Nitrite ion (NO2-)
Nitrogen dioxide
CAS: 10102-44-0
Molecular Formula: NO2
Nitrite ion (NO2-) - Names and Identifiers
| Name | Nitrogen dioxide |
| Synonyms | ONO- NO2- Nitrite Nitrite (NO2-) Nitrogen dioxide Nitrite ion (NO2-) nitrous acid, ion(1-) |
| CAS | 10102-44-0 |
| EINECS | 233-272-6 |
| InChI | InChI=1/HNO2/c2-1-3/h(H,2,3)/p-1 |
Nitrite ion (NO2-) - Physico-chemical Properties
| Molecular Formula | NO2 |
| Molar Mass | 46.006 |
Nitrite ion (NO2-) - Nature
Open Data Verified Data
at room temperature is a red-brown toxic gas, irritating. Melting Point -11,2 °c, boiling point 21,2 °c. The relative density was 1. 45 at 20 ℃. Soluble in water, carbon disulfide, alkali. Decomposition begins at temperatures above 150 °c and is complete at 650 °c to nitric oxide and oxygen. React with water to generate nitric acid and nitric oxide; React with concentrated sulfuric acid to generate nitroso sulfuric acid, and react with alkali to generate equimolar nitrate and nitrite. Nitrogen dioxide in the gas phase has a superposition of the role of the formation of nitrogen tetroxide, which is always with dinitrogen tetroxide in equilibrium.
Last Update：2025-06-10 22:55:16
Nitrite ion (NO2-) - Preparation Method
Open Data Verified Data
The intermediate product of nitric acid is prepared by ammonia oxidation of nitrogen dioxide system.
Last Update：2022-01-01 11:06:36
Nitrite ion (NO2-) - Application
Open Data Verified Data
used for nitric acid production, nitrating agent, oxidizing agent, Catalyst, acrylate polymerization inhibitor, etc.
Last Update：2025-08-19 16:24:40
Nitrite ion (NO2-) - Safety
Open Data Verified Data
is a toxic gas. Eye irritation. It has severe irritation and burning effect on respiratory tract, especially deep respiratory tract, which can cause toxic pulmonary edema. The rescue is not timely can cause death. Chronic effects are mainly manifested as neurasthenia syndrome and chronic respiratory tract inflammation. Individual cases of pulmonary fibrosis. In addition, dental erosion may also occur. Maximum allowable concentration in air mg/m3. When the concentration in the air exceeds the standard, must wear a gas mask. Wear work clothes and protective gloves at work. The production equipment is strictly sealed. Provide adequate local and full ventilation. Immediately after contact between the eye and the skin, rinse with water. After inhalation, should immediately move to fresh air, artificial respiration, etc., if necessary. After ingestion, the patient was given plenty of water instead of vomiting. Eye, skin, heart, chest X-ray and pulmonary function tests were performed regularly. See nitrogen tetroxide for packaging and transport. Store in a cool, ventilated warehouse. Keep away from fire and heat source. Storage temperature should not exceed 15 ℃. It should be stored separately from the easy (possibly) fuel, reducing agent and edible chemicals, and mixed storage should not be avoided. Each storage area shall have emergency treatment equipment for leakage. Fire extinguishing method: This product is not flammable. Fire-fighting personnel must wear filter-type gas masks (full face masks) or isolated respirators, and full-body fire-fighting and virus-proof clothing to put out fire in the upward wind direction. Cut off air supply. The container is cooled by spraying water and, if possible, the container is moved from the fire to an open area. Extinguishing agent: dry powder, carbon dioxide. It is prohibited to use water or halogenated hydrocarbon fire extinguishing agent for fire extinguishing.
Last Update：2025-06-10 22:55:16
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