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Phosphorus, (IPAEng: ˈfɒsfərəs), is the chemical element that has the symbol P and atomic number 15. The name comes from the (meaning "light") and φόρος (meaning "bearer"). A multivalent nonmetal of the nitrogen group, phosphorus is commonly found in inorganic phosphate rocks.

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Wikipedia about phosphorus

Phosphorus, (IPAEng: ˈfɒsfərəs), is the chemical element that has the symbol P and atomic number 15. The name comes from the (meaning "light") and φόρος (meaning "bearer"). A multivalent nonmetal of the nitrogen group, phosphorus is commonly found in inorganic phosphate rocks.

Due to its high reactivity, phosphorus is never found as a free element in nature on Earth. One form of phosphorus (white phosphorus) emits a faint glow upon exposure to oxygen — hence its Greek derivation, Φωσφόρος meaning "light-bearer" (Latin Lucifer), the planet Venus as "Morning Star".

Phosphorus is a component of DNA and RNA, as well as ATP, and is an essential element for all living cells. The most important commercial use of phosphorus-based chemicals is the production of fertilizers.

Phosphorus compounds are also widely used in explosives, nerve agents, friction matches, fireworks, pesticides, toothpaste and detergents.

Allotropes

main: Allotropes of phosphorus Phosphorus is an excellent example of an element that exhibits allotropy, as its various allotropes have strikingly different properties.

The two most common allotropes are white phosphorus and red phosphorus. A third form, scarlet phosphorus, is obtained by allowing a solution of white phosphorus in carbon disulfide to evaporate in sunlight. A fourth allotrope, black phosphorus, is obtained by heating white phosphorus under very high pressures (12,000 atmospheres). In appearance, properties and structure it is very like graphite, being black and flaky, a conductor of electricity and has puckered sheets of linked atoms. Another allotrope is diphosphorus - which is highly reactive.

White%20phosphrous%20molecule.jpg

White phosphorus is a white, waxy transparent solid. This allotrope is thermodynamically unstable at normal condition and will gradually change to red phosphorus. This transformation, which is accelerated by light and heat, makes white phosphorus almost always contain some red phosphorus and therefore appear yellow. For this reason, it is also called yellow phosphorus. It glows greenish in the dark (when exposed to oxygen), is highly flammable and pyrophoric (self-igniting) upon contact with air as well as toxic (causing severe liver damage on ingestion). The incendiary bomb Napalm relies, among others, on this principle to spontaneously ignite. The odour of combustion of this form has a characteristic garlic smell, and samples are commonly coated with white "(di)phosphorus pentoxide", which consists of P4O10 tetrahedra with oxygen inserted between the phosphorus atoms and at their vertices. White phosphorus is insoluble in water but soluble in carbon disulfide.

Search results for Phosphorus

Phosphorus in Diet - MedlinePlus

Mineral that is present in every cell of the body. Describes its functions and dietary recommendations.www.nlm.nih.gov/medlineplus/ency/article/002424.htm

It's Elemental - The Element Phosphorus

The Element Phosphorus - Basic Physical and Historical Information ... White phosphorus is poisonous and can spontaneously ignite when it comes in contact with air. ...education.jlab.org/itselemental/ele015.html

Phosphorus

He called the mysterious substance phosphorus, taken directly from the Greek ... A normal person excretes about a gram of phosphorus daily. ...mysite.du.edu/~jcalvert/phys/phosphor.htm

Phosphorus - encyclopedia article - Citizendium

3 Allotropes of phosphorus. 4 Chemical bonding. 5 Phosphine, diphosphine and phosphonium salts ... 10 Isotopes of phosphorus. 11 Biological membranes and ...en.citizendium.org/wiki/Phosphorus

Water Resource Characterization DSS - Phosphorus

Watershed-Scale Decision Support System for managing Nonpoint Source Pollution ... Phosphorus plays a role in deoxyribonucleic acid (DNA), ribonucleic acid (RNA) ...www.water.ncsu.edu/watershedss/info/phos.html

Images found for Phosphorus

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News about Phosphorus

Poultry Farmers Concerned About Proposed Regulations

WBOC SalisburyWICOMICO COUNTY , Md. - New proposals to cleanup the Chesapeake Bay could mean changes for Maryland poultry growers. Maryland's Department of the Environment says poultry litter can contribute up to 5 percent of pollutants in the bay.http://www.wboc.com/Global/story.asp?S=8999713

Most bodies of water unhealthy for life

Asbury Park PressOf 846 bodies of water tested in New Jersey, only 27 percent met standards for healthy aquatic life.http://www.app.com/apps/pbcs.dll/article?AID=/20080914/NEWS0...

Florida Deal for Everglades May Help Big Sugar

The Sarasota Herald-TribuneFloridas plan to buy one of the states two large sugar enterprises may be a boon to the remaining sugar giant.http://www.heraldtribune.com/article/20080914/znyt01/8091403...

Council OKs bond for sewer plant

The SentinelCarlisle Borough voted to borrow $5 million Thursday night to fund upgrades to the wastewater treatment plant required under the Chesapeake Bay Initiative.http://cumberlink.com/articles/2008/09/14/news/local/doc48cb...

Trim Time

Westerly SunLandscaping expert Chris Koswaski says now is a good time to trim trees and bushes.http://www.thewesterlysun.com/articles/2008/09/14/front_porc...

News about Phosphorus

Rangers reunited

Charleston Post & CourierWhen that failed, he threw a white phosphorus grenade, but it didn't get far. "Fire and stuff was going everyplace," he said. "Bob was still soldiering away. Even though his arm was broke and an IV in the other one, he was still trying to shoot his ... http://www.charleston.net/news/2008/oct/11/rangers_reunited5...

City’s sewage fines to increase

Moultrie ObserverThe order was necessary due to permit violations that included unpermitted discharges, exceeding the weekly average for phosphorus and biochemical oxygen demand, and “failure to report/publish significant non-complying pretreatment industries.” ... http://www.moultrieobserver.com/local/local_story_282232104....

Truffles facts

Daily Telegraph1.Truffles grow in harmony with a host tree, enabling the tree to take in phosphorus while in return the truffle receives sugars enabling it to grow. 2. The ancient Greeks thought truffles were made when lightning hit damp soil 3. Truffles are ... http://www.telegraph.co.uk/news/uknews/3159385/Truffles-fact...

Alternative Flour Made from Chia Seeds Takes Center Stage for Celiac ...

ForbesEach serving delivers powerful antioxidants and vitamins, along with a full day's supply of omega-3 fatty acids, 9.4 grams of fiber and a wide variety of naturally occurring minerals like biotin, calcium, phosphorus, magnesium, manganese, copper ... http://www.forbes.com/prnewswire/feeds/prnewswire/2008/10/09...

Tech researchers focus on environmental issues

Collegiate TimesThe goal of the program and the research Knowlton and her colleagues are working on is to decrease the amount of phosphorus runoff from dairy cow manure, particularly into the Chesapeake Bay. Phosphorus runoff is an environmental problem because when ... http://www.collegiatetimes.com/stories/2008/10/07/tech_resea...

Search results for Phosphorus

phosphorus - Definitions from Dictionary.com

noun, plural -pho·ri Audio Help /-fəˌraɪ / Pronunciation Key - Show Spelled Pronunciation [-f uh-rahy] Pronunciation Key - Show IPA Pronunciation.http://dictionary.reference.com/search?q=phosphorus&r=66

Phosphorus

Phosphorus is an essential mineral that is required by every cell in the body for normal function (1). The majority of the phosphorus in the body is found as phosphate (PO4).http://www.oralchelation.com/ingred/phosphorus.htm

phosphorus - definition of phosphorus by the Free Online Dictionary ...

phos·pho·rus   (f s f r-s) n. 1. Symbol P A highly reactive, poisonous, nonmetallic element occurring naturally in phosphates, especially apatite, and existing in three ... http://www.thefreedictionary.com/Phosphorus

WebElements Periodic Table of the Elements | Phosphorus | Essential ...

This WebElements periodic table page contains Essential information for the element phosphorus ... Brief description: phosphorus is commonly misspelled "phosphorous". It is an ... http://www.webelements.com/phosphorus/

Phosphorus

Brief essay on the mineral with list of good food sources, suggested intake, and functions.http://www.mmeade.com/cheat/phosphorus.html
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Videos found for Phosphorus

INL Phosphorus Incident

INL Phosphorus IncidentINL Phosphorus IncidentVideo - Video

White Phosphorus Mission

White Phosphorus MissionMy gun doing a White Phosphorus MissionFlash - Video

XF-0002 Phosphorus -AFD2:Vic Viper-

XF-0002 Phosphorus -AFD2:Vic Viper-X-BOX"Air Force delta II" Secret Fighter "XF-0002 Phosphorus (VIC Viper)"Flash - Video

Phosphorus Combustion

Phosphorus CombustionIn this chemistry demonstration white phosphorus is reacted with oxygen while under water. Due to it's pyrophoric nature, combusting white phosphorus in air can be risky. Here the...Flash - Video

Bullish on Upstream Food Producers

Bullish on Upstream Food ProducersUpstream food producers, such as IJM Plantations, Fauji Fertilizer and United Phosphorus, are likely to do well in times of inflation, says Eddie Lau, regional head of small and...Windows Media - Video

Videos found for Phosphorus

Phosphorus-4.rm

Phosphorus-4.rmLecture 4realmedia: 0 MB w:320px - h:240px

Phosphorus-3.rm

Phosphorus-3.rmLecture 3realmedia: 0 MB w:320px - h:240px

Phosphorus-1.rm

Phosphorus-1.rmLecture 1realmedia: 0 MB w:320px - h:240px

Friendly Lawn

Friendly LawnAn ecologist shares earth-friendly lawn-care tips that don't use chemicals.wmv: 0 MB w:400px - h:300px

Fertilizer Numbers

Fertilizer NumbersPaul James makes sense of fertilizer bags.wmv: 0 MB w:400px - h:300px

Answers for Phosphorus

Vera Elizabeth Claythorn

Where does the phosphorus in miracle grow come from?

Vera Elizabeth ClaythornPhosphorus & phosphate are two different products. Phosphorus compounds are also widely used in explosives, nerve agents, friction matches, fireworks, pesticides, toothpaste, and detergents. All fer...
Luv2singnbling

What was the weight of the silicon when the phosphorus weighed only 12 kilograms?

Luv2singnblingWeight of Silicon/Weight of P = k = 400/100 = 4 x/12 = 4, so x=48 kgr
dear

Could you please help me find specific primers for phosphorus and potassium in soil?

dearhttp://www.westonaprice.org/basicnutrition/mineralprimer.html
Verushka

What is the electron geometry of Phosphorus Trifluoride?

Verushkaphosphorus trifluoride, PF3: Polar electron domain geometry is tetrahedral molecular geometry is trigonal pyramidal phosphorus pentafluroide, PF5: Nonpolar electron domain geometry is trigonal b...
Bobzilla

What is the percent yield of a reaction in which 262 g phosphorus trichloride reacts with excess water to form

BobzillaSo once you balance, you have PCl3 + 3H2O->H3PO3 + 3HCl. You than know the number of moles of PCl3 is 1.91, and therefore number of HCl is 5.724. Then, you find theoretical yield of HCl to be 208.7g. ...

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