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Physical & Chemical properties

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Data on the physical and chemical properties of members of the Other Petroleum Gases category were obtained from proprietary data or peer reviewed handbooks which are deemed reliable for use.

The majority of data available were for susbtances which are representative of the composition of the streams included in this category, including methane, ethane, propane, butane and isobutane. As these substances have a similar structure to the streams, they can be predicted to have similar properties and environmental fate and so the data have been read across to the category members for which data were not available.