Product Overview

Nitrogen Dioxide CAS 10102-44-0 (NO₂) is a significant industrial chemical and a major atmospheric pollutant. It is a reddish-brown, toxic gas with a pungent, acrid odor at room temperature. As a key intermediate in the industrial production of nitric acid and other nitrogen-containing compounds, nitrogen dioxide plays a vital role in chemical synthesis. However, due to its high reactivity and toxicity, its production, handling, and application require stringent safety controls. The controlled production and precise management of nitrogen dioxide are essential for both its industrial utility and environmental regulation.

Basic Information

CAS No.	10102-44-0
UN No.	UN1067 (Nitrogen dioxide)
Molecular Formula	NO₂

Key Attributes & Parameters

Purity	Available in commercial grades (typically >98%) and high-purity grades for specialized applications.
Physical State	Reddish-brown gas at room temperature and pressure; condenses to a brown liquid below 21.2°C (70.2°F). Often handled and shipped as a liquefied compressed gas.
Odor	Sharp, pungent, acrid odor.
Key Hazards	Highly toxic by inhalation, strong oxidizer, corrosive, and reacts violently with many organic materials and reducing agents.

Features & Advantages

Potent Oxidizing Agent

Serves as a powerful and controllable oxidizing agent in various chemical reactions.

Critical Chemical Intermediate

A fundamental building block in the synthesis of nitric acid, nitrates, nitrites, and other important industrial chemicals.

High Reactivity

Its reactivity makes it useful for specific nitration and oxidation processes where other agents are less effective.

Controllable Precursor

Can be generated and used on-site in certain processes, offering operational flexibility in specific industrial contexts.

Functional Characteristics

As a strong oxidizer, Nitrogen Dioxide CAS 10102-44-0 readily participates in chemical reactions, often releasing oxygen. It dimerizes into dinitrogen tetroxide (N₂O₄) at lower temperatures, a property that influences its behavior in storage and reactions. Industrially, it is primarily produced by the oxidation of nitric oxide (NO). Its main functional roles are as an intermediate in the Ostwald process for nitric acid manufacture and as a specialized oxidizing/nitrating agent. It requires storage in corrosion-resistant containers under controlled pressure and temperature conditions to maintain stability.

Primary Application Fields

Chemical Manufacturing

The primary application is as an intermediate in the production of nitric acid (HNO₃), which is a cornerstone for fertilizers (ammonium nitrate), explosives, and various organic chemicals.

Rocket Propulsion

Used as a liquid oxidizer in some hypergolic rocket fuel systems due to its reactivity with certain fuels.

Specialty Nitration & Oxidation

Employed as a selective nitrating or oxidizing agent in the synthesis of certain pharmaceuticals, dyes, and specialty chemicals.

Laboratory & Research

Used as a reagent in research settings for studying atmospheric chemistry, reaction kinetics, and material corrosion.

Customer Collaboration Case

We partnered with a specialty chemical manufacturer developing a novel high-performance polymer. Their synthesis required a controlled, high-purity nitration step that conventional nitric acid/sulfuric acid mixtures could not achieve with the required selectivity and yield. They required a consistent supply of high-purity nitrogen dioxide as a key reagent. We provided a dedicated supply of ultra-high-purity NO₂ in specially passivated cylinders to prevent decomposition and contamination. Our technical team worked closely with theirs to design a safe, closed-loop delivery and reaction system. The precise reactivity of the supplied nitrogen dioxide enabled the desired nitration reaction to proceed cleanly, resulting in a higher-purity polymer intermediate and significantly improving their overall process yield and product quality. This collaboration demonstrated how a controlled, high-quality supply of nitrogen dioxide can be a critical enabler for advanced chemical synthesis.

FAQ

Q: What are the differences in the division of document responsibilities under different trade terms (FOB, CIF, CFR)?

A: FOB (Free On Board): We are responsible for providing basic documents such as commercial invoices, packing lists, and origin certificates, while the customer is responsible for providing the bill of lading and insurance policy; CIF (Cost and Insurance FOB): We are responsible for providing all the documents (including the bill of lading and insurance policy), and bear the transportation and insurance costs; CFR (Cost and Freight): We are responsible for providing the bill of lading and basic documents, and bear the transportation costs, while the customer is responsible for insuring and providing the insurance policy. Our company will clearly define the document responsibilities based on the trade terms to ensure that the documents are complete and in compliance with the requirements.

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