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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Flammability data were available for the Petroleum gases (ethane, methane, propane, butane). The maximum range of lower and upper explosion limits for the category ranged from 5-15%.

Key value for chemical safety assessment

extremely flammable

Additional information

Measured data were available for the members of the Petroleum gases from peer reviewed handbook data (CRC 2008). No information on the method used was reported in the handbook. However, this is a peer reviewed handbook and so can be considered reliable and suitable for use as the key study for this endpoint. The maxium range of lower and upper explosion limits of the Petroleum gases was 5 - 15 for methane%.

Justification for classification or non-classification

The lower and upper explosion limits are are 2.1- 15%.This data would result in a classification of the Petroleum gases as category 1 flammable gas and the hazard statement 'extremely flammable gas'.