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Hydrogen peroxide (H₂O₂) is a chemical compound with the formula H₂O₂. It’s a pale blue liquid with a slightly higher viscosity than pure water. It is used as an oxidant, bleaching agent, and antiseptic in a weak solution (3–6% by weight) in water and higher concentrations for industrial use. The most basic peroxide, hydrogen, is a reactive oxygen species with a single oxygen–oxygen link. When exposed to light, it decomposes slowly but quickly when organic or reactive substances are present. To keep light out, it’s usually kept in a dark bottle with a stabilizer in a mildly acidic solution. Hydrogen peroxide, which is found in biological systems, is also found in the human body. Peroxidases are enzymes that either use or degrade hydrogen peroxide.
Reactions
Hydrogen peroxide decomposes to form water and oxygen with a ΔHo of –2884.5 kJ/kg and a ΔS of 70.5 J:
2 H₂O₂ → 2 H₂O + O₂
When heated or in the presence of various chemicals, particularly salts of metals such as iron, copper, manganese, nickel, or chromium, hydrogen peroxide decomposes into water and oxygen. It reacts with various chemicals to form crystalline solids that can be used as mild oxidizing agents; the most well-known is sodium perborate (NaBO₂H₂O₂H₂O or NaBO3 4H₂O), which is found in laundry detergents and chlorine-free bleach. When hydrogen peroxide reacts with organic molecules, it produces hydroperoxides or peroxides, used to start polymerisation reactions. Hydrogen peroxide oxidizes other chemicals in most reactions, though it is oxidized by a few compounds, such as potassium permanganate.
Hydrogen Peroxide’s Properties
Physical Properties:
Hydrogen peroxide is a colorless (very pale blue) liquid in its purest form.
It has a melting point of 272.4°C and a boiling point of 423°C (extrapolated).
It forms hydrates and is miscible with water at all concentrations.
Chemical Properties:
Hydrogen peroxide acts as an oxidizing and reducing agent in acidic and basic media.
Hydrogen Peroxide On Wounds
Hydrogen peroxide (H₂O₂) is a topical antiseptic that kills bacteria by causing an oxidation burst and producing local oxygen. H₂O₂ is a reactive biochemical molecule produced by various cells that influences biological behavior via various mechanisms, including changes in membrane potential, the generation of new molecules, and changes in intracellular redox balance, all of which result in the activation or inactivation of various signaling transduction pathways.
Despite popular belief that H₂O₂ damages tissue due to its high oxidative property, a proper amount of H₂O₂ is regarded as a critical prerequisite for normal wound healing. H₂O₂‘s current clinical use is still limited to removing microbial contamination and occasionally hemostasis. However, a better understanding of H₂O₂‘s sterilization ability and cell behavior regulatory function within wounds will improve the potential to augment and manipulate healing exogenously.
Maintanation of Hydrogen Peroxide
When hydrogen peroxide is exposed to sunlight, it decomposes, alkali metal residues catalyze the process. As a result, H₂O₂ is kept in glass or plastic containers that are dark and wax-lined. As a result, it should be kept away from dust particles, as dust can cause this compound to decompose explosively.
USES OF HYDROGEN PEROXIDE
Hydrogen peroxide has a variety of applications. Like:
- Bleaching: In the textile and paper industries, hydrogen peroxide is used as a bleaching agent. According to data, nearly 60% of the world’s hydrogen peroxide production is used for pulp and paper bleaching.
- In everyday life, hydrogen peroxide can be used as hair bleach and a mild disinfectant.
- Detergents: One of this compound’s most important industrial applications is the production of sodium percarbonate and sodium perborate. They are mild bleaches used in laundry detergents. Sodium percarbonate is a chemical found in products such as OxiClean and Tide laundry detergent. When dissolved in water, it emits hydrogen peroxide and sodium carbonate.
- Organic compound synthesis: Hydrogen peroxide is used to synthesize several organic peroxides, the most common of which is dibenzoyl peroxide. It is employed in polymerisations as a flour bleaching agent and acne treatment.
Hydrogen peroxide has also been used to remove organic impurities in certain waste-water treatment processes.
- Hydrogen peroxide is used to sterilize various faces, including surgical instruments, and it can be used as a vapor (VHP) for room sterilization.
- Because it degrades to form water and oxygen, hydrogen peroxide is an environmentally safe alternative to chlorine-based bleaches. It is generally accepted as safe as an antimicrobial agent by the US Food and Drug Administration (FDA).
Hydrogen peroxide has been used for wound disinfection since time immemorial, partly because it is less expensive and more readily available than other antiseptics. However, it can inhibit healing and induce scarring because it destroys newly formed skin cells.
- Dermal exposure to dilute hydrogen peroxide solutions can cause skin bleaching or whitening.
- Hydrogen peroxide has a wide range of applications in the cosmetic industry, and it is found in most whitening toothpaste. To make homemade toothpaste, combine this compound with baking soda and salt.
This chemical is widely used in various industries of alternative medicine. Although there is no proper evidence of effectiveness, and in some cases, it may be life-threatening, the use of hydrogen peroxide can cure a variety of conditions, including emphysema, influenza, AIDS, and cancer.
In the rocket industry, hydrogen peroxide can be used as a fuel. A jet back is propelled by rocket-belt hydrogen peroxide propulsion systems.
- Horticulture: Some horticulturists and hydroponics users advocate using weak hydrogen peroxide in watering solutions.
- Structure of Hydrogen Peroxide
Hydrogen Peroxide H₂O₂ has an open book-shaped structure and is thus non-planar.
Conclusion
Hydrogen Peroxide is a vital chemical compound. In many cases, hydrogen peroxide has benefited society; it is used to treat drinking water, remove stains, manufacture pharmaceuticals and disinfectants in homes and hospitals. This brings us to the actual manufacturing processes for hydrogen peroxide.
