Nitrogen is used in large quantities in the chemical industry for blanketing, purging and pressure transfer of flammable chemicals.
High purity nitrogen is used in large quantities by the semiconductor industry as a purge or carrier gas as well as for blanketing equipment such as furnaces when not in production.
Nitrogen is a colorless, odorless, tasteless and non-toxic inert gas. Liquid nitrogen is colorless. The relative density of gas at 21.1℃ and 101.3kPa is 0.967. Nitrogen is not flammable. It can combine with some particularly active metals such as lithium and magnesium to form nitrides, and can also combine with hydrogen, oxygen and other elements at high temperatures. Nitrogen is a simple asphyxiant.
Nitrogen is produced in large quantities at air separation plants which liquefy and subsequently distil air into nitrogen, Oxygen and usually Argon. If very high purity nitrogen is required the nitrogen produced may need to go through a secondary purification process. The lower range of nitrogen purities can also be produced with membrane techniques, and medium to high purities with pressure swing adsorption (PSA) techniques.
High purity nitrogen is used in large quantities by the semiconductor industry as a purge or carrier gas as well as for blanketing equipment such as furnaces when not in production. Nitrogen is also used in the electronic industry for inerting of epitaxial reactors.
Nitrogen is used in mixtures with carbon dioxide for modified atmosphere packaging (MAP) of food stuffs. Liquid nitrogen is used to freeze a wide variety of delicate food, such as hamburgers, strawberries, shrimps etc.
Nitrogen is used extensively, either pure or, more com- only, in a mixture with a reducing gas such as hydrogen ' natural gas, to provide an oxygen free atmosphere during heat treatment of various metals.
Nitrogen is used to fill tires to lower wear and limit the risks of blow-outs.
Liquid nitrogen is used in the nuclear industry, for scientific research.
Liquid nitrogen is used to store biological materials like tissue, cells etc.
Liquid nitrogen is also used for cryo surgery. Liquid nitrogen is used in the area of superconductivity.
High-purity nitrogen is used as protective gas and carrier gas in the manufacture of integrated circuits, semiconductors and electric vacuum devices. In processes such as epitaxy, lithography, cleaning and evaporation, high-purity nitrogen is used as a gas for replacement, drying, storage and transportation. In aerospace technology, liquid hydrogen filling systems must first be replaced with high-purity nitrogen and then with high-purity helium.
Nitrogen generally has three forms: solid, liquid, and gas.
Nitrogen, the chemical formula is N2, the molar mass of the nitrogen atom is 14g/mol, the relative molecular weight is 28, and the nitrogen percentage in atmosphere is 78%.
No. Nitrogen is chemically inactive, and can only react with hydrogen to form ammonia under high temperature, high pressure and catalyst conditions.
Nitrogen poisoning is a type of poisoning symptom caused by nitrogen. Nitrogen itself is non-toxic, but when the nitrogen content in the air is greater than 84% and the oxygen is less than 16%, it can lead to hypoxia asphyxiation. Patients may experience dizziness, chest tightness, rapid heart rate, shortness of breath, unconsciousness, or even coma, convulsions and other symptoms. Extremely high concentrations of nitrogen can cause sudden death.
ProcessThe industrially used ethylene production methods include petroleum hydrocarbon cracking, ethanol catalytic dehydration, coke oven gas separation, etc. Due to the abundance of oil and natural gas resources, large-scale production of ethylene has lo...Learn More
Process1.Chlorohydrination: First pass ethylene and chlorine gas into water to generate 2-chloroethanol, and then react alkali (usually milk of lime) with 2-chloroethanol to generate ethylene oxide. 2.Oxidation: Using air or oxygen with a concentratio...Learn More
ProcessTEOS is obtained by esterification of silicon tetrachloride and ethanol at normal temperature and pressure. TEOS tained by adsorption, distillation and filtration. Jinhong has reached strategic cooperation with major semiconductor companies, an...Learn More
ProcessSilane is produced by the reduction of silicon tetrachloride by metal hydrides such as lithium or calcium aluminum hydride. Silane is produced by treatment of magnesium silicide with hydrochloric acid. GasSilaneCAS No.7803-62-5Purity≥99.9%Learn More
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ProcessOxygen is obtained on a commercial scale by the liquefaction and subsequent distillation of air. For very high purity oxygen it is normally necessary to take the product from an air separation plant through a secondary purification and distillation...Learn More
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ProcessNitrogen is produced in large quantities at air separation plants which liquefy and subsequently distil air into nitrogen, oxygen and usually argon. If very high purity nitrogen is required the nitrogen produced may need to go through a secondary p...Learn More
ProcessCarbon dioxide is recovered from many different sources. It is obtained as an off-gas from fermentation processes, lime-stone kilns, natural CO2 springs, as well as gas streams from chemical and petrochemical operations. Recently, CO2 is also recap...Learn More
ProcessThe most common source of argon is an air separation plant. Air contains approx. 0.93% (vol.) argon. A crude argon stream containing up to 5% oxygen is removed from the main air separation column via a secondary (“side-arm”) column. The crude argon...Learn More
ProcessAmmonia is manufactured by the Haber-Bosch process, consisting of a direct reaction between hydrogen and nitrogen, in the molar proportions 3:1. Ammonia is manufactured by the Haber-Bosch process, consisting of a direct reaction between hydroge...Learn More