Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound
Dinitrogen pentoxide (also known as nitrogen pentoxide or nitric anhydride) is the chemical compound with the formula N2O5. It is one of the binary nitrogen oxides, a family of compounds that only contain nitrogen and oxygen. It exists as colourless crystals that sublime slightly above room temperature, yielding a colorless gas.[4]
Dinitrogen pentoxide is an unstable and potentially dangerous oxidizer that once was used as a reagent when dissolved in chloroform for nitrations but has largely been superseded by nitronium tetrafluoroborate (NO2BF4).
N2O5 is a rare example of a compound that adopts two structures depending on the conditions. The solid is a salt, nitronium nitrate, consisting of separate nitronium cations [NO2]+ and nitrate anions [NO3]−; but in the gas phase and under some other conditions it is a covalently-bound molecule.[5]
^ abHaynes, p. 4.76
^Simon, Arndt; Horakh, Jörg; Obermeyer, Axel; Borrmann, Horst (1992). "Kristalline Stickstoffoxide — Struktur von N2O3 mit einer Anmerkung zur Struktur von N2O5". Angewandte Chemie (in German). 104 (3). Wiley: 325–327. Bibcode:1992AngCh.104..325S. doi:10.1002/ange.19921040321.
^Haynes, p. 5.29
^Connell, Peter Steele. (1979) The Photochemistry of Dinitrogen Pentoxide. Ph. D. thesis, Lawrence Berkeley National Laboratory.
^Angus, W.R.; Jones, R.W.; Phillips, G.O. (1949). "Existence of Nitrosyl Ions (NO+) in Dinitrogen Tetroxide and of Nitronium Ions (NO2+) in Liquid Dinitrogen Pentoxide". Nature. 164 (4167): 433. Bibcode:1949Natur.164..433A. doi:10.1038/164433a0. PMID 18140439. S2CID 4136455.
and 28 Related for: Dinitrogen pentoxide information
Dinitrogenpentoxide (also known as nitrogen pentoxide or nitric anhydride) is the chemical compound with the formula N2O5. It is one of the binary nitrogen...
Dinitrogen dioxide, N2O2; Dinitrogen trioxide, N2O3; Dinitrogen tetroxide, N2O4, an unstable dimer of nitric oxide; Dinitrogenpentoxide, N2O5. This set index...
Dinitrogen tetroxide, commonly referred to as nitrogen tetroxide (NTO), and occasionally (usually among ex-USSR/Russia rocket engineers) as amyl, is the...
Lindemann mechanism involved study of the gas-phase decomposition of dinitrogenpentoxide 2 N2O5 → 2 N2O4 + O2. This reaction was studied by Farrington Daniels...
Dinitrogen trioxide (also known as nitrous anhydride) is the inorganic compound with the formula N2O3. It is a nitrogen oxide. It forms upon mixing equal...
production of anhydrous nitric acid and nitric acid solutions of dinitrogenpentoxide", published April 13, 1987, issued March 13, 2001, assigned to United...
below 21.2 °C (70.2 °F; 294.3 K). It forms an equilibrium with its dimer, dinitrogen tetroxide (N2O4), and converts almost entirely to N2O4 below −11.2 °C...
Nitrous oxide (dinitrogen oxide or dinitrogen monoxide), commonly known as laughing gas, nitrous, nitro, or nos, is a chemical compound, an oxide of nitrogen...
which reacts with water forming chromic acid: CrO3 + H2O → H2CrO4 Dinitrogenpentoxide, which reacts with water forming nitric acid: N2O5 + H2O → 2 HNO3...
[NO2]+[SbF6]−. These are all very hygroscopic compounds. The solid form of dinitrogenpentoxide, N2O5, actually consists of nitronium and nitrate ions, so it is...
adds to give fluorosulfuric acid: SO3 + HF → FSO3H SO3 reacts with dinitrogenpentoxide to give the nitronium salt of pyrosulfate: 2 SO3 + N2O5 → [NO2]2S2O7...
oxygen to nitrogen. Upon condensing to a liquid, nitric oxide dimerizes to dinitrogen dioxide, but the association is weak and reversible. The N–N distance...
{\displaystyle {\ce {Na(SO3NH2) + HNO3 -> O2NNH2 + NaHSO4}}} and reaction of dinitrogenpentoxide with two equivalents of ammonia. N 2 O 5 + 2 NH 3 ⟶ O 2 NNH 2 + NH...
in 1907 by Amé Pictet and E. Khotynsky from acetic anhydride and dinitrogenpentoxide, fuming nitric acid can also be used: (CH3CO)2O + HNO3 → CH3C(O)ONO2...
and boron trifluoride to a nitromethane solution of nitric acid or dinitrogenpentoxide. Nitronium tetrafluoroborate is used as a nitration agent. Kenneth...
conditions it is a gas. Nitryl chloride can be formed in the reaction of dinitrogenpentoxide with chlorides or hydrogen chloride: N2O5 + 2HCl → 2ClNO2 + H2O N2O5...
PMC 8621047. PMID 34834017. Bakke, Jan M.; Hegbom, Ingrid (1994). "DinitrogenPentoxide-Sulfur Dioxide, a New nitrate ion system". Acta Chemica Scandinavica...
nitrate (Au(NO3)3) was reported from the reaction of gold oxide and dinitrogenpentoxide, however, this was later proven to be nitronium tetranitratoaurate...
{NO2 + O3 -> NO3 + O2}}} The NO3 formed can react with NO2 to form dinitrogenpentoxide (N2O5). Solid nitronium perchlorate can be made from NO2, ClO2, and...
ReO3Cl (produced by reacting rhenium trioxide and chlorine) and dinitrogenpentoxide: ReO3Cl + N2O5 → ReO3NO3 + NO2Cl The ReO3Cl can be replaced with...
other methods. Nitrogen trioxide is a product of the photolysis of dinitrogenpentoxide N 2O 5, chlorine nitrate ClONO 2, and peroxynitric acid HO 2NO 2...
cells also allow measurement of ozone (O3), nitric acid (HNO3) and dinitrogenpentoxide (N2O5) The specific objectives of ISAMS were: (i) To obtain measurements...