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Hydrogen Sulfide Production Methods

On the preparation of hydrogen sulfide
Hydrogen sulfide is also a chemical substance with a pungent odor, which is important for scientific research and industry. There are various ways to prepare it, as detailed below.

First, ferrous sulfide and dilute sulfuric acid are prepared. The two are combined, such as "Jing": "Ferrous sulfide reacts when it encounters dilute sulfuric acid." Its chemical reaction formula is: $FeS + H_ {2} SO_ {4} = FeSO_ {4} + H_ {2} S ↑ $. The method is simple and easy to implement, and is commonly used in laboratories. When ferrous sulfide and dilute sulfuric acid meet, hydrogen sulfide gas is immediately generated. If it is oily and raining, it is easy to operate, and the equipment requirements are not complicated, so it is widely used.

Second, the method of direct combination of sulfur and hydrogen. Sulfur melts at high temperature and converts into liquid. At this time, hydrogen gas is passed into it. Under the action of suitable temperature, pressure and catalyst, the two synthesize hydrogen sulfide. The book says: "The phase of sulfur and hydrogen combines to produce hydrogen sulfide." Its reaction formula is: $S + H_ {2}\ stackrel {high temperature, catalyst }{=\!=\!=} H_ {2} S $. However, this method requires specific reaction conditions. Under high temperature, the difficulty of operation is slightly increased. However, it may have important value in large-scale industrial production and can efficiently produce hydrogen sulfide.

Third, the decomposition of organic matter can also obtain hydrogen sulfide. Some sulfur-containing organic matter decomposes in an oxygen-deficient and high-temperature environment, and can escape hydrogen sulfide. This process is like the self-transformation of matter, conforming to its inherent nature, resulting in the generation of hydrogen sulfide. For example, in ancient alchemy, various things change, and there is a reason for it. Although this approach is more complicated, it may become one of the methods for preparing hydrogen sulfide in specific organic chemical production.

In summary, the production methods of hydrogen sulfide vary, each with its own advantages and disadvantages, either convenient for small-scale preparation in the laboratory or conducive to industrial large-scale production. They are all selected according to actual needs.