Stickstoffmonoxid
NO · nitric · NITROGEN MONOXIDE · Nitrogen monooxide · Stickoxide · NITRICMONOXIDE · DIBROMOHEXAMIDINE ISETHIONATE · oxo-amidoge
Identifikatoren & physikalische Daten
| CAS No. | 10102-43-9 |
|---|---|
| Summenformel | HNO |
| Durchschnittliche Molmasse | 31,014 g/mol |
| Monoisotopische Masse | 31,00581365 g/mol |
| SMILES | N=O |
| InChIKey | ODUCDPQEXGNKDN-UHFFFAOYSA-N |
| PubChem CID | 945 |
| ChEMBL | CHEMBL1234765 |
| ChEBI | CHEBI:84879 |
| DTXSID | DTXSID901361717 |
| Lokaler Name | Stickstoffmonoxid |
Chemische & physikalische Eigenschaften
| XLogP | 0,2 |
|---|---|
| Polarare Oberfläche (TPSA) | 40,9 |
| H-Brücken-Donoren | 1 |
| H-Brücken-Akzeptoren | 2 |
| Frei drehbare Bindungen | 0 |
| Schwere Atome | 2 |
| Formalladung | 0 |
| Komplexität | 2 |
| SpringerMaterials Properties | Schoenflies notation |
| Schmelzpunkt | −163.6 °C(lit.) |
| Siedepunkt | −151.7 °C(lit.) |
| Dichte | d-150.2 (liq) 1.27Relative d (gas) 1.036 (air = 1)Absolute d (gas) 1.227 (air = 1) |
| Dampfdichte | 1.05 (vs air) |
| Brechungsindex | nD25 1.0002697 |
| Löslichkeit | At 20 °C and at a pressure of 101 kPa, 1 volume dissolves in about 21 volumes of water.slightly soluble H2O [HAW93] |
| Aggregatzustand | colorless gas |
| Farbe | colorless |
| Spezifische Wärmekapazität | Cp(gas): 1 J/(g·K), at 25℃ |
| Merck | 13,6611 |
| Henry-Konstante | 1.9×10-5 mol/(m3Pa) at 25℃, Warneck and Williams (2012) |
| Stabilität | Spontaneously reacts with oxygen in air to yield brown nitrogen dioxide. Reacts violently or explosively with ammonia and many organic materials. |
| InChI | 1S/NO/c1-2 |
| InChIKey | MWUXSHHQAYIFBG-UHFFFAOYSA-N |
| SMILES | [N]=O |
| CAS Datenbank | 10102-43-9(CAS DataBase Reference) |
| EPA chemische Informationen | Nitric oxide (10102-43-9) |
Sicherheit & Vorschriften
| Berufliche Expositionsstufe (OEB) | A |
|---|---|
| Arbeitsplatzgrenzwert (OEL) | TWA: 25 ppm (30 mg/m3) |
| Wassergefährdungsklasse (WGK) | 1 |
| Sofort lebensgefährliche Konzentration | 100 ppm |
| TSCA-Inventar-Status | TSCA listed |
| UN-Transportnummer | UN 1660 (NITRIC OXIDE, COMPRESSED) |
| RTECS-Nr. | QX0525000 |
| R-Sätze (R) | 8-23-34-44 |
| Toxizität | LCLo inhalation in dog: 5000ppm/25M |
| Gefahrensymbole | O,T |
| Sicherheitshinweise (S) | 17-23-36/37/39-45 |
| Gefahrenklasse | 2.3Acute Tox. 1 InhalationOx. Gas 1Press. Gas Compr. GasSkin Corr. 1B |
| Lagerklasse | 2A - Gases |
| DOT Classification | 2.3, Hazard Zone A (Gas poisonous by inhalation) |
| Gefahrstoffdaten | 10102-43-9(Hazardous Substances Data) |
Anwendungen & Verwendung
Beschreibung
near room temperature (its liquid density at 20°C is 1.45 g/cm3). Nitrogen monoxide (NO) is commonly called nitric oxide,Nitric oxide is colorless and has a sharp sweet odor;Nitric oxide is nonfl ammable, toxic gases.Nitric oxide is a free radical that quickly reacts in air to produce nitrogen dioxide.It is also an important biological messenger and transmitter.
History
Nitric oxide was prepared in 1772 by Joseph Priestley (1733–1804) and described in his volumes Experiments and Observations of Different Kinds of Air published between 1774 and 1786. Priestley called nitric oxide nitrous air, nitrogen dioxide nitrous acid vapor, and nitrous oxide phlogisticated nitrous air, but also referred to the latter as diminished nitrous air. He observed the change of clear nitric oxide to red nitrogen dioxide. Priestley prepared nitric oxide by reacting nitric acid with a metal such as copper: 3Cu(s) + 8HNO3(aq) → 2NO(g) + 3Cu(NO3)2(aq) + 4H2O(l).
Verwenden
Nitric oxide is used as an intermediate in themanufacture of nitric acid, in the preparationof metal nitrosyls, in bleaching of rayon,and in incandescent lamps. It is produced byheating air at high temperatures.