Sodium Hydrogen Phosphate Formula
Sodium hydrogen phosphate Formula
Sodium Hydrogen Phosphate Formula consists of elements sodium, hydrogen, phosphorus, and oxygen. Sodium is a white, soft, and reactive alkali metal. It is present in group 1 of the periodic table.
Sodium hydrogen phosphate Formula Structure
Sodium Hydrogen Phosphate Formula is an inorganic compound that has the chemical formula Na2HPO4. When it is made into salt, it has a salty “taste.” When it is dried out of water, it has a white colour. When heated into a solid, it has no odour. In its dry form, the chemical reaction is:
2Na + H2PO4—>Na2HPO4
The other names that are used for the chemical reaction of Sodium Hydrogen Phosphate Formula include the Disodium phosphate formula or the Sodium phosphate dibasic formula.
Salt of the phosphoric acid formula is an abbreviation for Sodium Hydrogen Phosphate Formula, Sodium phosphate dibasic formula, and disodium phosphate formula. Sodium Hydrogen Phosphate Formula is more commonly known as the Sodium Hydrogen Phosphate Formula. The molecular or chemical formula of Sodium hydrogen phosphate = Na2HPO4.
Preparation of Sodium hydrogen phosphate
Sodium Hydrogen Phosphate Formula is produced by neutralising phosphoric acid (H3PO4) with sodium hydroxide (NaOH).
H3PO4 + 2NaOH → Na2HPO4 + 2H2O
In the reaction, when one molecule of Phosphoric Acid reacts with 2 molecules of Sodium Hydroxide then it produces one molecule of Sodium Hydrogen Phosphate Formula and 2 molecules of Water.
At the industrial scale, Sodium Hydrogen Phosphate Formula is prepared in two steps,
Dicalcium phosphate (CaHPO₄) is treated with sodium bisulfate (NaHSO4) to give precipitated calcium sulfate (CaSO4).
CaHPO4 + NaHSO4 → NaH2PO4 + CaSO4
In the above-given reaction, when one molecule of Dicalcium Phosphate reacts with one molecule of Sodium Bisulfate then it produces one molecule of Monosodium Phosphate and Calcium Sulfate.
The resultant monosodium phosphate (NaH2PO4) solution is neutralized partially.
NaH2PO4 + NaOH → Na2HPO4 + H2O
In the above-given reaction, when one molecule of Monosodium Phosphate reacts with one molecule of Sodium Hydroxide then it produces one molecule of Sodium Hydrogen Phosphate Formula and 1 molecule of Water.
Properties Of Sodium Hydrogen Phosphate Formula
Sodium Hydrogen Phosphate Formula has an atomic number of 11 and hydrogen has an atomic number equal to one. Phosphorus is a highly reactive nonmetal present in group 15 of the periodic table. Its atomic number is 15 and oxygen has an atomic number equal to 8.
Physical Properties of Sodium hydrogen phosphate
The chemical formula for Sodium hydrogen phosphate is Na2HPO4.
Chemical Properties of Sodium hydrogen phosphate
On heating, Sodium Hydrogen Phosphate Formula gives a useful inorganic compound called tetrasodium pyrophosphate, a white, inorganic, water-soluble solid. Its chemical reaction of it is given below-
2Na2HPO4 → Na4P2O7 + H2O
Uses of Sodium hydrogen phosphate
In its anhydrous form, Sodium Hydrogen Phosphate Formula appears as a white powdery odourless, hygroscopic, and tasteless. Like sulfides, it is soluble in water and insoluble in alcohol. In its hydrated form, Sodium Hydrogen Phosphate Formula appears as a white solid, that is not solid, and would smell of an odourless, nicotic taste.
It was possible to neutralise phosphoric acid (H3PO4) with sodium hydroxide NaOH. At the industrial scale, Sodium Hydrogen Phosphate Formula is prepared with the aid of a special process.
Sample Questions
- Sodium Hydrogen Phosphate Formula is a what kind of compound?
Sodium Hydrogen Phosphate Formula is an ionic compound. For more information, students can visit the Extramarks educational portal.
