temperature and pressure. It is mainly used as an insulating gas, plasma etching agent, and high dielectric strength coolant.

It's the simplest borane you can isolate. Diborane gas is a colorless gas at room temperature. It forms an explosive mixture with air and spontaneously ignites in humid air. It is highly toxic.

Geh4 is a colorless, highly toxic, flammable and noncorrosive gas. The thermal stability of germanane is poor, the autocatalysis of germanane is strong, once the decomposition formed metal covering film, it will be rapidly decomposed, so the decomposition explosion risk is very high.

It is an inorganic compound with the formula TiCl4. Titanium tetrachloride is an important intermediate in the production of titanium and its compounds. At room temperature, titanium tetrachloride is a colorless liquid and smokes in air to form a mixture of titanium dioxide solids and hydrochloric acid droplets.

It is usually a gaseous state, but is usually compressed into a liquid state and transported. After crude oil or natural gas treatment, propane can be obtained from the finished oil. Propane is commonly used as fuel for engines, barbecue food and home heating systems.

Methane is the simplest hydrocarbon. Widely exist in natural gas, biogas, coal mine pit gas, is a high quality gas fuel, is also an important raw material for manufacturing syngas and many chemical products.

Trifluoromethane, also known as trifluoromethane, is a colorless, odorless, non-conductive gas that is an ideal substitute for halogens.

Is colorless, odorless, tasteless, toxic gas, insoluble in water, melting point -199 ° C, boiling point -191.5 ° C. Under the standard condition, the gas density is L.25g /L, which is very different from the air density (1.293g/L under the standard condition), which is also one of the factors prone to gas poisoning. It is a neutral gas.

It is an inorganic compound, soluble in water, soluble in alcohols, petroleum solvents and crude oil. Under standard conditions, it is a flammable acid gas, colorless, at low concentrations, it smells of rotten eggs, and at very low concentrations, it smells of sulfur and is highly toxic.

A man-made radioactive element, element symbol No, atomic number 102, valence +2, +3(stable valence), relative atomic mass (longest half-life isotope) 259, actinide

Insoluble in water. It's a halogenated hydrocarbon and it can be considered either a halogenated hydrocarbon, a halogenated methane, a perflu- orocarbon, or it can be considered an inorganic compound. Mainly used in various integrated circuit plasma etching process, also used as laser gas and refrigerant.

ethane The second member of the alkane family, the simplest hydrocarbon with carbon-carbon single bonds. Molecular formula C2H6. The content of ethane in some natural gas is 5%~10%, second only to methane; And exists in a dissolved state in petroleum.