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Main Product
Nitrogen Oxides
Segment
Refined Products
Main-Family
Refinery Gases
Sub-Family
Gaseous nitrogen compounds
Physical State

Gas

Product
Nitrogen Dioxide
Abbreviation
NO₂
Names
Nitrogen(IV) Oxide; Deutoxide of Nitrogen

Description

Nitrogen dioxide (NO₂) is a reddish-brown, highly reactive, and toxic gas composed of one nitrogen atom and two oxygen atoms, and is one of the principal oxides of nitrogen.

At room temperature, it appears as a pungent, acrid-smelling gas and becomes a yellowish-brown liquid below 21.2 °C.

NO₂ is a strong oxidizing agent, participates in extensive atmospheric and industrial chemical reactions, and is a key precursor in the production of nitric acid as well as in the formation of ground-level ozone and smog.

It is primarily produced by high-temperature combustion processes (such as those in vehicles, power plants, and industrial facilities), and is a major air pollutant regulated due to its harmful effects on respiratory health and its contribution to environmental issues like acid rain and climate change.

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  Product Communicator
Title Date
Identifiers
logo CAS Number
10102-44-0
logo EC Number
233-272-6
logo ECHA InfoCard
100.030.234
logo IUPAC Name
Nitrogen dioxide
logo PubChem ID
3032552
Chemical Data
Molecular Weight (g/mol)
46.005
Boiling Point (°C)
21.15
Melting Point (°C)
-9.3
Sulfur Content (wt%)
0
Specific Gravity
1.88
Crude Data
API Gravity
-56.234042553191486
Country
Product Settings
Default
Status
A
Content provided by
Transaction Name Date
Modified by UserPic   Kokel, Nicolas 7/5/2025 6:58 PM
Added by UserPic   Kokel, Nicolas 7/5/2025 4:49 PM