Name/Chemical formula: high purity nitrogen N2

Packing specifications: 4L, 8L, 40L

Purity (%): 99.999%

High-purity nitrogen filling volume: about 0.4M3, 0.8M3, 5M3

Filling pressure: about 9.5mpa, 9.5mpa, 13.5mpa

CAS No.: 7727-37-9

Molecular weight: 28.013

The high-purity nitrogen is packed in a 40LGB steel bottle, and the pressure is 13.5MPa. It can also be sub-packed or filled according to other specifications of gas cylinders.

Main uses of high-purity nitrogen: production of chemical fertilizers, ammonia, nitric acid and other compounds, inert protective media, refrigerants and coolants for quick-frozen food, cryogenic crushing, etc., epitaxy, diffusion, chemical vapor deposition, ion implantation, plasma in the electronics industry Dry etching, lithography, etc., are also used as standard gas, calibration gas, zero gas, balance gas, etc.

Chemical synthesis

Nitrogen is mainly used to synthesize ammonia. The reaction formula is N2+3H2? 2NH3 (conditions are high pressure, high temperature, and catalyst. The reaction is a reversible reaction) or synthetic fiber (nylon, acrylic), synthetic resin, synthetic rubber and other important raw materials. Nitrogen is a nutrient element and can also be used to make fertilizers. For example: ammonium bicarbonate NH4HCO3, ammonium chloride NH4Cl, ammonium nitrate NH4NO3 and so on.

Car tires filled with nitrogen

Nitrogen is almost an inert diatomic gas with extremely inactive chemical properties. The gas molecules are larger than oxygen molecules, are not easy to expand and contract with heat, and have a small deformation range. The rate of penetration of the tire wall is about 30-40% slower than that of air, and it can maintain Stabilize tire pressure, improve tire driving stability, and ensure driving comfort; the audio conductivity of nitrogen is low, equivalent to 1/5 of ordinary air. Using nitrogen can effectively reduce tire noise and improve driving quietness.

High-purity nitrogen is a colorless, odorless and odorless gas under normal conditions, and is usually non-toxic. Nitrogen accounts for 78.12% (volume fraction) of the total atmosphere and is the main component of air. It is a gas at room temperature. When cooled to -195.8°C under standard atmospheric pressure, it becomes a colorless liquid. When cooled to -209.86°C, liquid nitrogen becomes a snow-like solid. Nitrogen is chemically stable, and it is difficult to react with other substances at room temperature, but it can chemically change with certain substances under high temperature and high energy conditions to produce new substances useful to humans.