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liquid nitrogen
發(fā)布時(shí)間:2023-8-8 15:09:34   點(diǎn)擊:次   【打印】【關(guān)閉

Product Name: Industrial Nitrogen | Nitrogen | High Purity Nitrogen

       Chemical formula: N2

       Purity: 99.5% industrial nitrogen; Pure nitrogen 99.99%; High purity nitrogen 99.999%; Ultra pure nitrogen 99.9999%

       Packaging: Bottled, containerized, long tube trailer, etc

       Overview of nitrogen: Nitrogen is a colorless and odorless gas under normal conditions, and is usually non-toxic. Nitrogen accounts for 78.12% (volume fraction) of the total air volume. Under standard conditions, the gas density is 1.25g/L, and nitrogen is difficult to dissolve in water. At room temperature and pressure, only about 0.02 volume of nitrogen is dissolved in 1 volume of water. Nitrogen is a gas that is difficult to liquefy. Nitrogen will liquefy into a colorless liquid at extremely low temperatures, and when the temperature is further lowered, it will form a white crystalline solid. In production, black steel cylinders are usually used to hold nitrogen gas.

       The chemical properties of nitrogen are not active and it is difficult to react with other substances at room temperature. However, under high temperature and high energy conditions, it can undergo chemical changes with certain substances and be used to produce new substances that are useful to humans.

       In the gas industry, black seamless carbon steel cylinders are usually used to hold nitrogen gas, which is divided into pure nitrogen, liquid nitrogen, high-purity nitrogen, and ultra-pure nitrogen according to purity. When used in large quantities, nitrogen gas supply methods such as liquid nitrogen dewar tanks, liquid nitrogen storage tanks, PSA nitrogen generators, membrane separation nitrogen generators, and low-temperature separation nitrogen generators can be selected.

       Industrial nitrogen | Pure nitrogen | High purity nitrogen | Ultra pure nitrogen product introduction:

 

Application of nitrogen:

       Nitrogen gas used as a filling gas for automotive tires

       Bright Annealing Protective Gas for Copper Tube

       High purity nitrogen gas used as carrier gas for chromatographs and other instruments 

       Used as a laser gas for laser cutting machines together with high-purity helium and high-purity carbon dioxide

       Liquid nitrogen is also used as a protective gas for food preservation

       Used for synthesizing ammonia, synthetic fibers (nylon, acrylic), synthetic resins, synthetic rubber, etc

       In the manufacturing of automation systems, semiconductors, electronic components, and other electronic industries, nitrogen is used as protective gas, dilution gas, and carrier gas

       In the chemical industry, nitrogen is mainly used as a protective gas, displacement gas, washing gas, and safety guarantee gas

       Used as a protective gas for aluminum products, aluminum profile processing, aluminum thin rolling, etc

       Used as a protective gas for reflow soldering and wave soldering to improve welding quality

       Used as a protective gas in the production process of float glass to prevent oxidation of tin baths

Precautions:

       High purity nitrogen is a colorless, odorless, non-toxic, and non combustible high-pressure gas stored in gas cylinders. 

       Before use, test the pressure and leakage of the nitrogen pipeline. It is strictly prohibited to leak the liquid nitrogen pipeline, and the operating environment should be kept ventilated. When the nitrogen content in the air increases and the oxygen content is below 19.5%, it may cause suffocation.

       Bottled nitrogen is a high-pressure filling gas that should be depressurized and depressurized by a nitrogen pressure reducer before use. When moving nitrogen cylinders, a cylinder handcart should be used.

      The nitrogen steel cylinders on the packaging have a service life of 5 years, which must be inspected and 30 years must be scrapped. All expired cylinders in liquid nitrogen tanks must be sent to relevant departments for safety inspection before they can continue to be used.

       When using exhaust gas in each bottle of nitrogen, the residual pressure inside the bottle should be kept at 0.5MPa, and the minimum residual pressure should not be lower than 0.25MPa. The bottle valve should be closed,

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