Fields of application:
1. As the necessary raw material of nitrate and nitrate ester, nitric acid is used to make a series of nitrate nitrogen fertilisers, such as ammonium nitrate, potassium nitrate and so on; it is also used to make nitrate esters or explosives containing nitro.
2. due to the nitric acid at the same time with oxidation and acidity, nitric acid is also used to refine the metal: that is, the first impure metal oxidation into nitrate, exclude impurities and then restore. Nitric acid can make iron passivation and not continue to be corroded. Can also be used to make nitrogen fertiliser, aqua regia, nitrates, nitroglycerine, nitrocellulose, nitrobenzene, picric acid, etc...
3. Glycerol and concentrated nitric acid, concentrated sulfuric acid, will produce nitroglycerin. This is a kind of colourless or yellow transparent oily liquid, is a very unstable substance, will decompose by impact, produce high temperature, at the same time generate a large number of gases. The gas volume suddenly expanded, resulting in a violent explosion. So nitroglycerin is a kind of high explosives.
4. Nitro explosives used in the military is more 2,4,6-trinitrotoluene (TNT). It is made from toluene and concentrated nitric acid and sulfuric acid reaction, is a yellow flake, with high explosive power, stability, hygroscopicity, etc., commonly used as artillery shells, grenades, mines and torpedoes and other explosives, but also can be used for mining and other blasting operations. Organic synthetic raw materials, concentrated nitric acid can be benzene, anthracene, naphthalene and other aromatic compounds nitrification of organic raw materials. Such as nitric acid and sulfuric acid mixed acid (industry commonly used by 30% and benzene reaction, generating nitrobenzene, and then hydrogenated to generate aniline, which is the synthesis of dyes, pharmaceuticals, pesticides intermediates. Manufacture of oxalic acid, crop waste such as corn stalks, bagasse, grain husks, peanut shells and other raw materials and nitric acid reaction, oxalic acid, nitric acid and propylene or ethylene, ethylene glycol can also be manufactured oxalic acid.
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