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How Hydrogen Peroxide Is Made
On the Preparation of Hydrogen Peroxide
Hydrogen peroxide is a chemical substance with a wide range of uses. The method of its preparation is quite well studied by the world.
In the past, to obtain hydrogen peroxide, barium peroxide was often used to react with dilute sulfuric acid. First take an appropriate amount of barium peroxide, put it in a clean vessel, and slowly inject dilute sulfuric acid. When the two meet, a precipitate of barium sulfate and a solution of hydrogen peroxide are produced. Barium sulfate is insoluble in water, and can be removed by filtration, leaving its clear liquid, which is the liquid of hydrogen peroxide. This is one of the ancient methods.
In today's world, the method of preparing hydrogen peroxide is mostly used for anthraquinone. Select an appropriate anthraquinone compound and dissolve it in an organic solvent to form a uniform liquid. Make this liquid contact with hydrogen under the action of a catalyst, and the anthraquinone gains hydrogen and becomes the corresponding hydroanthraquinone. Then, make the hydroanthraquinone meet with air or oxygen, lose hydrogen and return to anthraquinone, and generate hydrogen peroxide at the same time. In this process, the anthraquinone compound is recycled with little loss. The generated hydrogen peroxide can be separated and purified to obtain a pure product.
There is also an electrolysis method. The solution of ammonium bisulfate is used as the electrolyte, and an electric current is passed. At the anode, the hydrogen sulfate ion loses electrons and gradually converts to ammonium persulfate. Afterwards, hydrogen peroxide can be obtained by hydrolyzing the liquid of ammonium persulfate. This method requires delicate equipment and requires high energy consumption, but it is also one of the ways to produce hydrogen peroxide.
All these methods of preparation have their own advantages and disadvantages. Although the ancient method is simple, the separation of the product may be inconvenient; the anthraquinone method is efficient and the anthraquinone can be recycled, but the organic solvent may have safety concerns; although the electrolysis method requires energy consumption, it can produce a purer substance. Today's scholars are still exploring better methods of preparing hydrogen peroxide, hoping to obtain efficient, safe and economical methods to meet the needs of the world.
Hydrogen peroxide is a chemical substance with a wide range of uses. The method of its preparation is quite well studied by the world.
In the past, to obtain hydrogen peroxide, barium peroxide was often used to react with dilute sulfuric acid. First take an appropriate amount of barium peroxide, put it in a clean vessel, and slowly inject dilute sulfuric acid. When the two meet, a precipitate of barium sulfate and a solution of hydrogen peroxide are produced. Barium sulfate is insoluble in water, and can be removed by filtration, leaving its clear liquid, which is the liquid of hydrogen peroxide. This is one of the ancient methods.
In today's world, the method of preparing hydrogen peroxide is mostly used for anthraquinone. Select an appropriate anthraquinone compound and dissolve it in an organic solvent to form a uniform liquid. Make this liquid contact with hydrogen under the action of a catalyst, and the anthraquinone gains hydrogen and becomes the corresponding hydroanthraquinone. Then, make the hydroanthraquinone meet with air or oxygen, lose hydrogen and return to anthraquinone, and generate hydrogen peroxide at the same time. In this process, the anthraquinone compound is recycled with little loss. The generated hydrogen peroxide can be separated and purified to obtain a pure product.
There is also an electrolysis method. The solution of ammonium bisulfate is used as the electrolyte, and an electric current is passed. At the anode, the hydrogen sulfate ion loses electrons and gradually converts to ammonium persulfate. Afterwards, hydrogen peroxide can be obtained by hydrolyzing the liquid of ammonium persulfate. This method requires delicate equipment and requires high energy consumption, but it is also one of the ways to produce hydrogen peroxide.
All these methods of preparation have their own advantages and disadvantages. Although the ancient method is simple, the separation of the product may be inconvenient; the anthraquinone method is efficient and the anthraquinone can be recycled, but the organic solvent may have safety concerns; although the electrolysis method requires energy consumption, it can produce a purer substance. Today's scholars are still exploring better methods of preparing hydrogen peroxide, hoping to obtain efficient, safe and economical methods to meet the needs of the world.
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