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Usage

Uses

Used as an Oxidizing Agent:
Potassium peroxide is used as an oxidizing agent due to its ability to decompose in water and evolve oxygen. This property makes it useful in various chemical reactions and processes.
Used as a Bleaching Agent:
Potassium peroxide is used as a bleaching agent in various industries, such as textiles and paper manufacturing, due to its effective oxidizing properties.
Used in Oxygen-Generating Gas Masks:
Potassium peroxide is used in oxygen-generating gas masks as it can decompose and release oxygen when in contact with water or moisture, providing a source of breathable oxygen for the user.
Used in Textile Industry:
In the textile industry, potassium peroxide is used as a bleaching agent for whitening and brightening fabrics, as well as for removing impurities and stains.
Used in Paper Manufacturing:
In the paper manufacturing industry, potassium peroxide is used as a bleaching agent to whiten and brighten paper pulp, improving the quality and appearance of the final product.
Used in Water Treatment:
Potassium peroxide can be used in water treatment processes as an oxidizing agent to remove contaminants and impurities, ensuring clean and safe water supply.
Used in Medical Applications:
In medical applications, potassium peroxide can be used as an oxidizing agent for sterilization and disinfection purposes, helping to eliminate bacteria and other harmful microorganisms.

Preparation

Potassium peroxides have been prepared by carefully controlled oxidation of the metals with the exact amount of air or nitric oxide, but it is difficult to prepare the pure peroxides in this manner because of the ease with which the peroxides are oxidized to the superoxide. They can also be prepared by careful oxidation of liquid ammonia solutions of the metals, using the stoichiometric quantity of oxygen for peroxide formation. They can also be prepared by the thermal decomposition of the superoxides in vacuum; for example, potassium superoxide decomposes at about 400°C.

Air & Water Reactions

Reacts exothermically with water (or moisture in the air) to give oxygen and a caustic solution, potassium hydroxide [NFPA 491M] .

Reactivity Profile

potassium peroxide is a strong oxidizing agent. Reacts readily with reducing agents, including most organic compounds, to generate heat and products that may be gaseous (causing pressurization of closed containers). The products may themselves be capable of further reactions (such as combustion in the air). A quantity left on a piece of paper in the open air usually starts a fire in the paper spontaneously in a few minutes [Freeman].

Hazard

Dangerous fire and explosion risk in con- tact with organic materials, strong oxidizing agent. Irritant to skin and tissue.

Health Hazard

Inhalation causes respiratory irritation. Ingestion causes severe burns of mouth and stomach. Contact with eyes or skin causes irritation and caustic burns.

Fire Hazard

Behavior in Fire: Increases intensity of fire and can start fires when in contact with organic combustibles

Safety Profile

Dangerous fire hazard by spontaneous chemical reaction. It is a very powerful oxidzer. Fires of this material should be handled like sodurn peroxide fires. Moderate explosion hazard by spontaneous chemical reaction. Explodes on contact with water, forming H2O2 and KOH. Violent reactions with air, Sb, As, O2 , K. Vigorous reaction on contact with reducing materials. On contact with acid or acid fumes, it can emit toxic fumes. Incompatible with carbon, diselenium dichloride, ethanol, hydrocarbons, metals. When heated to decomposition it emits toxic fumes of K2O . See also PEROXIDES, E INORGANIC.

InChI:InChI=1/2K.O2/c;;1-2/q2*+1;-2