Phosphoric Acid
- CAS Number: 7664-38-2
- Chemical Formula: H3PO4
- MOQ: 1000KG
- Shelf Life: 2 years
- Types: Liquid
- Synonyms: Orthophosphoric Acid, Phosphoric(V) acid, Phosphoric Acid Solution
Product Description
What Is Phosphoric Acid?
Phosphoric Acid (H₃PO₄) is a key inorganic chemical widely used in the production of phosphate-based chemicals, fertilizers, detergents, and cleaning agents.
Phosphoric acid is produced via the wet process, reacting phosphate rock with sulfuric acid, yielding gypsum. For higher purity, the dry process can be used, where phosphorus pentoxide reacts with water. Phosphoric acid plays a critical role in the chemical industry as a precursor to phosphorus compounds and is also used for pH adjustment and corrosion control in various applications.
Related Parameters:
| Items | Standards |
| Assay as(H3PO4) | ≥85.0% |
| Arsenic as As | ≤0.5 ppm |
| Fluoride as F | ≤10 ppm |
| Heavy metals as Pb | ≤5 ppm |
| Reductive Matter as H3PO3 | ≤120 ppm |
| Fe | ≤20 ppm |
| Chlorides | ≤5 ppm |
| Sulfates | ≤0.005% |
| Color(Hazen) | ≤20 |
Recommended Dosage of Phosphoric Acid:
| Applications | Dosage |
| Fertilizer Production | 80%-85% |
| Food and Beverage Industry | 0.2%-0.5% |
| Water Treatment | 1%-5% |
| Chemical Synthesis | 5%-10% |
| Pharmaceuticals | 0.1%-0.5% |
| Metal Cleaning and Etching | 10%-15% |
| Industrial Cleaning | 3%-5% |
Phosphoric Acid Has Wide Range of Uses:
In the fertilizer industry, it’s primarily used to produce phosphate fertilizers like MAP and DAP.
In water treatment, it helps control pH and prevent corrosion. It’s also crucial in chemical manufacturing for producing phosphate salts, detergents, and flame retardants.
In the pharmaceutical industry, it acts as both a stabilizer and a pH regulator, thereby safeguarding the efficacy and maintaining the stability of medications.
Metal cleaning and etching applications involve its use in semiconductor and electronics industries, while it’s employed in industrial cleaning to remove scale and rust from equipment.
User Asked Question:
Q: What distinguishes Phosphoric Acid from Sulfuric Acid?
A: Phosphoric acid is frequently used in fertilizer production, food processing, and water treatment because of its mild acidity and non-corrosive properties. In contrast, sulfuric acid is a much stronger acid, widely utilized in industrial applications such as oil refining, metal processing, and chemical synthesis. While both are highly effective in their respective uses, sulfuric acid is more corrosive and hazardous compared to phosphoric acid.
