In the national economy and daily life, Nitrogen Gas Machine has a wide range of uses. First of all, the use of its "character lonely" features, we charge it in the light bulb, to prevent oxidation of tungsten wire and slow down the evaporation rate of tungsten wire to extend the life of the lamp. It can also be used to replace the inert gas for welding metal when the protective gas.
In the museum, often some valuable and rare painting pages, books kept in a cylinder filled with nitrogen, so that the worm can be suffocated in the nitrogen. The use of nitrogen to make food in the dormant and hypoxic state, slow metabolism, can achieve good pest control, mildew and anti-metamorphic effect, food contamination, management is relatively simple, the cost is not high, so in recent years, progress faster. At present, Japan and Italy and other countries have entered the stage of small-scale production test. In recent years. Many areas of our country also use nitrogen to save food, called "vacuum nitrogen storage grain", can also be used to save fruit and other agricultural and sideline products.
The use of liquid nitrogen to the scalpel cooling, it becomes a "cold knife." Doctors with "cold knife" surgery, can reduce bleeding or no bleeding, the patient can recover faster after surgery. The use of liquid nitrogen for the treatment of skin diseases, the effect is also very good. This is because the liquid nitrogen gasification temperature is -195.8 ℃, therefore, used to treat superficial skin disease is often very easy to make the lesion at the skin necrosis, fall off. In the past dermatology often "dry ice" treatment of hemangioma, although the same intention, but the cold far less than liquid nitrogen. Treatment of tuberculosis, "artificial pneumothorax", but also the nitrogen (or air) into the thoracic cavity of patients with tuberculosis, compressed lesions of the lobe, it is rest.
Now, people also use liquid nitrogen to produce low temperature, to save the sperm of the improved livestock, storage and transportation, thawed and then used for artificial insemination. Such as the Guangxi Provincial Fisheries Research Institute of liquid nitrogen storage salamander fish semen, was successful. Nitrogen or an important chemical raw materials, Nitrogen Machine can be used to produce a variety of fertilizer, explosives and so on.
Nitrogen is "the foundation of life", it is not only the raw material for the production of chlorophyll crops, but also the raw material for the production of protein by crops. According to statistics, crops around the world, within a year, from the soil intake of more than 40 million tons of nitrogen The
Scientists have great hope for nitrogen, they think; Rhizobium has a set of wonderful method, can be directly in the air to capture nitrogen into nitrogen. Because it has a nitrogenase in the body, this enzyme is to capture the nitrogen experts, if we can use chemical methods to manually synthesize a large number of ammonia bacteria, would not easily change the nitrogen nitrogen fertilizer it?
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