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  • phosphorus

    phosphorus - WordReference English dictionary, questions, discussion and forums. of 'phosphorus' (n noun: Refers to person, place, thing, quality, etc.): npl plural noun: Noun always used in plural form--for example, jeans, scissors.: phosphori Ordinary phosphorus is a toxic flammable phosphorescent white solid; the red form is less

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  • Properties of Phosphorus

    The two most common allotropes are white phosphorus and red phosphorus. Another form, scarlet phosphorus, is obtained by allowing a solution of white phosphorus in carbon disulfide to evaporate in sunlight. Black phosphorus is obtained by heating white phosphorus under high pressures (about 12,000 standard atmospheres, or 1.2 gigapascals).

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  • bond

    Why does Nitrogen form N₂ (and not N₄) while but Phosphorus forms P₄ (and not P₂)? Ask Question Asked 6 years, 10 months ago. Active 3 years ago. Viewed 35k times 17 3 $begingroup$ $ce{N2}$ is a gas $ce{P4}$ is a solid $ce{N}$ and $ce{P}$ are in the same group in the periodic table

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  • The Structure, Chemical Formula, and Uses of Phosphorus

    But this required a supply of white phosphorus, which is comparatively hard to find. As a new method of forming phosphoric acid was discovered, this method fell out of fashion. Phosphorus pentoxide, which is the anhydride form of phosphoric acid (H 3 PO 4 ), has the empirical chemical formula P 2 O 5 .

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  • The product formed in the reaction of SOCl2 with white

    Solution: PLAN This problem is based on chemical properties of phosphorus.White phosphorus on reaction with thionyl chloride ( S O C l 2) produces phosphorus trichloride. P 4 ( s) + 8 S O C l 2 ( l) 4 P C l 3 ( l) + 4 S O 2 ( g) + 2 S 2 C l 2 ( g) But if amount of thionyl chloride ( S O C l 2) is in excess then it produces phosphorus pentachloride.

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  • Flaming phosphorus

    Feb 19, 2018The red allotrope of phosphorus is an amorphous polymer. It is significantly more stable at room temperature than the white form, which consists of tetrahedra of P 4 with each atom bonded to three others with a lone pair facing outwards. Valence shell electron pair repulsion (VSEPR) theory predicts bond angles of about 107, but the shape of

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  • List of Phosphate binders

    Phosphate binders are used to decrease the absorption of phosphate from food in the digestive tract. They are used when there is an abnormally high blood phosphate level (hyperphosphatemia) which can be caused by impaired renal phosphate excretion or increased extracellular fluid phosphate loads.Phosphate binders react with phosphate to form an insoluble compound, making it unable to be

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  • Phosphorus

    Phosphorus (atomic number 15, symbol P) is a non-metal with a monoclinic structure and 3 main allotropes - black, red, and white. It has 3 oxidation states - 5, 4, 3 and is a multivalent non-mental. The element occurs in the form of phosphates, as organophosphates, and in minerals. Because it is highly reactive, white phosphorus

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  • Phosphorus pentoxide

    Phosphorus pentoxide is a potent dehydrating agent as indicated by the exothermic nature of its hydrolysis: However, its utility for drying is limited somewhat by its tendency to form a protective viscous coating that inhibits further dehydration by unspent material. A granular form of P

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  • About Foods High in Phosphorus

    Looking Out for High Phosphorous Foods. Phosphorus is an important mineral. It works with calcium to help the body make strong bones and teeth. It also helps us grow, maintain, and repair cells. However, it's possible to get too much phosphorus when your kidneys aren't functioning properly. Normally, kidneys filter out excess phosphorus.

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  • ΔfH^o for white phosphorus has been taken to be zero

    The reference standard state of white phosphorus is taken despite the fact that this form not being the most stable allotrope but simply the most reproducible form of phosphorus. A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion. B.

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  • Phosphorus Allotropic Forms

    Black Phosphorus can be prepared from white phosphorus as follows: Of all the three allotropes, black phosphorus is the most stable. It has a layered structure and is a highly polymerized form of phosphorus. Fig. 6: The Layered Structure of Black Phosphorus. It is found in two forms, namely, alpha black phosphorus and beta black phosphorus.

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  • A first

    Jan 13, 2000Phosphorus has a number of allotropes in the solid state 11,12.White P consists of tetrahedral P 4 molecules, whereas black P is a layered structure; red

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  • Phosphorus

    Red phosphorus is used in safety matches, fireworks, smoke bombs and pesticides. Black phosphorus is also formed by heating white phosphorus, but a mercury catalyst and a seed crystal of black phosphorus are required. Black phosphorus is the least reactive form of phosphorus and has no significant commercial uses.

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  • SOLVED:A common form of elemental phosphorus is the white

    A common form of elemental phosphorus is the white phosphorus, where four mathrm{P} atoms are arranged in a tetrahedron. All four phosphorus atoms are equival

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  • 6 Things to Know About Phosphorus in Your Diet

    Apr 18, 2019Phosphorus found in animal foods is absorbed more easily than phosphorus found in plant foods. Phosphorus that has been added to food in the form of an additive or preservative (inorganic phosphorus) is found in foods such as fast foods, ready to eat foods, canned and bottled drinks, enhanced meats, and most processed foods.

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  • Phosphorus

    Nov 21, 2020Phosphorus is a chemical element with atomic number 15 which means there are 15 protons and 15 electrons in the atomic structure. The chemical symbol for Phosphorus is P . As an element, phosphorus exists in two major forms—white phosphorus and red phosphorus—but because it is highly reactive, phosphorus is never found as a free element on

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  • White phosphorus

    Structure, properties, spectra, suppliers and links for: White phosphorus, 12185-10-3, 62611-24-9, 100320-09-0.

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  • Image Intensifiers

    The White Phosphor tube uses a P-45 phosphor screen, which yields an alternate coloration closer to black and white imagery. This change in color has been reported to enhance overall object recognition while providing contrast sensitivity equivalent to green phosphor.

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  • LaALMT1 mediates malate release from phosphorus‐deficient

    Apr 02, 2020Under phosphorus (P) deficiency, Lupinus albus (white lupin) releases large amounts of organic acid anions from specialized root structures, so-called cluster or proteoid roots, to mobilize and acquire sparingly soluble phosphates from a restricted soil volume. The molecular mechanisms underlying this release and its regulation are, however, poorly understood.

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  • 10 Phosphorus Facts (P or Atomic Number 15)

    Sep 09, 2019The white form (sometimes called yellow phosphorus) resembles wax, the red and violet forms are noncrystalline solids, while the black allotrope resembles graphite in pencil lead. The pure element is reactive, so much so that the white form will ignite spontaneously in air. Phosphorus typically has an oxidation state of +3 or +5.

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  • Phosphorus Cycle Explanation

    A simple phosphorus cycle explanationPhosphorus is not found in the atmosphere. It is important for the production of ATP, DNA, and membrane.Phosphorus follo

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  • PHOSPHORUS, WHITE, DRY OR UNDER WATER OR IN SOLUTION

    WHITE PHOSPHORUS is reacts readily with most oxidizing agents. Often ignites on contact with air; storage under water prevents this reaction. Submersion in water stops the white phosphorus/air reaction which however usually resumes when the water is removed. Reacts violently with bromine trifluoride, even at 10C [Mellor 2:113. 1946-47].

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  • Two crystalline forms of white phosphorus

    Two crystalline forms of white phosphorus are known. Both forms contain P 4 molecules, but the molecules are packed together in different ways. The α form is always obtained when the liquid freezes. However, below -76.9C, the α form spontaneously converts to the β form: P 4 (s, α) → P 4 (s, β) b. Predict which form of phosphorus has

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  • White Phosphorous Can Be Safely Handled And Transported

    Jul 05, 2009White phosphorus is also infamous for its propensity to burst into flame. For this reason it is often used in military campaigns to create smokescreens to

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  • Allotropes_of_phosphorus

    White phosphorus is a yellow, waxy transparent solid. 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 odour of combustion of this form has a characteristic garlic smell, and samples are commonly

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  • 10 Phosphorus Facts (P or Atomic Number 15)

    Sep 09, 2019The white form (sometimes called yellow phosphorus) resembles wax, the red and violet forms are noncrystalline solids, while the black allotrope resembles graphite in pencil lead. The pure element is reactive, so much so that the white form will ignite spontaneously in air. Phosphorus

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  • How would you balance the reaction of white phosphorous (P

    Jul 26, 2016four atoms of phosphorus, #4 xx P# two atoms of oxygen, #2 xx O# The products' side contains . four atoms of phosphorus, #4 xx P# ten atoms of oxygen, #10 xx O# Notice that the atoms of phosphorus are already balanced, since you have four on each side of the chemical equation. The atoms of oxygen, on the other hand, are not balanced.

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  • What is the form of phosphorus?

    Oct 06, 2012Phosphorus is a solid. There are various forms, allotropes of phosphorus:-White phosphorus consisting of P4 molecules - most familiar form; Red phosphorus with chain structure

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  • Phosphorus, Chemical Element

    White phosphorus is the form that occurs most commonly at room temperatures. It is very reactive. It combines with oxygen so easily that it catches fire spontaneously (automatically). As a safety precaution, white phosphorus is stored under water in chemical laboratories.

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  • Dicalcium Phosphate Benefits, Side Effects and Dosage

    Aug 28, 2020Phosphate is a natural mineral and the product of oxygen and phosphorus combined. It helps your body form bones and teeth, cell membranes and DNA. The FDA recommends taking 1,250 milligrams of phosphorus every day . Many are able to consume that amount in the average American diet. Similar to calcium, vitamin D helps the body absorb phosphate.

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  • Indicators: Phosphorus

    Jul 07, 2021What is phosphorus? Phosphorus, like nitrogen, is a critical nutrient required for all life. The most common form of phosphorus used by biological organisms is phosphate (PO 4), which plays major roles in the formation of DNA, cellular energy, and cell membranes (and plant cell walls). Phosphorus is a common ingredient in commercial fertilizers.

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