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| CAS No.: | 17014-71-0 |
|---|---|
| Name: | potassium peroxide |
| Molecular Structure: | |
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| Formula: | K2O2 |
| Molecular Weight: | 110.2 |
| Synonyms: | Dipotassiumperoxide; Potassium oxide (K2(O2)); Potassium peroxide |
| Density: | >1 g/cm3 |
| Melting Point: | 490°C |
| Boiling Point: | 150.2°C at 760 mmHg |
| Solubility: | decomposed by H2O [HAW93] |
| Hazard Symbols: | Dangerous fire and explosion risk in contact with organic materials, strong oxidizing agent. Irritant to skin and tissue. |
| Safety: | Dangerous fire hazard by spontaneous chemical reaction. It is a very powerful oxidizer. Fires of this material should be handled like sodium 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, INORGANIC. |
| PSA: | 46.12000 |
| LogP: | -0.23760 |
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Chemistry
Melting Point: 490°C
Molecular Formula: K2O2
Molecular Weight: 110.2
Appearance: A yellow granular solid
IUPAC Name: Dipotassium peroxide
Enthalpy of Vaporization: 45.09 kJ/mol
Boiling Point: 150.2 °C at 760 mmHg
Vapour Pressure: 1.48 mmHg at 25°C
Air & Water Reactions: Reacts exothermically with water (or moisture in the air) to give oxygen and a caustic solution, potassium hydroxide
Synonyms: Potassium peroxide ; Dipotassio peroxide ; Peroxydipotassium
Following is the molecular structure of Potassium peroxide (17014-71-0):
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Uses
Potassium peroxide (17014-71-0) is used as a bleach.
Production
Reactivity Profile: Potassium peroxide (17014-71-0) 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].
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Dangerous fire hazard by spontaneous chemical reaction. It is a very powerful oxidizer. Fires of this material should be handled like sodium 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.
Standards and Recommendations
DOT Classification: 5.1; Label: Oxidizer
Specification
Potassium peroxide (17014-71-0) is an inorganic compound with the molecular formula K2O2. It is formed as potassium reacts with oxygen in the air, along with potassium oxide (K2O) and potassium superoxide (KO2).