亚硝酰氢氧化物（CAS 7782-77-6）：分子式 HNO2、分子量 47.014。
| CAS号 | 7782-77-6 |
|---|---|
| 分子式 | HNO2 |
| 分子量 | 47.014 |
| 熔点 | 271 |
| 沸点 | 320 |
| LogP | -3.7 |
| 应用领域 | Uses: Formed as a product of combustion and when nitrogen dioxide reacts with water、Used to make diazotizing compounds and as a source of nitric oxide、[HSDB]、Formation of diazotizing compounds by reaction with primary aromatic amines、source of nitric oxide、Nitrous acid is used in chemical synthesis. (L1615)、Methods of Manufacturing: Formed by the action of strong acids on inorganic nitrites.、Nitrous acid is not an article of commerce owing to its inherent instability. Sodium nitrite serves as the primary industrial source for nitrous acid in organic syntheses、for instance in the diatozation and nitrosation of aromatic amines. Under controlled conditions of acidification、the nitrous acid generated can react before excessive decomposition occurs.、General Manufacturing Information: Nitrous acid: ACTIVE、... also formed when nitrogen dioxide (NO2) reacts with water |
登记用途：Uses: Formed as a product of combustion and when nitrogen dioxide reacts with water、Used to make diazotizing compounds and as a source of nitric oxide、[HSDB]、Formation of diazotizing compounds by reaction with primary aromatic amines、source of nitric oxide、Nitrous acid is used in chemical synthesis. (L1615)、Methods of Manufacturing: Formed by the action of strong acids on inorganic nitrites.、Nitrous acid is not an article of commerce owing to its inherent instability. Sodium nitrite serves as the primary industrial source for nitrous acid in organic syntheses、for instance in the diatozation and nitrosation of aromatic amines. Under controlled conditions of acidification、the nitrous acid generated can react before excessive decomposition occurs.、General Manufacturing Information: Nitrous acid: ACTIVE、... also formed when nitrogen dioxide (NO2) reacts with water。
亚硝酰氢氧化物 是一种化工化合物，登记 CAS 号为 7782-77-6，分子式 HNO2（分子量 47.014）。
登记 CAS 号：7782-77-6
其分子式 HNO2 由 1 个氢、1 个氮、2 个氧 组成。
别名/同义词：亚硝酰氢氧化物 · nitrosyl hydroxide
亚硝酰氢氧化物 的 CAS 登记号为 7782-77-6。
分子式 HNO2，分子量 47.014。
别名/同义词：亚硝酰氢氧化物、nitrosyl hydroxide。
登记用途：Uses: Formed as a product of combustion and when nitrogen dioxide reacts with water、Used to make diazotizing compounds and as a source of nitric oxide、[HSDB]、Formation of diazotizing compounds by reaction with primary aromatic amines、source of nitric oxide、Nitrous acid is used in chemical synthesis. (L1615)、Methods of Manufacturing: Formed by the action of strong acids on inorganic nitrites.、Nitrous acid is not an article of commerce owing to its inherent instability. Sodium nitrite serves as the primary industrial source for nitrous acid in organic syntheses、for instance in the diatozation and nitrosation of aromatic amines. Under controlled conditions of acidification、the nitrous acid generated can react before excessive decomposition occurs.、General Manufacturing Information: Nitrous acid: ACTIVE、... also formed when nitrogen dioxide (NO2) reacts with water。
亚硝酰氢氧化物（CAS 7782-77-6）的独立参考数据，整理自公开化学数据库。
| CAS Registry Number | 7782-77-6 |
|---|---|
| PubChem CID | 24529 |
| Molecular formula | HNO2 |
| IUPAC name | nitrous acid |
| UNII (FDA) | T2I5UM75DN |
| Molecular Weight | 47.014 |
|---|---|
| XLogP3 | -0.3 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 0 |
| Exact Mass | 47.000728275 |
| Monoisotopic Mass | 47.000728275 |
| Topological Polar Surface Area | 49.7 |
| Heavy Atom Count | 3 |
| Boiling Point | 320 |
|---|---|
| Melting Point | 271 |
| Solubility | 820g/L |
| LogP | -3.7 |
| Dissociation Constants | Weak acid. pK (25 °C): 3.35 |
NITROUS ACID; Nitrosyl hydroxide; 7782-77-6; HNO2; Kyselina dusite; dioxonitric acid; hydroxidooxidonitrogen; Acid, Nitrous; T2I5UM75DN; hydrogen dioxonitrate(1-); DTXSID7064813; CHEBI:25567; (NO(OH)); NO(OH); RefChem:6071; DTXCID4048014
| Reported hazard statements | H300 (50%), H314 (100%), H318 (100%), H400 (50%) |
|---|
H300 (50%): Fatal if swallowed [Danger Acute toxicity, oral]
H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
nitrosyl hydroxide · CAS 7782-77-6 · HNO2. UNII T2I5UM75DN. Boiling Point: 320; Melting Point: 271; Solubility: 820g/L.
数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。
English page: nitrosyl hydroxide