Nitrogen Dioxide
Nitrogen Dioxide is a highly toxic, oxidizing gas with a reddish-brown color and an irritating odor.
Nitrogen Dioxide
Formula: NO2
CAS No: 10102-44-0
Nitrogen Dioxide (NO2) is a reddish-brown, highly reactive and toxic gas belonging to the family of nitrogen oxides (NOₓ). It is a strong oxidizing agent and plays a critical role in chemical manufacturing and industrial processing.
In controlled environments, nitrogen dioxide is used to drive oxidation and nitration reactions. In semiconductor manufacturing, it is used for the controlled oxidation of silicon, enabling the formation of silicon dioxide layers essential for device fabrication and electrical isolation.
Applications include:
- Intermediate in the production of nitric acid and other nitrogen-based chemicals used in fertilizers, explosives, and industrial synthesis.
- Used as a nitrating and oxidizing agent in chemical manufacturing and organic synthesis.
- Applied in semiconductor processing for controlled oxidation of silicon and formation of SiO2 layers.
- Used in environmental monitoring and calibration gases for air quality measurement systems.
- Utilized in specialty applications including metallurgy, rocket propulsion, and advanced industrial processes.
Material Compatibility
Nitrogen dioxide reacts with moisture to form nitric acid, creating highly corrosive conditions for many metals and materials. Systems must be designed to minimize moisture exposure and utilize compatible materials capable of withstanding oxidizing and acidic environments.
EFC Gases & Advanced Materials supplies high-purity nitrogen dioxide with tight control of moisture and critical impurities, supported by rigorous analytical verification to ensure consistent performance in demanding applications.
Applications
Specifications
Further Specifications
Cylinder Sizes
- Produce nitric acid and nitrogen-based chemicals
- Support nitration and oxidation reactions
- Oxidize silicon for semiconductor processing
- Calibrate air quality and monitoring systems
- Use in metallurgy, propulsion, and specialty processes
| Grade 2.5 | |
|---|---|
| Purity | 99.5% |
| Chemically & Physical Properties | |
|---|---|
| Molecular Weight | 46.006 |
| Valve Outlet | CGA 660 |
| Shipping Information | |
|---|---|
| DOT Name | Nitrogen Dioxide |
| Hazard Class | 2.3 |
| DOT No. | UN 1067 |
| DOT Label | Toxic gas, oxidizer, corrosive |
| CAS No. | 10102-44-0 |
| Cylinder Size | Fill Weight (lb) |
|---|---|
| 0.5L/Lecture Bottle | 1 |
Moisture level guaranteed only when EFC Gases & Advanced Materials prepares the cylinders.
All concentrations are on a mol/mol basis unless otherwise stated. Product sold on the basis of total impurities. Individual impurities may vary slightly.
