phosphoric acid 85%

Phosphoric Acid 85%: A Versatile Industrial-Grade Acid for Food, Agriculture & Industry

Phosphoric Acid 85% is a highly concentrated, colorless, odorless, and viscous liquid that is widely used in various industrial, agricultural, and food applications. Known by its chemical formula H₃PO₄, this form of phosphoric acid contains 85% pure acid by weight and is the most commonly traded grade in the market. Due to its strong corrosive and acidic properties, it plays a vital role in fertilizer production, metal treatment, food processing, and cleaning agents.

Description

🔬 Specifications of Phosphoric Acid 85%

 

Property Specification
Chemical Name Phosphoric Acid
Molecular Formula H₃PO₄
CAS Number 7664-38-2
Purity 85% (by weight)
Appearance Clear, colorless to slightly yellow liquid
Odor Odorless
Molecular Weight 98.00 g/mol
Density (20°C) 1.685 g/cm³
pH (1% solution) ~1.5
Boiling Point 158°C (316°F)
Solubility Completely soluble in water
Packaging 35 kg, 200 kg drums, IBC tanks, bulk tankers
Shelf Life 2 years in tightly sealed containers

🏭 Applications of Phosphoric Acid 85%

1. Fertilizer Production

One of the largest applications of phosphoric acid is in the manufacturing of phosphate-based fertilizers such as monoammonium phosphate (MAP) and diammonium phosphate (DAP), essential for boosting crop productivity.

2. Food and Beverage Industry

In its food-grade form, phosphoric acid is used as an acidity regulator and flavor enhancer in soft drinks, processed foods, and cheese products. It provides a tangy taste and helps preserve food products.

3. Metal Surface Treatment

In metal finishing, phosphoric acid is used to remove rust, clean surfaces, and prepare metal for galvanizing or painting. It also plays a role in the passivation process to protect metals from corrosion.

4. Water Treatment

Phosphoric acid helps in controlling pH and inhibiting scale formation in industrial water systems, making it essential for boiler and cooling tower maintenance.

5. Detergents and Cleaners

It is a key ingredient in acid-based cleaners used for descaling, sanitation, and general industrial cleaning.


✅ Benefits of Phosphoric Acid 85%

  • ✔️ High purity and consistent quality

  • ✔️ Versatile use across multiple industries

  • ✔️ Excellent acidity and corrosion control properties

  • ✔️ Fully water-soluble for easy integration into processes

  • ✔️ Long shelf life with proper storage


⚠️ Safety and Handling

Phosphoric acid 85% is corrosive and requires careful handling:

  • Always wear protective gloves, goggles, and clothing

  • Avoid inhalation or contact with skin and eyes

  • Store in ventilated, cool, and dry areas, away from incompatible substances like strong bases or reactive metals

  • In case of spills, neutralize with an alkaline material and clean up promptly


📌 Conclusion

Phosphoric Acid 85% is a high-performance, multipurpose acid that serves critical functions in agriculture, manufacturing, food processing, and sanitation. With its excellent chemical properties and wide range of applications, it remains an indispensable compound in both commercial and industrial sectors. When handled with care, it offers safe, reliable, and efficient performance.