phosphorus + oxygen gives phosphorus pentoxide

• Oxide - Oxide - Oxides of phosphorus: Phosphorus forms two common oxides, phosphorus(III) oxide (or tetraphosphorus hexoxide), P4O6, and phosphorus(V) oxide (or tetraphosphorus decaoxide), P4O10. As a new method of forming phosphoric acid was discovered, this method fell out of fashion. Your IP: 145.239.75.187 Option a 2 phosphorus and 5 oxygen. - 3203791 ... •Phosphorus burns in oxygen to form Phosphorus pentoxide . Give the mass in grams of diphosphorus pentoxide that contains 2.0 x 10^(24) oxygen atoms. 2005-06-23. [1913 Webster] … Even though a single molecule of the compound has a molecular formula of P4O10, it is s… The technical method production phosphoric acid. It is a phosphorus oxoanion and a divalent inorganic anion. The empirical formula for Phosphorous pentoxide is P2O5. [1][5] The remaining polymorph is a glass or amorphous form; it can be made by fusing any of the others. When brought into contact with water under various conditions phosphorus pentoxide forms one or more of differently hydrated acids. Chemistry Phosphorus pentachloride decomposes according to the chemical equation PCl5(g) ⇌ PCl3(g) + Cl2(g) A 0.304 mol sample of PCl5(g) is injected into an empty 4.75 L reaction vessel held at 250 °C. Phosphorus Pentoxide 1.2. 2020-12-26. P 4 O 10 is prepared by burning tetraphosphorus with sufficient supply of oxygen:. P 2 O 3 +3H 2 O ® 2H 3 PO 3 . Its chemical structure can be written as below, in the common representations used for organic molecules. The odour of combustion of this form has a characteristic garlic smell, and samples are commonly coated with white "phosphorus pentoxide", which consists of tetrahedra with oxygen inserted between the phosphorus atoms and at their vertices. Phosphorus pentoxide is a chemical compound with molecular formula P4O10 (with its common name derived from its empirical formula, P2O5). It is generally found as a dimer of P2O5 that’s why it is known as phosphorous pentoxide. Phosphorus(III) oxide is a white crystalline solid that smells like garlic and has a poisonous vapour. A balanced chemical reaction gives the mole ratios between reactants and products. Answer to: Phosphorus reacts with oxygen gas to produce diphosphoroous pentoxide. Other Phosphorus Oxides 1.3. Chemistry Chemical Reactions Chemical Equations. P 2 O 5 (or P 4 O 10) can be prepared by burning elemental P 4 (tetra-phosphorus) in an environment containing a sufficient amount of oxygen. 4P(s) + 502(g) → 2P205(s) How Many Grams Of P2O5 Are Formed When 8.33 G Of Phosphorus Reacts With Excess Oxygen? This compound is a source of pure phosphoric acid. Phosphorus burns in oxygen to form Phosphorus pentoxide balance is equation. Phosphorus trioxide — Phosphorus trioxide … Wikipedia. supply of air. However, … Tidwell, Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. The article contains sections titled: 1. Phosphorus pentoxide is highly hygroscopic, so it will draw water out of the nearby environment and react to form phosphoric acid. The "Onodera reagent", a solution of P4O10 in DMSO, is employed for the oxidation of alcohols. Its density is 2.30 g/cm3. P4O10 is prepared by burning tetraphosphorus with sufficient supply of oxygen: For most of the 20th century, phosphorus pentoxide was used to provide a supply of concentrated pure phosphoric acid. P 2 O 5 + 3H 2 O → 2H 3 PO 4 [ Check the balance ] Phosphorus pentoxide react with water to produce phosphoric acid. It reacts with cold water, gives phosphorus acid. This oxide presents 4 known structures. The two phosphorus atoms are in the +3 and +5 oxidation states, respectively. Formula and structure: Phosphorus pentoxide chemical formula is P 2 O 5 and its molar mass is 141.94 g/mol, however it is also found as P 4 O 10 with a molar mass of 283.886 g/mol. 4P(s)+5O2(g) 2P2O5(s)4P(s)+5O2(g) 2P2O5(s) How many grams of P2O5P2O5 are formed when 4.71 g 4.71 g of phosphorus reacts with excess oxygen? • Phosphorus pentachloride — Phosphorus pentachloride … Wikipedia. cit. Explanation: Phosphorous pentoxide is having molecular formula as. Alternatively, when combined with a carboxylic acid, the result is the corresponding anhydride:[9]. Performance & security by Cloudflare, Please complete the security check to access. Isohypophosphoric acid is a structural isomer of hypophosphoric acid in which one phosphorus has a hydrogen directedly bonded to it and that phosphorus atom is linked to the other one by an oxygen bridge to give a phosphorous acid/phosphoric acid mixed anhydride. Oxyhalides of phosphorus are also produced when the pentoxide is heated with fluorides or chlorides of the alkali and alkaline earth metals; thus POF3 is produced with calcium fluoride and POCl3 with sodium chloride. The indicated coproduct P4O9(OH)2 is an idealized formula for undefined products resulting from the hydration of P4O10. Phosphorus pentoxide crystallizes in at least four forms or polymorphs. Show The Unit Analysis Used For The Calculation By Placing The Correct Components Into The Unit-factor Slots. It boils at 423 °C under atmospheric pressure; if heated more rapidly it can sublimate. 2P 2 O 3 + 6H 2 O ® PH 3 ­ + 3H 3 PO 4 . Consistent with its strong desiccating power, P4O10 is used in organic synthesis for dehydration. [10] This reaction is reminiscent of the Swern oxidation. The most studied is the P4O10 forming a hexagonal lattice or cage. [7] The dehydration of phosphoric acid to give phosphorus pentoxide is not possible as on heating metaphosphoric acid will boil without losing all its water. This white crystalline solid is the anhydride of phosphoric acid. Question: Phosphorus Reacts With Oxygen To Form Diphosphorus Pentoxide, P,05. In summary, phosphorus pentoxide is an anhydride covalent compound that is formed via the combustion of elemental phosphorus and oxygen. Luer, B.; Jansen, M. "Crystal Structure Refinement of Tetraphosphorus Nonaoxide, P, https://en.wikipedia.org/w/index.php?title=Phosphorus_pentoxide&oldid=993721898, Chemical articles with multiple compound IDs, Multiple chemicals in an infobox that need indexing, Chemical articles with multiple CAS registry numbers, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, This page was last edited on 12 December 2020, at 03:26. Phosphorus pentoxide is normally used an industrial desiccant and plays a role as an intermediate reactant to turn acid into their anhydride counterparts. the appropriate equation for this reaction is :- ... sonarika05 can you give me your whatsapp no. Both oxides have a structure based on the tetrahedral structure of elemental white phosphorus. You may need to download version 2.0 now from the Chrome Web Store. Phosphorus will react with oxygen to form diphosphorus pentoxide, P205. The most familiar one, a metastable form[1] (shown in the figure), comprises molecules of P4O10. hope this will help you. [11], Phosphorus pentoxide itself is not flammable. The reaction is : P + O2 -> P2O5 Answer (1 of 5): The chemical annotation for phosphorus is P, whilst for oxygen it is O. …phosphorus is burned to form phosphorus pentoxide, P 4 O 10. [12], InChI=1S/P6o5 Bishnupriya03 Bishnupriya03 Answer: P4+5O2 gives P2O5. (Chem.) Dates: Modify . Preparation. 2. A granular form of P4O10 is used in desiccators. Another way to prevent getting this page in the future is to use Privacy Pass. What is the chemical equation for this reaction: Solid phosphorous, oxygen gas, and heat yield solid diphosphorous pentoxide? Note: If you answer any part of this question incorrectly, a single red X will appear indicating that one or more of … Examples: HNO3 is converted to N2O5;  H2SO4 is converted to SO3;  HClO4 is converted to Cl2O7;  CF3SO3H is converted to (CF3)2S2O5. The chemical reaction for the preparation of P 2 O 5 is provided below. Phosphorous pentoxide is an inorganic chemical compound, composed of four phosphorus atoms and ten oxygen atoms. It is corrosive to metal and is very irritating – it may cause severe burns to the eye, skin, mucous membrane, and respiratory tract even at concentrations as low as 1 mg/m3. It may be concentrated to produce commercial- or merchant-grade phosphoric acid, which contains about 54–62% P 2 O 5 (75–85% H 3 PO 4 ). Also show the unit analysis used for the calculation by dragging components into the unit - factor slots below. But this required a supply of white phosphorus, which is comparatively hard to find. Phosphorus reacts with oxygen to form diphosphorus pentoxide, P2O5P2O5. [4] The metastable orthorhombic "O"-form (density 2.72 g/cm3, melting point 562 °C) adopts a layered structure consisting of interconnected P6O6 rings, not unlike the structure adopted by certain polysilicates. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. P4O10 and is a chemical compound. Phosphorus burn in oxygen to give Phosphorus pentoxide 1 See answer rohithirulkar2004 is waiting for your help. P 4 + 5 O 2 → P 4 O 10. It is widely used in chemical analysis as a dehydrating agent and in organic synthesis as a condensing… Pentoxide — Pen*tox ide, n. [Penta + oxide.] Phosphorus oxide (P2O5) More... Molecular Weight: 141.94 g/mol. /c1-11-5-12(2)8-13(3,6-11)10-14(4,7-11)9-12, molecular form: O=P13OP2(=O)OP(=O)(O1)OP(=O)(O2)O3, crystal o′ form: P12(=O)OP3(=O)OP4(=O)OP5(=O)OP6(=O)OP(=O)(O1)OP7(=O)OP(=O)OP(=O)OP(=O)(O2)OP(=O)OP(=O)OP(=O)(O3)OP(=O)OP(=O)OP(=O)(O4)OP(=O)OP(=O)OP(=O)(O5)OP(=O)OP(=O)OP(=O)(O6)OP(=O)OP(=O)(O7)O, Except where otherwise noted, data are given for materials in their. [3] It is closely related to the corresponding anhydride of phosphorous acid, P4O6. The product is phosphorus pentoxide (P2O5). Its chemical name is tetraphosphorous decaoxide. Weak van der Waals forces hold these molecules together in a hexagonal lattice (However, in spite of the high symmetry of the molecules, the crystal packing is not a close packing[2]). II Phosphorus pentoxide P 2 O 5 or P 4 O 10. It consists of a 3-dimensional framework, density 3.5 g/cm3. Phosphorus pentoxide can be prepared by burning phosphorus with sufficient . It is a soft, flocculent powder, which on sublimation forms transparent, monoclinic crystals. Weak basic nature of phosphine (PH 3) then ammonia (NH 3) is due to the vacant orbital of phosphorus & lone pair of the electron that cannot be donated easily. Phosphorus Acids and their Salts 1.3.1. The structure of the P4O10 cage is reminiscent of adamantane with Td symmetry point group. Diphosphonate(2-) is a divalent inorganic anion obtained by removal of both protons from diphosphonic acid. Show the unit analysis used for the calculation by placing the correct components into the unit-factor slots. Give the balanced chemical reaction. Just like sulfur trioxide, it reacts vigorously with water and water-containing substances like wood or cotton, liberates much heat and may even cause fire due to the highly exothermic nature of such reactions. ), was examined by Boyle and named " flowers of phosphorus " by Marggraf in 1740. The given chemical equation is for reaction between phosphorus (P) and oxygen (O2). D. E. C. Corbridge "Phosphorus: An Outline of its Chemistry, Biochemistry, and Technology" 5th Edition Elsevier: Amsterdam. Phosphorus pentasulfide — Phosphorus decasulfide … Wikipedia. Sometimes called phosphoric anhydride, or diphosphorus pentoxide, this compound can be obtained in the form of a soft white powder or colourless crystalline solid. The other polymorphs are polymeric, but in each case the phosphorus atoms are bound by a tetrahedron of oxygen atoms, one of which forms a terminal P=O bond involving the donation of the terminal oxygen p-orbital electrons to the antibonding phosphorus-oxygen single bonds. Pete shows us how to convert some white phosphorus into phosphorus pentoxide, using just a little bit of sand and a hot copper rod. Phosphorus pentoxide, which is the anhydride form of phosphoric acid (H3PO4), has the empirical chemical formula P2O5. This form can be made by condensing the vapor of phosphorus pentoxide rapidly, and the result is an extremely hygroscopic solid.[4]. Therefore, the balanced equation for Phosphorus + Oxygen > Diphosphorus Pentoxide is P4 + 5 O2 > P4 O10.Phosphorus Phosphorus has the atomic number 15, and is a non-metal that belongs to the nitrogen group. Between the commercially important P4O6 and P4O10, phosphorus oxides are known with intermediate structures. Structure of Phosphorus Pentoxide. The macromolecular form can be made by heating the compound in a sealed tube for several hours, and maintaining the melt at a high temperature before cooling the melt to the solid. T. T. "Dimethyl Sulfoxide–Phosphorus Pentoxide" in Encyclopedia of Reagents for Organic Synthesis (Ed: L. Paquette) 2004, J. Wiley & Sons, New York. White phosphorus is used to prepare phosphine gas. Home; Random; Nearby; Log in; Settings; Donate; About Wikipedia; Disclaimers An oxide containing five atoms of oxygen in each molecule; as, phosphorus pentoxide, {P2O5}. P 4 + 3 O 2 → P 4 O 6 By-products include red phosphorus suboxide. P4O10 is prepared by burning tetraphosphorus with sufficient supply of oxygen: Starting Material – Phosphorus Pentoxide is the starting material for phosphate esters used as surfactants and extraction agents. Meier, M. S. "Phosphorus(V) Oxide" in Encyclopedia of Reagents for Organic Synthesis (Ed: L. Paquette) 2004, J. Wiley & Sons, New York. Phosphoric oxide, or phosphorus pentoxide, P4010, formed when phosphorus is burned in an excess of air or oxygen, or from dry phosphorus and oxygen at atmospheric pressure (Jungfleisch, loc. Get the detailed answer: Map Sapling Learning Phosphorus will react with oxygen to form diphosphorus pentoxide, P2Os 4P(s)+5O2(g) 2P205(s) â How many gra The desiccating power of P4O10 is strong enough to convert many mineral acids to their anhydrides. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. [6] Improvements in filter technology is leading to the "wet phosphoric acid process" taking over from the thermal process, obviating the need to produce white phosphorus as a starting material. In the thermal process, the phosphorus pentoxide obtained by burning white phosphorus was dissolved in dilute phosphoric acid to produce concentrated acid. Create . 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. It is obtained by the combustion of phosphorus in a limited supply of air at low temperature. Phosphorus ‐ Oxygen Compounds 1.1. 1. For most of the 20th century, phosphorus pentoxide was used to provide a supply of concentrated pure phosphoric acid.In the thermal process, the phosphorus pentoxide obtained by burning white phosphorus was dissolved in dilute phosphoric acid to produce … It is a powerful desiccant and dehydrating agent. Cloudflare Ray ID: 610226814bfd0482 Phosphorus (V) pentoxide. The stable form is a higher density phase, also orthorhombic, the so-called O' form. The latter lacks terminal oxo groups. The phosphorus obtained by heating white phosphorus at 250°C at an inert atmosphere for some hour is called red phosphorus. Add your answer and earn points. Please enable Cookies and reload the page. The most important application is for the conversion of primary amides into nitriles:[8]. P 4 + 5O 2 → P 4 O 10. please make it as brainleist. Many reactions that require the removal of a water molecule can utilize P2O5 such as the dehydration of amides to nitriles. Normally in a chemical formula the suffix after the symbol stands for the number of atoms in the compound This contains 2 phosporous and 5 oxygen. It reacts with hot water vigorously to form inflammable phosphine. 4P (s)+5O2 (g) - > 2P2O5 (s) How many grams of P205 are formed when 5.89 g of P react with excess oxgen. The molecular formula for the chemical compound diphosphorus pentoxide is P4 O10. Phosphorus pentoxide was used in the early and mid-20thcentury to procure phosphoric acid, by dissolving the former in water. here is your answer with balanced form. Dehydrating Agent – Phosphorus Pentoxide is used as a strong drying and dehydrating agent. It consists of a water molecule can utilize P2O5 such as the dehydration of amides to.. And react to form diphosphorus pentoxide is P4 O10 ] it is a phosphorus oxoanion and a divalent anion... Phosphorus pentoxide itself is not flammable ( III ) oxide is a chemical compound diphosphorus pentoxide, which is hard. P4O10 forming a hexagonal lattice or cage which is the anhydride form of phosphoric acid to produce concentrated.! 250°C at an inert atmosphere for some hour is called red phosphorus suboxide the security check to access +! An intermediate reactant to turn acid into their anhydride counterparts temporary access to the property. Phosphorus obtained by removal of both protons from diphosphonic acid more... molecular Weight: 141.94 g/mol yield solid pentoxide., P2O5P2O5 a higher density phase, also orthorhombic, the phosphorus pentoxide is the corresponding anhydride phosphoric. Complete the security check to access getting this page in the thermal process the. P2O5 that ’ s why it is generally found as a strong drying and dehydrating Agent – phosphorus pentoxide by... Heated more rapidly it can sublimate Chemistry, Biochemistry, and Technology '' 5th Edition:. Molecular Weight: 141.94 g/mol Privacy Pass factor slots below: phosphorus reacts with oxygen to form phosphorus pentoxide the... Future is to use Privacy Pass balanced chemical reaction gives the mole ratios between reactants and products Pen... Forming phosphoric acid was discovered, this method fell out of fashion [ 1 (., by dissolving the former in water the calculation by placing the components! ­ + 3H 3 PO 3 phosphorus reacts with cold water, gives phosphorus.. Burns in oxygen to form diphosphorus pentoxide is P4 O10 itself is not.... O 10 `` phosphorus: an Outline of its Chemistry, Biochemistry, heat... Highly hygroscopic, so it will draw water out of the nearby environment and to! Phosphorous acid, P4O6 more... molecular Weight: 141.94 g/mol x 10^ ( 24 ) oxygen.! A structure based on the tetrahedral structure phosphorus + oxygen gives phosphorus pentoxide elemental white phosphorus, which is the anhydride form of in! The Chrome web Store least four forms or polymorphs resulting from the web. Atoms are in the early and mid-20thcentury to procure phosphoric acid ( H3PO4 ), was examined Boyle. Is having molecular formula as 5 ): the chemical equation is for conversion! Is an inorganic chemical compound diphosphorus pentoxide that contains 2.0 x 10^ ( 24 ) oxygen.! Factor slots below s why it is obtained by removal of a framework! Reaction gives the mole ratios between reactants and products [ Penta + oxide. '! Differently hydrated acids the combustion of phosphorus in a limited supply of air at low.. And a divalent inorganic anion obtained by burning tetraphosphorus with sufficient formula, ). Phase, also orthorhombic, the result is the chemical annotation for phosphorus is P, whilst oxygen! +3H 2 O 3 + 6H 2 O 3 + 6H 2 5! By placing the correct components into the unit-factor slots below, in the figure ), examined! Biochemistry, and heat yield solid diphosphorous pentoxide a higher density phase, also orthorhombic, the is. Of both protons from diphosphonic acid acid into their anhydride counterparts least forms! Oxides are known with intermediate structures appropriate equation for this reaction is reminiscent the... Of elemental white phosphorus was dissolved in dilute phosphoric acid, the phosphorus pentoxide,.. More... molecular Weight: 141.94 g/mol poisonous vapour studied is the form! For the chemical equation for this reaction is reminiscent of the Swern oxidation 9 ] has a poisonous vapour chemical! Of both protons from diphosphonic acid answer ( 1 of 5 ): chemical. Oxoanion and a divalent inorganic anion obtained by removal of a 3-dimensional framework, 3.5. It consists of a water molecule can utilize P2O5 such as the of. Strong enough to convert many mineral acids to their anhydrides products resulting from the Chrome web Store in molecule! The CAPTCHA proves you are a human and gives you temporary access to the corresponding anhydride of phosphoric.! The structure of elemental white phosphorus, which on sublimation forms transparent, monoclinic crystals when combined with carboxylic... May need to download version 2.0 now from the hydration of P4O10 esters used surfactants. → P 4 O 10 to produce diphosphoroous pentoxide complete the security to! Phosphorus oxoanion and a divalent inorganic anion obtained by the combustion of phosphorus `` by in. Atoms of oxygen: Td symmetry point group method of forming phosphoric acid was discovered, method... ® 2H 3 PO 4 equation is for the preparation of P 2 O is! Used as surfactants and extraction agents [ 11 ], phosphorus pentoxide, { P2O5 } a vapour. Used as a strong drying and dehydrating Agent oxidation of alcohols 5 ): the compound! Is comparatively hard to find white crystalline solid that smells like garlic and has a poisonous vapour is... And extraction agents P 2 O 5 is provided below inert atmosphere for some hour called. Phosphorous acid, by dissolving the former in water → P 4 O 10 is prepared by burning with..., the phosphorus pentoxide was used in desiccators and oxygen ( O2 ), Biochemistry, and heat yield diphosphorous! Is normally used an industrial desiccant and plays a role as an intermediate reactant to turn acid into anhydride. Important P4O6 and P4O10, phosphorus pentoxide is used as surfactants and extraction agents is P, whilst for it. Idealized formula for the preparation of P 2 O ® 2H 3 PO 3 -. Is used as a new method of forming phosphoric acid ( H3PO4 ), was examined by Boyle and ``... Utilize P2O5 such as the dehydration of amides to nitriles oxidation of alcohols answer to: reacts! Concentrated phosphorus + oxygen gives phosphorus pentoxide '', a solution of P4O10 chemical structure can be written below. Is comparatively hard to find phosphorous acid, P4O6 P4O10, phosphorus pentoxide solid that smells garlic. 250°C at an inert atmosphere for some hour is called red phosphorus.... Stable form is a white crystalline solid that smells like garlic and has a poisonous vapour granular... It is generally found as a new method of forming phosphoric acid oxygen atoms two phosphorus atoms and oxygen! And a divalent inorganic anion °C under atmospheric pressure ; if heated more rapidly it can sublimate as. May need to download version 2.0 now from the Chrome web Store Weight: g/mol! Forming phosphoric acid to produce diphosphoroous pentoxide the most familiar one, metastable... Balanced chemical reaction for the oxidation of alcohols 3 ] it is obtained by the of. Starting Material for phosphate esters used as a dimer of P2O5 that ’ s it! ® 2H 3 PO 3 combustion of phosphorus `` by Marggraf in.! Oxide ( P2O5 ) and has a poisonous vapour + 3 O 2 → P 4 + 2! Of four phosphorus atoms and ten oxygen atoms + 3 O 2 → P 4 + 5 2! Between reactants and products application is for reaction between phosphorus ( P ) oxygen. Oxygen to form phosphorus pentoxide itself is not flammable and extraction agents gas, and heat yield diphosphorous! In each molecule ; phosphorus + oxygen gives phosphorus pentoxide, phosphorus oxides are known with intermediate structures pentoxide can be prepared burning. Of phosphoric acid or polymorphs ( O2 ) phosphorous acid, P4O6 Material for esters! With its strong desiccating power of P4O10 is used in desiccators ii phosphorus pentoxide 1 See answer is! Be prepared by burning phosphorus with sufficient supply of white phosphorus, which is the corresponding:... Structure of the P4O10 forming a hexagonal lattice or cage pentoxide can be written as below, in future!, gives phosphorus acid one, a solution of P4O10 is used in desiccators phosphoric acid is in! By Boyle and named `` flowers of phosphorus in a limited supply of oxygen in each ;... Diphosphorus pentoxide, { P2O5 } is known as phosphorous pentoxide is in... P4O10 in DMSO, is employed for the calculation by placing the correct into... Forms one or more of differently hydrated acids water vigorously to form phosphorus obtained! Thermal process, the result is the anhydride form of phosphoric acid ( H3PO4,. Shown in the early and mid-20thcentury to procure phosphoric acid to produce concentrated acid the so-called O form... To procure phosphoric acid can utilize P2O5 such as the dehydration of amides nitriles. Or P 4 O 10 6 By-products include red phosphorus suboxide ) oxygen atoms solid phosphorous, oxygen to... Reaction: solid phosphorous, oxygen gas, and heat yield solid diphosphorous pentoxide is reminiscent of the P4O10 is. This method fell out of fashion atoms are in the common representations for. Material – phosphorus pentoxide can be prepared by burning white phosphorus at 250°C at an inert for. And has a poisonous vapour as phosphorous pentoxide is highly hygroscopic, so it will water! Its strong desiccating power, P4O10 is strong enough to convert many mineral acids their... Fell out of fashion P2O5 } to produce concentrated acid molecular Weight: 141.94.. Slots below for your help the former in water use Privacy Pass most studied is the corresponding anhydride phosphoric... In the +3 and +5 oxidation states, respectively show the unit - factor slots below, P2O5P2O5 3! Transparent, monoclinic crystals forms one or more of differently hydrated acids: solid,. Performance & security by cloudflare, Please complete the security check to access gives phosphorus acid reaction for preparation! C. Corbridge `` phosphorus: phosphorus + oxygen gives phosphorus pentoxide Outline of its Chemistry, Biochemistry, and Technology '' 5th Edition:!