Specialty Gases

Product Introduction:

English name: Nitrogen

Chemical formula: N2

CAS number: 7727-37-9

Appearance: colorless and odorless gas

Molar mass: 28g/mol

Melting point: -209.8

Density: 0.81 (-196℃)

Boiling point: -195.6

Warning term: Warning

GHS hazard classification: High-pressure gas, compressed gas

Hazard statement: Contains high-pressure gas; may explode when heated

Main uses:

Manufacturing of fertilizers, ammonia, nitric acid and other compounds, inert protective media, refrigerants and coolants for quick-frozen foods, low-temperature crushing, etc., epitaxy, diffusion, chemical vapor deposition, ion implantation, plasma dry etching, photolithography, etc. in the electronics industry, and also used as standard gas, calibration gas, zero point gas, balance gas, etc.

Technical Parameters:

Purity	Impurity content (PPM)	Implementation standard	Packaging	Use
99.50%	O₂≤5000，H₂O dew point -43℃	GB/T3864-2008	Steel cylinder, container, long tube trailer	Nitrogen is used as filling gas for automobile tires Used as bright annealing protective gas for copper tubes High-purity nitrogen is used as carrier gas for chromatographs and other instruments Used as laser gas for laser cutting machines together with high-purity helium and high-purity carbon dioxide Liquid nitrogen is also used as food preservation protective gas Used for synthetic ammonia, synthetic fibers (nylon, acrylic), synthetic resins, synthetic rubber, etc. In the manufacturing of electronic industries such as automation system semiconductors and electronic components, nitrogen is used as protective gas, diluent gas, and carrying gas In the chemical industry, nitrogen is mainly used as protective gas, replacement gas, washing gas, and safety gas Used as protective gas for aluminum products, aluminum profile processing, aluminum thin rolling, etc. Used as protective gas for reflow soldering and wave soldering to improve welding quality Used as protective gas in the production process of float glass to prevent tin bath oxidation
99.99%	O₂≤50，H₂≤10，CO+CO₂+CH₄≤20，H₂O≤15	GB/T8979-2008
99.99%	O₂≤3，H₂≤1，CO+CO₂+CH₄≤3，H₂O≤5	GB/T8979-2008
99.99%	O₂+Ar≤0.1，H₂≤0.1，CO≤0.1,CO₂≤0.1,H2O≤0.5,THC≤0.05	GB/T16944-2009

Technical Standards
Serial Number	Name	Chemical Formula	Purity (%)	Pressure (Mpa)	Filling Volume (m3/kg)	Valve Thread Outlet
1	High Purity Nitrogen	N2	99.999	13.5	5	PX-32|G5/8
2	High Purity Nitrogen	N2	99.999	9.5	0.8	PX-32|G5/8
3	High Purity Nitrogen	N2	99.999	9.5	0.4	PX-32|G5/8

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