| Chemical Composition | Primarily methane (CH₄) with small amounts of ethane, propane, and other hydrocarbons |
| Methane Content | 85% - 99% |
| Density | 430 - 470 kg/m³ (liquid form) |
| Boiling Point | -162°C (-260°F) |
| Energy Content | 45 - 50 MJ/kg |
| Calorific Value | 36 - 38 MJ/m³ (net) |
| Cryogenic Temperature | Stored and transported at -160°C to -162°C |
| Vapor Pressure | Near atmospheric pressure at boiling point |
| Flammability Range | 5% - 15% in air |
| Expansion Ratio | 1:600 (liquid to gas) |
| Purity | Typically > 90% methane |
| Odor | Odorless in its natural state |
| Color | Colorless |
| Corrosiveness | Non-corrosive |