NITROGEN PENTOXIDE
NITROGEN PENTOXIDE
CAS: 10102-03-1
Molecular Formula: N2O5
NITROGEN PENTOXIDE - Names and Identifiers
| Name | NITROGEN PENTOXIDE |
| Synonyms | Nitrogen pentoxide NITROGEN PENTOXIDE initrogenpentaoxide dinitrogen pentaoxide Nitrogen oxide (N2O5) Dinitrogen pentaoxide 1,3-dioxodiazoxane 1,3-dioxide |
| CAS | 10102-03-1 |
| EINECS | 233-264-2 |
| InChI | InChI=1/N2O5/c3-1(4)7-2(5)6 |
NITROGEN PENTOXIDE - Physico-chemical Properties
| Molecular Formula | N2O5 |
| Molar Mass | 108.01 |
| Density | d15 2.05 |
| Melting Point | 30° |
| Boling Point | bp760 47.0°; bp100 7.0°; bp10 -20° |
| Water Solubility | very soluble chloroform without appreciable decomposition; less soluble CCl4 [MER06] |
| Appearance | colorless hexagonal crystals |
| Refractive Index | 1.437 |
NITROGEN PENTOXIDE - Reference Information
| production method | preparation method 2HNO 3 P 2 O 5 → N 2 O 5 2HPO 3 take 500mL three-necked flask, one end is connected to the oxygen and ozone Inlet (the oxygen passes through the concentrated sulfuric acid wash bottle and the safety bottle and then enters the ozone generator and is connected to the three neck flask), and the other end is connected to the receiver, the trap and the bubble counter in turn. 100g of frozen colorless concentrated sulfuric acid (density: 1.5g/cm 3) was placed in a three-necked flask, the receiver was temporarily disconnected, and oxygen was blown into the acid for 10min, the flask was immersed in a dry ice alcohol bath to freeze the nitric acid to a solid (very important) and the receiver was reattached. The receiver was also immersed in a dry ice/alcohol bath. Oxygen was continued for several minutes, and it was estimated that the wet air of the whole system was exhausted. The Middle plug of the three-necked flask was opened, and about 125g of phosphorus pentoxide was rapidly spread on the surface of the solidified nitric acid, close the stopper and activate the ozone generator. The dry ice bath under the three-necked flask was removed and changed to a water bath at room temperature. When the acid melts slowly, the liquefied portion acts with a large excess of phosphorus pentoxide, and after the strong reaction has settled, the reactants are stirred rapidly, waiting for the reaction to calm again. The water bath temperature was then slowly increased to 40 °c for several hours until the reaction appeared complete. The water bath was removed and ozonated oxygen was allowed to flow through the reactants for 1H, or more. About 42g of product was obtained. |
Last Update：2024-04-09 15:16:45
