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Phosphorus

Phosphorus is a chemical element; it has symbol P and atomic number 15. All elemental forms of phosphorus are highly reactive and are therefore never found in nature. Elemental phosphorus can be prepared artificially, the two most common allotropes being white phosphorus and red phosphorus. With .mw-parser-output…

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31P
100%
32P
trace
33P
trace
Allotropes
white, red, violet, black and others (see Allotropes of phosphorus)
Appearance
white, red and violet are waxy, black is metallic-looking
at T (K)
279 · 455

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Overview

History

Characteristics

Biological role

Phosphorus cycle

Production

Applications

Hazards

General sources

  • Doi Doi (identifier)
  • ISBN ISBN (identifier)

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Phosphorus

Nodes364
Edges363
Triples338
Avg. degree1.99
Density0.005495
Components1

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Phosphorus

Top relations

related to General sources · 54
Phosphorus → ACS Symposium Series, American Chemical Society, An Interdisciplinary Approach, Apple Academic Press, Applications, Astrobiology, Chemistry, Christopher, Classics, Corbridge, CRC Press, Critical Care, DC, Dhupa, Elizabeth, Enrique, Francois, Frank, Fundamentals, Hamilton
related to Nutrition · 28
Phosphorus → According, AI, As, Authority, Average Requirement, Collectively, Dietary Reference Intake, Dietary Reference Values, EAR, EARs, EFSA, For, Generally, In, Institute, IOM, Medicine, Population Reference Intake, PRI, RDA
related to Reserves · 23
Phosphorus → Algeria, Australia, Before, Brazil, China, Earth, Earth's, Egypt, Estimates, Extensive, Finland, Hence, However, Mining, Morocco, Norway, Reserves, Saudi Arabia, South Africa, Syria
related to history · 22
Phosphorus → Ancient Greek, Boyle, Brand, By, Dresden, Europe, Greek, Hamburg, He, Hennig Brand, In, Johann Daniel Kraft, Johann Kunckel, Kraft, Latin, London, Phōsphoros, Robert Boyle, Sweden, The
related to Processing · 15
Phosphorus → About, Annually, Calcium, Florida, For, In, Most, Mt, North Africa, P4, Phosphoric, Presently, SiO2, The, The P4
related to Allotropes · 14
Phosphorus → At, Commonly, It, Many, N2, P-P, P2, P4, Structurally, The, The P4, This, When, White
related to Phosphorus cycle · 13
Phosphorus → Artificial, Ca, CaSO4, Even, Fertiliser, H2PO4, Heavy, Most, Natural, P2O5, Some, That, Therefore
related to Natural occurrence · 11
Phosphorus → AFGL, ALMA, Cassiopeia, Earth, Earth's, In, Inorganic, It, Milky Way, ROSINA, The
related to Cells · 10
Phosphorus → ATP, Cellular, DNA, Every, Inorganic, Living, OH, Phospholipids, PO3, RNA
related to Passive exposure · 8
Phosphorus → Chronic, From, Health, Health Administration, In, National Institute, Occupational Safety, United States

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Important terminology

phosphate white also used compounds production rock form red acid known use phosphoric states produced forms oxidation matches process calcium

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Phosphorus31P100%1.00infobox
Phosphorus32Ptrace1.00infobox
Phosphorus33Ptrace1.00infobox
PhosphorusAllotropeswhite, red, violet, black and others (see Allotropes of phosphorus)1.00infobox
PhosphorusAppearancewhite, red and violet are waxy, black is metallic-looking1.00infobox
Phosphorusat T (K)2791.00infobox
Phosphorusat T (K)4551.00infobox
PhosphorusAtomic number (Z)151.00infobox
PhosphorusBlockp-block1.00infobox
PhosphorusBoiling pointwhite: 553.7 K ​(280.5 °C, ​536.9 °F)1.00infobox
PhosphorusBulk moduluswhite: 5 GPa red: 11 GPa1.00infobox
PhosphorusCAS Number7723-14-0 (red) 12185-10-3 (white)1.00infobox
PhosphorusCovalent radius107±3 pm1.00infobox
PhosphorusCrystal structureα-white: ​body-centred cubic (bcc) (cI232)1.00infobox
PhosphorusCrystal structureblack: ​orthorhombic (oS8)1.00infobox
PhosphorusDensity (near r.t.)white: 1.823 g/cm3 red: ≈2.2–2.34 g/cm3 violet: 2.36 g/cm3 black: 2.69 g/cm31.00infobox
PhosphorusDiscoveryHennig Brand (1669)1.00infobox
PhosphorusElectron configuration[Ne] 3s2 3p31.00infobox
PhosphorusElectronegativityPauling scale: 2.191.00infobox
PhosphorusElectrons per shell2, 8, 51.00infobox
PhosphorusGroupgroup 15 (pnictogens)1.00infobox
PhosphorusHeat of fusionwhite: 0.66 kJ/mol1.00infobox
PhosphorusHeat of vaporisationwhite: 51.9 kJ/mol1.00infobox
Phosphorusin the Earth's crust5.2 (silicon = 100)1.00infobox
PhosphorusIonisation energies1st: 1011.8 kJ/mol1.00infobox
PhosphorusIonisation energies2nd: 1907 kJ/mol1.00infobox
PhosphorusIonisation energies3rd: 2914.1 kJ/mol1.00infobox
PhosphorusIonisation energies(more)1.00infobox
PhosphorusLattice constanta = 1.869 nm (at 20 °C)1.00infobox
PhosphorusLattice constantsa = 0.33137 nm b = 1.0477 nm c = 0.43755 nm (at 20 °C)1.00infobox

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