Readers ask: How Sulphuric Acid Is Prepared?

How is H2SO4 prepared by contact process?

Manufacture of H2SO4 by contact process involves three steps: Burning of sulphur in air to generate SO2. Conversion of SO2 to SO3 by oxidation with air in the presence of V2O5 as catalyst. Absorption of SO3 in H2SO4 to obtain oleum H2S2O7. A flow diagram for the manufacture of H2SO4 is given below:

How is Sulphuric acid prepared by constant process explain in short?

How Sulphuric acid is produced? Sulphuric acid is produced from sulphur. In the presence of air, sulphur dioxide is first obtained by burning the molten sulphur. In the presence of a catalyst for vanadium pentoxide, sulphur dioxide is then converted to sulphur trioxide.

Why is it called contact process?

1 Answer. According to this site: The Hot gases( SO2 ) evolved from burning of sulfur ore comes in contact with catalyst bed, So the name of this process is called contact process.

Why is Sulphuric acid viscous?

Because it is made up of minerals,it’s a mineral acid And it ionises completely when dissolved in water and gives a higher concentration of aq. H+ ions. That’s why it’s oily and viscous..

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Is used to prepare Sulphuric acid?

Sulfuric acid is prepared industrially by the reaction of water with sulfur trioxide (see sulfur oxide), which in turn is made by chemical combination of sulfur dioxide and oxygen either by the contact process or the chamber process.

Why H2SO4 is used in contact process?

The Contact Process: makes sulphur dioxide; converts the sulphur dioxide into sulphur trioxide (the reversible reaction at the heart of the process ); converts the sulphur trioxide into concentrated sulphuric acid.

What catalyst is used in making sulfuric acid?

Adding an excess of oxygen to sulfur dioxide in the presence of the catalyst vanadium pentoxide at 450 °C and 1-2 atm. The sulfur trioxide formed is added to sulfuric acid which gives rise to oleum (disulfuric acid) The oleum is then added to water to form sulfuric acid which is very concentrated.

Is H2SO4 sulfuric acid?

Sulfuric acid is a corrosive acid with the chemical formula H2SO4. It is soluble in water at all concentrations, and is industrially used to produce phosphoric acid. Sulfuric acid is a clear, colorless, odorless liquid that is very caustic.

Who invented H2SO4?

The discovery of sulfuric acid is credited to the 8th century alchemist Jabir ibn Hayyan.

What is sulfuric acid used for?

The major use of sulfuric acid is in the production of fertilizers, e.g., superphosphate of lime and ammonium sulfate. It is widely used in the manufacture of chemicals, e.g., in making hydrochloric acid, nitric acid, sulfate salts, synthetic detergents, dyes and pigments, explosives, and drugs.

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Why H2SO4 is oily and viscous?

Sulfuric acid (H 2SO 4) is capable of forming hydrogen bonds, both with water and other H 2SO 4 molecules. These bonds between molecules decrease overall molecular movement, thereby increasing the viscosity of the solution.

Is H2SO4 reducing agent?

Answer. it is always an oxidizing agent. In H2SO4 sulphur is in +6 oxidation state. So it can’t act as a reducing agent.

Is Sulphuric acid more viscous than water?

Reason:Concentrated Sulphuric acid has a greater effinity for water. Correct explanation: Sulphuric acid is more viscous because of the presence of greater extent of hydrogen bonding in the molecules.

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