Sulfuric acid and its use

Sulfuric acid is one of the most famous and common chemical compounds. This is Explained primarily by its distinct properties. Its formula is H2SO4. It is a dibasic acid, having a higher oxidation state of sulfur is +6.

Under normal conditions, sulfuric acid is a liquid without smell and color, has an oily properties. It is widely spread in engineering and various industries.

Currently, this agent is one of the most important and most used products of the chemical industry. In the nature of deposits of native sulfur are caught not so often, as a rule, it is found only in compounds with other substances. Now developing production of sulfur from various compounds, including a variety of industrial waste. In some cases, gases of non-ferrous metallurgy can be adapted to produce sulfur and various compounds with it.

Properties

Sulfuric acid adversely affects any organic compounds. She picks up the water very quickly, so fabric and various compounds begin to char. 100% acid is one of the strongest, and the connection does not smoke and does not destroy metals.

Diluted sulfuric acid reacts with all metals except lead. In concentrated form begins to oxidize many elements.

The Use of sulfuric acid

Mainly sulfuric acid is used in the chemical industry, where on its basis, producing nitrogen and phosphate fertilizers, including superphosphate, which is currently considered one of the most common fertilizers. Annually produce several million tons of this substance.

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In Metallurgie H2SO4 is used to check the quality of the products. When the rolled steel may have micro cracks, in order to find them, the item is placed in a lead bath and bullied a 25% acid solution. After that, even the smallest cracks can be seen with the naked eye.

Before applying the electroplating of the metal must first be prepared - cleaned and degreased. Since sulfuric acid reacts with metals, it dissolves a thin layer, and it also removes any traces of dirt. In addition, the metal surface becomes more rough, which is better suited for coating Nickel, chromium or copper coating.

Sulfuric acid is used in processing some ores, also, a significant number required in the petroleum industry where it is used mainly for cleaning various products. It is often used in the chemical industry, which is constantly evolving. The result found more opportunities and methods of application. This substance may be used for the production of lead-acid power sources - various batteries.

Sulfuric acid

The Main raw material for acid serve as sulfur and various compounds based on it. In addition, as already mentioned, is developing the use of industrial wastes for sulfur. The oxidative roasting of sulphide ores, flue gases contain SO2. It is fit for the production of sulfuric acid. Although Russia continues to occupy the leading position of production based on the processing of pyrites, which burned in the ovens. While blowing the air through the burning of pyrites are formed a pair with a high content of SO2. For purification from impurities and other hazardous vapors use electrostatic. Now in production are widely used different ways of getting acid, and many of them are associated with waste processing, although a high proportion of traditional industries.