I hydrates are CO in carbon dioxide clathrate and CH in methane clathrate. With ice, argon forms a clathrate hydrate. These inhibitors chemically retard the formation of clathrate hydrates. THF is water-miscible and can form solid clathrate hydrate structures with water at low temperatures. An important example is methane hydrate (also known as gas hydrate, methane clathrate, etc.). Methane extracted from methane clathrate is, therefore, a candidate for future fuels. A cubic metre of solid clathrate expands to 164 cubic metres of methane. It is topologically equivalent to the empty structure of sII clathrate hydrates. The formation and decomposition of clathrate hydrates are first order phase transitions, not chemical reactions. LaLiTiOHe is a porous lithium ion conduction perovskite that can contain helium like a clathrate. The argon water clathrate is described in the Aqueous argon section. Traditionally clathrate compounds refer to polymeric hosts containing molecular guests. Intercalation compounds are not 3-dimensional, unlike clathrate compounds. In clathrate structures, gases are enclosed in an icy cage and look like packed snow.