Knowra White phosphorus White phosphorus White phosphorus is a soft, waxy allotrope of phosphorus whose P₄ molecules glow faintly in air and can ignite spontaneously at room temperature. It is highly reactive and extremely toxic.
Phosphorus allotropes : Distinct structural forms of phosphorus with different physical and chemical properties. White phosphorus is one of phosphorus’s allotropes, distinguished by its molecular structure and high reactivity.
Phosphoric acid : An inorganic acid with formula H₃PO₄, used in fertilizers, food processing, and chemical manufacture. White phosphorus can be oxidized and processed into phosphoric acid, a major phosphorus chemical.
White phosphorus burns : Severe chemical and thermal injuries caused when burning white phosphorus contacts tissue. Particles can keep burning in air and cause deep, painful tissue damage.
Phosphorus : A reactive chemical element with atomic number 15 that occurs in several allotropes and phosphate compounds. White phosphorus is an elemental form of phosphorus, not a phosphorus compound.
P₄ molecule : A tetrahedral molecule containing four phosphorus atoms bonded to one another. White phosphorus consists of P₄ molecules whose strained bonds contribute to its reactivity.
Phosphate fertilizers : Fertilizers that supply plants with phosphorus in forms they can absorb. White phosphorus has served as a starting material in industrial routes to fertilizer phosphates.
Phosphorus poisoning : Illness caused by exposure to toxic phosphorus compounds or elemental phosphorus. White phosphorus can be absorbed through ingestion or damaged skin and harm multiple organs.
Allotropy : The ability of an element to exist in different structural forms in the same physical state. Allotropy accounts for the marked differences between white, red, and other forms of phosphorus.
Chemiluminescence : The emission of light during a chemical reaction without substantial heating. Slow oxidation at the surface produces the faint glow associated with white phosphorus.
White phosphorus munitions : Military devices that disperse burning white phosphorus for smoke, illumination, or incendiary effects. These munitions exploit its rapid ignition and dense smoke, while raising serious safety and legal concerns.
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