Preparation Of Phosphoric Acid

One of the critical concepts in the field of biochemistry and biogeochemistry is Phosphoric acid. Phosphoric acid also plays an important role in the discipline of Dentistry and Orthodontics. Phosphoric acid is commonly known as Orthophosphoric acid. It is known as a weak acid; in addition to being a tribasic acid. The acid has four elements: an oxygen atom, three elements of the hydrogen atom, and an element of a phosphorus atom. Here, the elements of the hydrogen atom are acidic in nature.

This acid can be commonly found in bones and teeth, which helps in the process of metabolism. When used in a liquid form, the acid is seen as a colourless and clear solution. When used as a solid form, the acid can be found as a crystalline and transparent solid. 

Let us look at the procedure of the preparation of the Phosphoric Acid equation.

Production of the Equation

The production of Phosphoric Acid equation takes place in two ways. Let us look at these two procedures of the production of Phosphoric Acid equation.

• Thermal procedure: The thermal procedure takes place and produces an intensely pure and concentrated element; however, this procedure is comparatively more intensive, concerning the energy factor. The thermal procedure uses air and phosphorus as the raw materials for the production of Phosphoric Acid equation.In the first stage, the atoms of phosphorus are sprayed in the furnace- after it is burnt at about 3000-1800K in the air. 

P4 (l) + 5O2 (g) = 2P2O5 (g)

Then, the production from the above equation is passed through a hydration tower. In this stage, the element of phosphorus oxide is absorbed, with respect to phosphoric acid. The resulting equation is-

P2O5 (g) + 3H2O (l) = 2H3PO4 (l)

The phosphorus element might get burnt in the dried air. The phosphoric pentoxide is condensed into a white powder, which is hydrated separately into Phosphoric acid. The procedure accepts heating to be reused and recovered. 

• Wet Procedure: Fluorapatite is the precursor from which Phosphoric acid is produced. This Fluorapatite is known as the Phosphate rock along with a concentration of sulphuric acid- approximately 93 percent- in a set of stirred reactors. This combination results in Calcium Sulphate and Phosphoric acid, along with some impurities which are insoluble in nature. The reaction takes place in a chronology of reactions that consists of Calcium Dihydrogenphosphate. The resulting equation is as follows-

C3 (PO4)2 (s) + 3H2SO4 (l) = 2H3PO4 (l) + 3CaSO4 (s)

This reaction has several side reactions too. Compared to the thermal procedure of the production of Phosphoric Acid equation, the results in the wet procedure are impure. However, this reaction might not require further purification processes. It can also be steamed into a solution known as Superphosphoric acid, which is used as a fluid fertiliser directly. 

As we have seen both the wet and thermal procedure for the production of Phosphoric Acid equation, let us look at the phosphoric acid formula. 

The formula for Phosphoric Acid

As we know Phosphorus is a crucial element, which helps in plant nourishment and is usually taken by the roots of the plant. Hence, we can assume that Phosphoric acid is an important corrosive. The fertilisers used for the rectification of the deficiencies of Phosphorus in the soil particles are eventually dependent on the availability of Phosphoric acids. 

From the above discussion on the procedure for the production of Phosphoric Acid equation, we can conclude that the phosphoric acid equation is-

H3PO4

Some of the physical properties are-

• Point of Boiling: 158° C
• Point of Melting: 42.3° C
• Molar Mass: 97.99 g/mol

Conclusion

Phosphorus is a crucial element, which helps in plant nourishment and is usually taken by the roots of the plant. Hence, we can assume that Phosphoric acid is an important corrosive. One of the critical and important concepts in the field of biochemistry and biogeochemistry is Phosphoric acid. Phosphoric acid also plays an important role in the discipline of Dentistry and Orthodontics. Phosphoric acid is commonly known as Orthophosphoric acid. The production of Phosphoric Acid equation takes place in two ways- Wet procedure and Thermal Procedure. The phosphoric acid equation is H3PO4