (12. ATP)
Executive summary:

Extremely flammable, lower & upper explosion limits 3.16 & 15 %, respectively

Description of key information

extremely flammable gas;  lower & upper explosion limits 3.16 & 15 %, respectively

Key value for chemical safety assessment


Additional information

Justification for classification or non-classification

The available data on flammability of the test substance do meet the criteria for classification according to Regulation (EC) 1272/2008 as extremely flammable gas (Flam. Gas 1A). Based on experience in production or handling the substance is not pyrophoric gas.