What are the uses of sulfur trioxide?

Answer 1

Its primary use is in the Contact Process (making Sulphuric Acid).

This can be done directly by reacting Sulphur Trioxide with Water to form dilute, but highly corrosive, Sulphuric Acid:

SO3(g) + H2O(l) = H2SO4(aq)

It can also be achieved indirectly by adding Sulphur Trioxide to Sulphuric Acid to form Disulphuric Acid (Pyrosulphuric Acid, Fuming Sulphuric Acid or Oleum) then Reacting Disulphuric Acid with Water to Form Concentrated Sulphuric Acid:

SO3(g) + H2SO4(l) = H2S207(l)

H2S2O7(l) + H20(l) = 2H2SO4(l)

Answer 2

Sulphur trioxide is used to make sulphuric acid.

The gas SO3 is dissolved in sulphuric acid to ,make oleum ( fuming sulphuric acid) .

Oleum is then dissolved in water to make sulphuric acid.

It is done by this method to prevent heat generation and acid spitting.

SO3 + H2SO4 = H2S2O7(Oleum)

H2S2O7 + H2O = 2H2SO4

Oleum(fuming sulphuric acid) is very nasty stuff. !!!!!! It must be very carefully handled in a factory .

Answer 3

Sulfur trioxide is primarily used in the production of sulfuric acid, which is a key component in various industries such as fertilizers, batteries, and chemical manufacturing. It is also used in the production of detergents, explosives, and pharmaceuticals. Additionally, sulfur trioxide can act as a catalyst in certain chemical reactions.

Answer 4

Sulfur is used in gunpowder, fireworks, fertilizer, refrigeration, paper manufacturing and animal feed. :)