Generally, a substance that is in a gaseous state at normal temperature and pressure is called a gas. A wide variety of gases, classified by nature, can be divided into inorganic gases and organic gases; according to ancient classification, can be divided into constant gas and trace gases, classifie

The gaseous fuel can be directly used as a fuel for an internal combustion engine or the like, and can also be used as a raw material for industries such as synthetic ammonia, artificial petroleum, and organic synthesis.Gas fuel is a kind of high-quality, high-efficiency and clean fuel. Its ignition

(1) OxygenThe molecular formula of oxygen is O2. It is a strong oxidant and combustion improver. When high-concentration oxygen encounters oil, it will undergo a strong oxidation reaction, generate high temperature, and even burn and explode. Therefore, it is listed as a Class B fire hazardous subst

Welding Gases, a gas industry term, has been rapidly developed due to its advantages of good welding quality, high efficiency, and easy automation. The welding shielding gas can be a unit gas or a binary or ternary mixture. The purpose of using welding protective gas is to improve the quality of the