Description

Nitrogen CAS NO 7727-37-9 is an inert, diatomic gas that constitutes the majority of Earth's atmosphere. Its chemical inertness and physical properties make it an indispensable industrial gas for creating controlled, oxygen-free environments. This product is essential for a wide range of industries, including electronics manufacturing, food and beverage packaging, pharmaceuticals, and metal processing, where it is used for purging, blanketing, and inerting to prevent oxidation, spoilage, and fire hazards.

Application

• Inerting & Blanketing: Used to purge oxygen from tanks, vessels, and pipelines in chemical, petrochemical, and oil & gas industries to prevent fire, explosion, and product degradation.
• Food & Beverage Preservation: Employed in Modified Atmosphere Packaging (MAP) to displace oxygen, extending the shelf life of snacks, dairy products, coffee, and beverages.
• Electronics Manufacturing: Serves as a carrier and purge gas in semiconductor fabrication, soldering, and LED production to prevent oxidation during high-temperature processes.
• Pharmaceuticals & Biotechnology: Provides an inert atmosphere for sensitive reactions, lyophilization (freeze-drying), and the storage of oxygen-sensitive APIs and biological materials.
• Metal Processing: Used in heat treatment furnaces (e.g., annealing, sintering) and laser cutting to prevent oxidation and scaling of metals like steel and aluminum.
• Analytical Chemistry: Functions as a carrier gas in Gas Chromatography (GC) and as a purge gas for sensitive laboratory instruments.
• Tire Inflation: Used to fill aircraft and high-performance vehicle tires due to its stable pressure properties and lack of moisture.
• Cryogenic Applications: In its liquid state, it provides ultra-low temperatures for freezing, biological sample preservation, and superconductivity cooling.

Basic Information

Product Name	Nitrogen
CAS No.	7727-37-9
Molecular Formula	N₂
Molecular Weight	28.01 g/mol
Synonyms	Dinitrogen; Nitrogen gas; Molecular nitrogen; LN2 (Liquid Nitrogen); UN1066 (Compressed); UN1977 (Refrigerated liquid); Azote; E941
EINECS	231-783-9

Quality Control

Our Nitrogen is produced and tested to meet stringent industry standards for purity and consistency. We offer various grades, including Industrial, High Purity, and Ultra-High Purity, each with defined specifications for oxygen, moisture, and hydrocarbon content. Certificates of Analysis (COA) are provided with every shipment to ensure traceability and compliance with your specific application requirements.

Storage

Compressed nitrogen gas cylinders should be stored upright in a well-ventilated, cool, dry, and fire-resistant area, secured to prevent falling. Keep away from heat sources, open flames, and combustible materials. Store separately from oxidizing gases. Liquid nitrogen must be stored in approved cryogenic containers (Dewars) with pressure relief devices in well-ventilated areas to prevent oxygen depletion. Protect containers from physical damage.

Specification

Item	Specification
State	Gaseous (Compressed) / Liquid (Cryogenic)
Appearance	Colorless, odorless gas
Purity (High Purity Grade)	≥ 99.999% (5.0 Grade)
Oxygen (O₂)	≤ 2 ppmv
Moisture (H₂O)	≤ 3 ppmv
Total Hydrocarbons (as CH₄)	≤ 1 ppmv
Carbon Dioxide (CO₂)	≤ 1 ppmv
Carbon Monoxide (CO)	≤ 1 ppmv

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.