Flammable gases, including natural gases like methane, pure substances such as hydrogen, and vapors from volatile liquids like acetone, require careful handling. Understanding their working limits is crucial for safety. Always consult Safety Data Sheets for information on risks associated with these substances. This article covers the properties of various flammable gases: Ammonia, Acetylene, Butane, Carbon Monoxide, Hydrogen, Methane, Propane, Ethane, Ethylene, Silane, and Chlorine Trifluoride.