산화 질소
산화질소 · 일산화질소 · 다이브로모헥사미딘이세티오네이트 · 산화 질소 · NO · nitric · NITROGEN MONOXIDE · Nitrogen monooxide
식별자 및 물리적 특성
| CAS No. | 10102-43-9 |
|---|---|
| 분자식 | HNO |
| 평균 분자량 | 31.014 g/mol |
| 단동위원소 질량 | 31.00581365 g/mol |
| SMILES | N=O |
| InChIKey | ODUCDPQEXGNKDN-UHFFFAOYSA-N |
| PubChem CID | 945 |
| ChEMBL | CHEMBL1234765 |
| ChEBI | CHEBI:84879 |
| DTXSID | DTXSID901361717 |
| 현지명 | 산화 질소 |
화학 및 물리적 성질
| XLogP | 0.2 |
|---|---|
| 극성 표면적 | 40.9 |
| 수소 결합 공여자 수 | 1 |
| 수소 결합 수용자 수 | 2 |
| 회전 가능 결합 수 | 0 |
| 무거운 원자 수 | 2 |
| 형식 전하 | 0 |
| 복잡도 | 2 |
| SpringerMaterials Properties | Schoenflies notation |
| 녹는점 | −163.6 °C(lit.) |
| 끓는 점 | −151.7 °C(lit.) |
| 밀도 | d-150.2 (liq) 1.27Relative d (gas) 1.036 (air = 1)Absolute d (gas) 1.227 (air = 1) |
| 증기 밀도 | 1.05 (vs air) |
| 굴절률 | nD25 1.0002697 |
| 용해도 | 20°C, 101kPa의 압력에서 1부피는 약 21부피의 물에 용해됩니다. |
| 물리적 상태 | 무색 가스 |
| 색상 | 무색의 |
| 용해도 | 물에 거의 녹지 않음 [HAW93] |
| 비열 | Cp(gas): 1 J/(g·K), at 25℃ |
| Merck | 13,6611 |
| 헨리 상수 | 1.9×10-5 mol/(m3Pa) at 25℃, Warneck and Williams (2012) |
| 안정성 | 공기 중의 산소와 자발적으로 반응하여 갈색 이산화질소를 생성합니다. 암모니아 및 많은 유기 물질과 격렬하게 또는 폭발적으로 반응합니다. |
| InChI | 1S/NO/c1-2 |
| InChIKey | MWUXSHHQAYIFBG-UHFFFAOYSA-N |
| SMILES | [N]=O |
| EPA | Nitric oxide (10102-43-9) |
화학적 성질
Nitric oxide,NO, also known as nitrogen oxide and nitrogen monoxide, is a colorless gas that will react with oxygen at room temperature to form nitrogen dioxide, N202, a reddish-brown gas.It is soluble in water and alcohol and is used primarily to form other compounds.
안전 및 규제
| 직업 노출 등급(OEB) | A |
|---|---|
| 직업 노출 한계(OEL) | TWA: 25 ppm (30 mg/m3) |
| 수질 위해 등급(WGK) | 1 |
| 즉시 생명 위험 농도 | 100 ppm |
| TSCA 등재 상태 | TSCA listed |
| RTECS 번호 | QX0525000 |
| 운송 번호(UN) | UN 1660 (NITRIC OXIDE, COMPRESSED) |
| 독성 | LCLo inhalation in dog: 5000ppm/25M |
| 위험 문구(R) | 8-23-34-44 |
| 위험 표시 | O,T |
| 안전 문구(S) | 17-23-36/37/39-45 |
| 위험 등급 | 2.3Acute Tox. 1 InhalationOx. Gas 1Press. Gas Compr. GasSkin Corr. 1B |
| 기존화학 물질 | KE-25996 |
| DOT ClassificationII | 2.3, Hazard Zone A (Gas poisonous by inhalation) |
| 저장 분류 | 2A - Gases |
| 유해 물질 데이터 | 10102-43-9(Hazardous Substances Data) |
| 사고대비 물질 필터링 | 57 |
용도
개요
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.
역사
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).
용도
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.
일반 설명
A colorless gas. Noncombustible but accelerates the burning of combustible material. Vapors heavier than air. Very toxic by inhalation and skin absorption. Heating the containers may cause them to rupture violently and rocket. Nitric oxide was discovered by Van Helmont in 1620. It occurs in the exhaust gases from automobiles along with other oxides of nitrogen, at trace concentrations. It also is found in minute quantities in the upper atmosphere, resulting from the oxidation of nitrogen in the presence of ionizing radiation or by electric discharge. Nitric oxide is the most stable oxide of nitrogen. It is used as an intermediate or as a starting reactant in the production of many nitrogen compounds, including nitrogen dioxide, nitric acid and nitrosyl chloride.
제조 및 합성 방법
생산 방법
Nitric oxide is commercially produced by the catalytic oxidation of ammonia using aplatinum catalyst: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g).