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Hydrogen Selenide

The method of making hydrogen selenide
Between heaven and earth, everything can be studied and explored. There is now a method of making hydrogen selenide (Hydrogen Selenide), which is described in detail as follows.

Take an appropriate amount of selenium powder. This selenium is brittle and gray, and it is an important chemical substance. Place it in a clean reaction vessel, which needs to withstand a certain temperature and chemical reaction.

Then, add an appropriate amount of acid. The choice of acid should be based on its reaction characteristics and safety considerations. Generally speaking, an acid (Note: here, according to the specific reaction, a reasonable choice of acid, such as hydrochloric acid, etc.) is more suitable. When the acid is injected, it can be seen that the selenium powder and the acid are slowly blending. At first, it seems calm and calm, and after a while, the chemical reaction gradually begins.

During the reaction, there are bubbles in the container that rise slightly, which is the gas generated by the chemical reaction. As the reaction progresses, the bubbles gradually increase, and the mixture in the container also feels slightly hot, which is the appearance of exothermic reaction.

The hydrogen selenide gas generated is collected by a specific method because its density is higher than that of air. An inverted gas collector can be used. The bottle mouth is connected to the reactor, and the connection needs to be well sealed to prevent the gas from escaping. In this way, the hydrogen selenide gas gradually gathers in the gas collector due to its own gravity.

During the collection process, it is necessary to operate with caution, because hydrogen selenide gas is toxic and irritating. The operator, in front of the protective equipment, works in a well-ventilated place to prevent the gas from endangering the human body. In this way, a relatively pure hydrogen selenide gas can be obtained. The preparation process needs to be carefully controlled, and all links are closely interlocked to obtain the required hydrogen selenide smoothly.