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Pumping Phosphoric Acid

Phosphoric acid, scientifically known as "Orthophosphoric acid," is a potent inorganic acid renowned for its diverse applications. AxFlow stands as a beacon of expertise, providing tailored solutions for a myriad of challenging pumping scenarios.

Challenges and Safe Handling

Phosphoric acid, scientifically termed "Orthophosphoric acid," is a moderately strong inorganic acid with reducing properties. Its specific gravity varies between 1.3 to 1.95 based on concentration, making it a corrosive substance. Handling phosphoric acid demands utmost care due to its highly corrosive nature, posing risks to both equipment and personnel. At AxFlow, we understand the complexities involved in pumping phosphoric acid and provide solutions tailored for its safe handling.

Characteristics of Phosphoric Acid

  • Moderate Strength: Phosphoric acid is moderately strong but can exhibit powerful reducing properties, making it challenging to handle without proper material selection.
  • Corrosive Nature: The acid is highly corrosive, necessitating pump materials that can withstand its corrosive effects without degradation.
  • Specific Gravity: Phosphoric acid's specific gravity varies, affecting the weight and pressure exerted on the pump components.

Challenges in Pumping Phosphoric Acid

  • Material Compatibility: Selecting materials resistant to phosphoric acid's corrosive effects is critical. Pump components must be made from compatible materials like specialized polymers or plastics to prevent degradation.
  • Specific Gravity Consideration: The varying specific gravity of phosphoric acid demands pump designs capable of handling different weight loads without overloading the motor or the coupling system.
  • Safety Protocols: Due to its hazardous nature, safe handling practices and robust safety protocols are essential to prevent accidents and ensure the well-being of personnel.


  • Fertilizer Production: Phosphoric acid is a key ingredient in the production of various fertilizers, contributing to agricultural productivity.
  • Food and Beverage Industry: It finds use as a food additive, serving as an acidulant and flavor enhancer in the food and beverage sector.
  • Rust Removal: Phosphoric acid is utilized for rust removal and metal cleaning, acting as an effective rust converter.

AxFlow's expertise ensures that the challenges associated with pumping phosphoric acid are addressed with precision, guaranteeing the safe and efficient handling of this corrosive substance across diverse industrial applications.

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