Pyrophosphoric Acid Formula

Hydrogen is a chemical element with the symbol H. Its atomic number is 1. It is colourless, odourless, tasteless, non-toxic, and combustible. It is the lightest element under standard conditions hydrogen is a gas. It is the most abundant element in the universe. Each atom of hydrogen has only one proton. It is a clean fuel. It is an energy carrier that can be used for a broad range of applications.

Phosphorus

Phosphorus is a chemical element with the symbol P. It’s atomic number is 15 and it’s electronic configuration is 1s² 2s² 2p⁶ 3s²3p³. Elemental phosphorus exists in two forms white phosphorus and red phosphorus. It is a very widely distributed element. It is an essential mineral it is naturally present in many foods and available as a dietary supplement.

Oxygen

Oxygen is a chemical element with the symbol O atomic number 8 and its electronic configuration is 1s² 2s² 2p⁴. It is a member of the chalcogen group on the periodic table. It is a colourless, odourless, tasteless gas essential to living organisms. It is the most abundant element in the earth’s crust. It is a reactive element that is found in water, in most rocks and minerals and in numerous organic compounds.

Pyrophosphoric Acid

Pyrophosphoric acid is an inorganic compound with the formula H₄P₂O₇. It is also known as diphosphoric acid. It is a colourless and orderless compound this compound is soluble in water, ethyl alcohol and diethyl ether. It is an anhydride of acrylic phosphorus acid and is a chemical substance. It is used as a catalyst and in organic chemical manufacture. It is formed by the union of 1 molecule of phosphorus pentoxide with two molecules of water. It has been invented by Mr. Clarke of Glasgow in the year 1827.

Structure Of Pyrophosphoric Acid

Pyrophosphoric Acid is an acyclic phosphorus acid anhydride obtained by condensation of two molecules of phosphoric acid. The structural formula of Pyrophosphoric Acid is shown in the figure below:

Pyrophosphoric Acid Structure

From the structure, it is clearly seen that two phosphates interact with four hydroxyl groups, which can donate protons in an aqueous solution.

Preparation Of Pyrophosphoric Acid

• Pyrophosphoric Acid is formed from phosphoric acid.

2 H₃PO₄ ——> H₂O + H₄P₂O₇

• Phosphorus Pentoxide reacts in water to give Pyrophosphoric Acid.

2 H₂O + P₂O₅ ——> H₄P₂O₇

• Phosphorus Acid reacts with phosphorus pentoxide to form Pyrophosphoric Acid.

4 H₃PO₄ + P₂O₅ ——–> 3 H₄P₂O₇

• Pyrophosphoric Acid can be prepared by the reaction of phosphoric acid with phosphoryl chloride

5 H₃PO₄ + POCl₃ ——> 3 H₄P₂O₇ + 3 HCl

Physical Properties

• Pyrophosphoric Acid’s molecular weight is 177.98 g/mol.
• Its melting point is 71.5^οC.
• It is soluble in water.

Chemical Properties

• It reacts with sodium hydroxide to form water and trisodium diphosphate

3 NaOH + H₄P₂O₇ ——-> 3 H₂O + Na₃HP₂O₇

• Pyrophosphoric Acid reacts in water to form phosphoric acid

H₂O + H₄P₂O₇ —–>2 H₃PO₄

• Pyrophosphoric Acid reacts with sodium hydroxide to form tetrasodium diphosphate and water

3 NaOH + H₄P₂O₇ ——> 3 H₂O + Na₃HP₂O₇

Uses Of Pyrophosphoric Acid

• Pyrophosphoric acid is used as an electrolyte in fuel cells.
• It is used as an etching solution.
• It is used as a catalyst.
• It is used as an ingredient to prevent iron deficiency.
• It is used as a biochemical energy source.

FAQs on Pyrophosphoric Acid Formula

Question 1: Is pyrophosphoric acid solid?

Answer:

Pyrophosphoric Acid is an inorganic compound. It is also known as diphosphoric acid. The physical state of the chemical compound is defined as solid. Pyrophosphoric acid is a colourless and order-less compound. It is soluble in water.

Question 2: What are the health effects of pyrophosphoric acid?

Answer:

Pyrophosphoric Acid can cause respiratory irritation. It is harmful if swallowed. It can causes burns. Direct eye contact with acid corrosives may produce pain, tears, sensitivity to light and burns. It may cause long-term adverse effects in the aquatic environment and it may cause long-term exposure to respiratory irritants that may result in disease of the airways.

Question 3: What are the uses of phosphorus?

Answer:

Phosphorus is a chemical element with the symbol P. It is essential to all living things. The main function of phosphorus is the formation of bones and teeth. It is used to make fertilizers, rust removers, animal feeds and even dishwasher tablets. It is also needed for the body to make protein for the growth, maintenance and repair of cells and tissues.

Question 4: Is pyrophosphoric acid strong?

Answer:

Pyrophosphoric acid is a medium-strong inorganic acid. Strong acids are 100% ionized in the solution. But weak acids are only slightly ionized. It is a colourless as well as an odourless chemical. It is soluble in water. Pyrophosphoric Acid hydrolysis as do all polyphosphoric acids.

Question 5: What are the uses of Hydrogen?

Answer:

Hydrogen is a chemical element with the symbol H. It is a clean fuel. It is used in the manufacture of ammonia gas which is used to produce fertilizers. It is used in the manufacture of many organic compounds. It can be used in fuel cells to generate electricity and heat.

Question 6: What is the conjugate base of pyrophosphoric acid?

Answer:

The conjugate base of pyrophosphoric acid is phosphorous acid. It is an anhydride of acrylic phosphorus acid and is a chemical substance. pyrophosphoric acid is made up of two phosphoric acid molecules conjugated together. This compound is a conjugate acid.