Phosphorus Pentoxide. Desiccants must be chemically compatible with the material being dried, and, if in doubt, the … Its density is 2.30 g/cm3. Phosphorus pentoxide is a white odourless solid produced when phosphorus burns: has a strong affinity for water with which it forms phosphoric acids. The second type is an alkaline desiccant, which has a solid caustic soda, a lime desiccant and soda lime (a mixture of sodium hydroxide … 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). Never store it in aluminium, and galvanized or tin-plated containers! It is a powerful desiccant. It is a powerful desiccant and dehydrating agent. This white crystalline solid is the anhydride of phosphoric acid. Mfr. In other cases, use of an Abderhalden pistol … Phosphorus pentoxide is a powerful desiccant and dehydrating agent, reacting violently with water and releasing heat. Phosphorus pentoxide is an anhydride of phosphoric acid, which is produced by combustion of elemental phosphorus in the presence of sufficient air. It exists as a dimer. A similar result for this desiccant was noted earlier with acetonitrile.' Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. Common chemical desiccants can be divided into three categories: One type is an acidic desiccant, which is rich in H2SO4, phosphorus pentoxide P2O5 (non-dryable NH3), silica gel desiccant, etc. It can be used in the manufacturer of phosphorus compounds including special phosphoric acid supported catalysts. It is a white crystalline solid which is used as a powerful dehydrating agent.  The dehydration of phosphoric acid to give phosphorus pentoxide is not possible as on heating metaphosphoric acid will boil without losing all its water. However, a similar problem arises with respect to nucleation as in ordinary mixing: it is not simply a case of a desiccant action such as shown by phosphorus pentoxide. Phosphorus pentoxide is a potent dehydrating agent as indicated by the exothermic nature of its hydrolysis: P 4 O 10 (am) + 6H 2 O (lq) → 4H 3 PO 4 (c) (-177 kJ ) However, its utility for drying is limited somewhat by its tendency to form a protective viscous coating that inhibits further dehydration by unspent material. No. In the event of contact with eyes and skin, rinse with water. Set Starty point and interval for your subscription and submit order! Phosphorus pentoxide is used as a chemical intermediate and condensing agent for organic reactions. Phosphorus pentoxide is normally used as an industrial desiccant and plays a role as an intermediate reactant to turn acid into their anhydride counterparts. It is most commonly used to remove humidity that would normally degrade or even destroy products sensitive to moisture. Phosphorus Pentoxide is used as a powerful desiccant and dehydrating agent, and is a useful building block and reagent in the chemical industry. Formula of … Merck offers di-phosphorus pentoxide in the grades âextra pureâ and âfor analysis ACS, ISO, Reag. Its chemical name is tetraphosphorous decaoxide. Ph Eurâ. No. » request a quote Vanadium Pentoxide. It is used in the preparation of phosphoric acids, as a drying and dehydrating agent, and in organic synthesis. Phosphorus pentoxide is a chemical compound with molecular formula P 4 O 10 (with its common name derived from its empirical formula, P 2 O 5). By the way: Through your account you can customize or delete your subscriptions anytime. With the new Carl Roth Replenishment Service you can let products be ordered automatically which you need regularly in your lab! See a sample below or register for free to see much more. Phosphorus pentoxide is used as a chemical intermediate and condensing agent for organic reactions. Founded in 1992 which is specialized in producing phosphorus pentoxide and polyphosphoric acid with a complete of equipments and testing instruments covers an area of 10000 m2 and more. ( Two identical molecules linked together) P4O10 -Molecular formula. One type is an acidic desiccant, which is rich in H2SO4, phosphorus pentoxide P2O5 (non-dryable NH3), silica gel desiccant, etc. Thanks for asking. 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. This is an empirical formula. Phosphorus pentoxide crystallizes in at least four forms or polymorphs. As with most materials in contact with the atmosphere, even at moderate humidities, hemihydrate a d sorbs something approaching a monolayer of water, but reaction cannot occur because this water cannot hold anything in solution. Contact with eyes will result in severe eye damage, even blindness. Search results for phosphorous pentoxide at Sigma-Aldrich. Phosphorus Pentoxide, Reagent, ACS is the anhydride of phosphoric acid and a powerful dehydrating and desiccant agent. Please provide your batch number. Luer, B.; Jansen, M. "Crystal Structure Refinement of Tetraphosphorus Nonaoxide, P, https://en.wikipedia.org/w/index.php?title=Phosphorus_pentoxide&oldid=980805282, 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 28 September 2020, at 15:29. The most important application is for the conversion of primary amides into nitriles:. DESICCANT CAPACITY OF CARRIER-BASED PHOSPHORUS PENTOXIDE An absorption tube (25 x 350 mm) charged with 8-12 mesh granules, contained 28-2 g of desic- cant. This is a white, flammable, dangerous, and extremely deliquescent solid. Since acetone has the lowest dielectric constant of the sol- vents investigated here, it might be predicted that its drying should be relatively easy. Phosphorus Pentoxide Phosphorus pentoxide is a chemical compound with molecular formula P4O10. It is a chemical compound with molecular formula. Safety: Avoid contact; wear safety spectacles and gloves. MilliporeSigma â¦description: Phosphorus pentoxide (P2O5) is a phosphorous oxide. Alternatively, when combined with a carboxylic acid, the result is the corresponding anhydride:. 99% Phosphorus Pentoxide for Desiccant picture from Jiangsu Bohan Industry Trade Co., Ltd. view photo of Diphosphorus Pentoxide, P2o5, Phosphorus Pentoxide.Contact China Suppliers for More Products and Price. Tidwell, Phosphorus Pentoxide CAS No. It is most commonly used to remove humidity that would normally degrade or even destroy products sensitive to moisture. This white crystalline solid is the anhydride of phosphoric acid. T. T. "Dimethyl Sulfoxide–Phosphorus Pentoxide" in Encyclopedia of Reagents for Organic Synthesis (Ed: L. Paquette) 2004, J. Wiley & Sons, New York. PHOSPHORUS PENTOXIDE CAS No.  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. phosphorus pentoxide manufacturer/supplier, China phosphorus pentoxide manufacturer & factory list, find qualified Chinese phosphorus pentoxide manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.com. Phosphorus oxides: P4O6, P4O7, P4O8, P4O9, and P4O10. Phosphorus Pentoxide is a chemical compound with molecular formula P 4 O 10 (with its common name derived from its empirical formula P 2 O 5).  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. The values which he found for the residual moisture left by each desiccant are, without ex ception, much higher than those found in later investigations. It is an anhydride of phosphoric acid. : 1314-56-3 Purity : 99% Other Name : Phosphoric Anhydride, Disphosporus Pentoxide Molecular Weight : 141.95 Product Description : Free flowing white Hygroscopic Powder … The safest method is to dry in a vacuum desiccator over concentrated sulphuric acid, phosphorus pentoxide, silica gel, calcium chloride, or some other desiccant. 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. Phosphorus pentoxide is a chemical compound with formula P2O5. Subscribers to our Commodity Price Database have access to Phosphorus Pentoxide and as many as 217 other commodities prices across several countries from main world regions. Youâre mixing things up. DESICCANT CAPACITY OF CARRIER-BASED PHOSPHORUS PENTOXIDE An absorption tube (25 x 350 mm) charged with 8-12 mesh granules, contained 28-2 g of desic- cant. phosphorus pentoxide. Then it appears there are 10 oxygen atoms where is the 5 coming from? Phosphorus pentoxide is a chemical compound with molecular formula P4O10 (with its common name derived from its empirical formula, P2O5). It acts as powerful dehydrating and desiccant agent because of exothermic nature of its hydrolysis. We specialize in manufacturing the Phosphorus Pentoxide,Polyphosphoric Acid Changzhou Qishuyan Fine Chemical CO., LTD. List of desiccants: Art. hill (3) using phosphorus pentoxide as a desiccant in vacuo, demonstrated a loss of TABLE II Influence of shelf position on moisture content of meat-and-bonemeal determined at 85?C and 25 inches Hg for one hour Moisture content, percent Position Upper Shelf Lower Shelf \Left 5.44 5.40 Front/Right 5.42 5.44 \Left 5.73 … Search results for phosphorus pentoxide at Sigma-Aldrich. In Anthony Burgess' The Wanting Seed, phosphorus pentoxide is a highly prized compound. Fiction. It is a powerful desiccant. Appearance. MilliporeSigma offers di-phosphorus pentoxide in the grades “extra pure” and “for analysis ACS, ISO, Reag. 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. wear protective gloves/eye protection, IF SWALLOWED: rinse mouth. It reacts with water to form phosphoric acid H3PO4. Storage. The solid reacts with water violently to produce phosphoric acid. Sicapent is a granular dessicant comprising ~75% phoshorus pentoxide on an inert inorganic carrier. /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. Rinse skin with water [or shower], IF IN EYES: Rinse cautiously with water for several minutes. Phosphorus pentoxide is an extremely powerful desiccant, and contact with bare hand must be avoided. Phosphorous pentoxide is an inorganic chemical compound, composed of four phosphorus atoms and ten oxygen atoms. It is a powerful desiccant and dehydrating agent. Structure. The solid reacts with water violently to produce phosphoric acid. In summary, although phosphorus pentoxide gave the best drying, it also induced significant decomposition, and the method of choice for Me2SO would appear to be initial frac- tional distillation followed by sequential drying with molec- ular sieves. Phosphorus pentoxide desiccant, with moisture indicator; CAS Number: 1314-56-3; EC Number: 215-236-1; Synonym: Sicapent®, Phosphoric anhydride, Phosphorus(V) oxide; Linear Formula: O5P2; find Sigma-Aldrich-79610 MSDS, related peer-reviewed papers, technical documents, similar products & more at … Do NOT induce vomiting, IF ON SKIN (or hair): Take off immediately all contaminated clothing. 99% Phosphorus Pentoxide for Desiccant, Find Details about Diphosphorus Pentoxide, P2o5 from 99% Phosphorus Pentoxide for Desiccant - Jiangsu Bohan Industry Trade Co., Ltd. As with most materials in contact with the atmosphere, even at moderate humidities, hemihydrate a d sorbs something approaching a monolayer of water, but reaction … , InChI=1S/P6o5 It can be used in the manufacturer of phosphorus compounds including special phosphoric acid … C989X80. These manufacturing companies are providing high quality phosphorus pentoxide as per clients requirements.