How is nitric acid manufactured?
In general, the process for nitric acid manufacture consists of preheating the air, mixing it with ammonia gas, passing it over a platinum catalyst, extracting the heat produced from this reaction by using it to preheat the incoming air and then cooling further, adding secondary air and then absorb- ing the nitrogen …
What is nitric acid used to manufacture?
Nitric acid is used for the production of ammonium nitrate, a major component of fertilizers. It is also used for producing explosives like nitroglycerin and trinitrotoluene (TNT) and for oxidizing metals.
When was nitric acid discovered?
Layman’s explanation: Nitric acid was first discovered in 1648 by a German chemist, Johann Rudolf. However, in 1901 Wilhelm Ostwald developed the Ostwald Process, which became the principle way of producing nitric acid.
Why is air used as a raw material in the manufacture of nitric acid from ammonia?
Following are the reasons, 1. The moisture in air separated by compressor inter coolers and moisture separated it also due in mixing phase the ammonia with moisture is exothermic reaction and temperature goes to higher the mixture is not designed for higher temperature and also hazard risk.
How much nitric acid is produced annually?
Abstract. Nitric acid is a key chemical for many industries. Some 60 million tons are produced annually, of which 80% goes into nitrate production for fertilizers and explosives, the latter principally for mining.
Why is nitric acid used instead of hydrochloric acid?
Nitric acid is used because all nitrate salts are soluble in water. If we use H2SO4 or HCl they will produce sulphate or chloride salts. Some metal sulphates and chlorides are not very soluble in water.
What is the pH of nitric acid?
Nitric acid (HNO3) has a pH level of 1.2 at standard commercial concentration of 68%.
Where is nitric acid found naturally?
Leafy green vegetables like spinach, arugula, kale and cabbage are packed with nitrates, which are converted to nitric oxide in your body ( 26 ).
Does nitric acid dissolve gold?
Aqua regia is a mixture of nitric and hydrochloric acids. It takes its name from its ability to dissolve gold, which is sometimes referred to as the royal metal. As seen in the first equation, a gold alloy of 14 K or lower will dissolve when nitric acid is added.
How nitric acid is produced from ammonia?
In the convertor ammonia is converted into nitric oxide which is then converted into nitrogen dioxide in the oxidation vessel with the help of secondary air. The process water absorbs nitrogen dioxide to form nitric acid in the absorption column. In the fertilizer industry normally 53–55% nitric acid is produced.
Is nitric acid a raw material?
Ammonia, oxygen, water are the raw materials of nitric acid manufacturing. Nitrogen dioxide is dissolved in water.