|Appearance::||Vivid Orange Gas||UN No.::||1067|
|EINECS No.::||233-272-6||CAS No.::||10102-44-0|
|Odor:||Chlorine Like||Other Names::||Nitrogen Dioxide , Nitrogen(IV) Oxide, Deutoxide Of Nitrogen|
|Application::||Vehicle Exhaust, Boiler Emissions||GHS Signal Word:||Danger|
purity plus specialty gases,
purity cylinder gas
Nitrogen dioxide is gaseous substance a brownish red, highly active, also known as hydrogen peroxide.
Nitrogen dioxide plays an important role in the formation of ozone in the process. Nitrogen dioxide artificially generated mainly from the combustion process of the release, such as vehicle exhaust, boiler emissions etc.. One of the causes of acid rain or nitrogen dioxide, a variety of environmental effects caused by diversity, including: the influence of wetland and terrestrial plant species composition between competition and change, reduce visibility, acidification, eutrophication of surface water (due to the water rich in nitrogen and phosphorus nutrient algal blooms caused hypoxia) toxin the increase in water content and harmful to fish and other aquatic organisms.
1. Physical properties
|Molar mass||46.0055 g mol−1|
|Density||1.88 g dm−3|
|Melting point||−11.2 °C (11.8 °F; 261.9 K)|
|Boiling point||21.2 °C (70.2 °F; 294.3 K)|
|Solubility in water||Hydrolyses|
|Solubility||soluble in CCl4, nitric acid, chloroform|
|Vapor pressure||98.80 kPa (at 20 °C)|
|Refractive index(nD)||1.449 (at 20 °C)|
2. Typical technical data (COA)
|Item||Purity index (%)|
|Nitrogen dioxide (NO2)||≥99.9|
|Impurity content (PPM)||Oxygen (O2)||≤5|
Strictly airtight, to provide adequate local exhaust ventilation and comprehensive. Operator must undergo special training, strictly comply with the operating procedures. Recommended operator wear self - absorption filter gas mask (half mask), wear chemical safety glasses, penetrate the gas - gas protective clothing, wear - proof gloves. Away from the fire, heat, smoking is strictly prohibited in the workplace. Keep away from flammable and combustible materials. To prevent leakage of gas into the air in the workplace. Avoid contact with halogen. When handling light light unloading, prevent the cylinder and accessories damaged. Fire fighting equipment and leakage emergency treatment equipment equipped with corresponding variety and quantity.
Store in a cool, ventilated warehouse. Away from the fire, heat source. The temperature should not exceed 30 DEG C. Should be separated from the easy (but) fuel, halogen, food chemicals storage, avoid by all means. The storage area should be equipped with emergency treatment equipment.
Used as an oxidizing agent in chemical reaction and rocket fuel, used as a catalyst in the production of sulfuric acid in nitroso process.
NO2 is used as an intermediate in the manufacturing of nitric acid, as a nitrating agent in manufacturing of chemical explosives, as a polymerization inhibitor for acrylates, and as a flour bleaching agent.
It is also used as an oxidizer in rocket fuel, for example in red fuming nitric acid; it was used in the Titan rockets, to launch Project Gemini, in the maneuvering thrusters of the Space Shuttle, and in unmanned space probes sent to various planets