Phosphoric Acid: Properties, Uses, and Safety Precautions

Phosphoric Acid: Properties, Uses, and Safety Precautions

13 March 2023

 

Phosphoric acid is a colorless, odorless, and highly acidic chemical compound with the formula H3PO4. It is widely used in various industries, including agriculture, food processing, and pharmaceuticals. This blog post, penned by Palvi FZE, will help you explore the physical and chemical properties, uses, and potential health effects of phosphoric acid.

 

Palvi FZE ranks among the leading Phosphoric Acid suppliers in Kazakhstan that can fulfill all your requirements concerning various chemicals used for a wide range of industrial processes.

 

Properties of Phosphoric Acid:

 

Physical Properties:

 

  • State: Phosphoric acid is a viscous liquid at room temperature. It is soluble in water, and it has a high boiling point of 158 °C (316 °F) and a melting point of 42.35 °C (108.23 °F).

 

  • Density: The density of phosphoric acid varies depending on its concentration. The density of a 85% aqueous solution of phosphoric acid is around 1.7 g/cm³. The density of the concentrated form of phosphoric acid is around 1.88 g/cm³.

 

  • Viscosity: Phosphoric acid has a high viscosity, which means that it flows slowly. Its viscosity increases with increasing concentration.

 

  • Acidity: Phosphoric acid is a triprotic acid, which means that it has three hydrogen atoms that can be ionized in water to release protons. It is a strong acid, with a pKa1 of 2.15, a pKa2 of 7.20, and a pKa3 of 12.35.

 

  • Color and odor: Phosphoric acid is a colorless liquid with no discernible odor.

 

  • Reactivity: Phosphoric acid is a highly reactive chemical compound that can react with many other substances. It reacts with metals to produce hydrogen gas, with bases to form salts, and with alcohols to form esters.

 

  • Hygroscopicity: Phosphoric acid is hygroscopic, which means that it can absorb water from the air. This property makes it difficult to handle and store, as it can form crystals and solidify over time.

 

Chemical Properties:

 

  • Acidic nature: Phosphoric acid is a triprotic acid, meaning it can donate three protons (H+) to a base in aqueous solution. This makes it a strong acid with a high acidity. The acidic nature of phosphoric acid makes it useful in many applications, including in the production of fertilizers and in the food and beverage industry.

 

  • Reactivity: Phosphoric acid is a reactive compound that can react with many other chemicals. It reacts with metals to produce hydrogen gas and metal phosphates. It can also react with alcohols to form esters and with bases to form salts. The reactivity of phosphoric acid is useful in many chemical reactions.

 

  • Dehydrating agent: Phosphoric acid is a dehydrating agent, meaning it can remove water from other substances. This property makes it useful in many industrial applications, including in the production of detergents, fertilizers, and food additives. It is also used as a dehydrating agent in the laboratory.

 

  • Oxidizing agent: Phosphoric acid is also an oxidizing agent, meaning it can accept electrons from other substances. This property makes it useful in many chemical reactions, including in the production of fertilizers and in the production of synthetic fibers.

 

  • Polymerization: Phosphoric acid can also act as a polymerization catalyst, meaning it can facilitate the formation of polymers from monomers. This property makes it useful in many applications, including in the production of plastics and synthetic fibers.

 

  • Stability: Phosphoric acid is a stable compound that does not decompose easily. It can be stored for long periods without significant degradation or loss of potency.

 

  • Corrosive: Phosphoric acid is highly corrosive and can cause severe burns if it comes into contact with skin or eyes. It should be handled with care and stored in a safe manner.

 

Palvi FZE stands apart from other Phosphoric Acid exporters in Kazakhstan in terms of supplying quality industrial chemicals.

 

Uses:

 

Phosphoric acid has a wide range of applications in various industries. Some of the major uses of phosphoric acid are:

 

  • Fertilizer production: Phosphoric acid is a key ingredient in the production of fertilizers, particularly those that contain phosphorus. It is used to convert phosphate rocks into water-soluble phosphate fertilizers.

 

  • Food and beverage production: Phosphoric acid is used as a food additive to add a tangy or sour taste to beverages, including colas and other carbonated drinks. It is also used in the production of cheese and other dairy products.

 

  • Industrial cleaning: Phosphoric acid is an effective industrial cleaner and is used to remove rust and scale from metal surfaces.

 

  • Pharmaceuticals: Phosphoric acid is used as a reagent in the production of certain pharmaceuticals, including antibiotics and antiviral drugs.

 

  • Water treatment: Phosphoric acid is used in water treatment to reduce the pH of water and to control the growth of algae and bacteria.

 

If you are looking for an excellent Phosphoric Acid distributor in Kazakhstan, look no further than Palvi FZE.