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  • Hydrogen Peroxide and Bleach Chemical Reaction

Hydrogen Peroxide and Bleach Chemical Reaction

The chemical reaction between hydrogen peroxide and bleach
The change of matter in the world is based on the principle of chemistry. Today, the chemical reaction between hydrogen peroxide ($H_2O_2 $) and bleach is worth exploring.

Hydrogen peroxide has a unique molecular structure and is oxidizing. In many reactions, its oxidation is often the key characteristic. There are many types of bleaches, but many contain strong oxidizing ingredients, such as hypochlorite.

When hydrogen peroxide meets a bleach containing hypochlorite, the chemical reaction pathway is complicated. Hypochlorite is hydrolyzed in solution to form hypochlorous acid ($HClO $). Hypochlorous acid is highly oxidizing, while hydrogen peroxide is also oxidizing. However, the oxidation state of the two is different, and a redox reaction can occur. The reaction formula is roughly as follows: $HClO + H_2O_2\ longrightarrow O_2\ uparrow + HCl + H_2O $.

In this reaction, the valence state of oxygen in hydrogen peroxide changes. Oxygen in hydrogen peroxide is -1 valent, and some oxygen elements lose electrons. The valence increases and is oxidized to oxygen. In hypochlorous acid, the valence of chlorine is reduced and reduced to hydrogen chloride. The progress of this reaction is not only related to the concentration of the reactants, but also affected by the pH of the environment.

If the solution is acidic, the reaction rate may be accelerated. The acidic environment can promote the formation of hypochlorous acid, enhance its oxidation, and then accelerate the reaction with hydrogen peroxide. If the solution is alkaline, the reaction rate may slow down, and the reaction product may be different. Due to alkaline conditions, the stability of hydrogen peroxide is slightly increased, and the hydrolysis equilibrium of hypochlorite moves, affecting the reaction process.

The chemical reaction between hydrogen peroxide and bleach should be treated with caution in practical applications. If the two are used improperly, it may cause danger. If mixed in a large amount in a closed space, the pressure of the oxygen or gas produced will increase, and there is a risk of explosion. Therefore, in industrial production, daily life cleaning applications and other scenarios, it is necessary to know the reaction principle in detail and operate it in a standardized manner in order to safely utilize its chemical properties and achieve the desired effect.