As a colorless and odorless gas, hydrogen is difficult to be detected if it leaks, so it needs to be detected with the help of corresponding detection instruments to confirm whether hydrogen leaks. Generally speaking, hydrogen explodes because it is mixed with air. The degree of hydrogen explosion is related to the mixing ratio of hydrogen and oxygen. When it is below a certain range, hydrogen will not explode. When the concentration of hydrogen in the air is lower than a certain concentration or higher than a certain concentration, it will not explode even if it encounters a fire source.
Hydrogen is usually used for synthetic ammonia and methanol, as well as fuel. Hydrogen is insoluble in water and ethanol. Hydrogen is the least dense gas in the world. Hydrogen is chemically stable at room temperature, but it can react with many substances under the chemical conditions of ignition or heating. Among them, two molecules of hydrogen and one molecule of oxygen generate two molecules of water when ignited, which shows that the purity must be tested before igniting hydrogen. Hydrogen can also be burned in chlorine to produce hydrogen chloride. The burning flame is pale and will explode when there is light. Hydrogen and fluorine will explode even in the dark.
Hydrogen is also reducible. Even if some metal oxides are reduced, pure metals can be obtained. The chemical reaction between hydrogen and copper oxide under heating is called displacement reaction. Hydrogen can form compounds with many elements. Our common hydride, a compound formed by hydrogen and carbon, is what we often call organic matter. As an important industrial raw material, hydrogen is widely used in many aspects. Generally, the instruments used to detect hydrogen are: portable hydrogen detector, pumping hydrogen detector and online hydrogen detection alarm.