Assertion: ethane | /r/ObjectUse | used for petrochemical cracking
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Source sentences:
text: Liquefied petroleum gas (LPG) is a mixture of gaseous hydrocarbons, primarily propane and butane and their isomers, such as ethane, which are easily liquefied under pressure and are used for residential and commercial heating, auto-propane, industrial fuel applications and petrochemical cracking.