Product Description
Phosphoric acid, also known as orthophosphoric acid, is a common inorganic acid classified as a moderately strong acid. In its pure form, it appears as colorless, transparent crystals or a viscous liquid; it is odorless and has a sour taste. Commercially available phosphoric acid is typically a viscous, concentrated solution containing 85% H₃PO₄, which is transparent or slightly tinted. Industrial phosphoric acid is a ternary inorganic acid of moderate strength. It is highly corrosive, stable, and readily soluble in water and ethanol. It is widely used in metal surface rust removal, electroplating and polishing, wastewater treatment, industrial cleaning agents, fertilizer raw materials, food additives (industrial grade, not for human consumption), refractory materials, electronic chemicals, and phosphate synthesis.
For detailed information on the physical and chemical properties of Phosphoric acid, see 【Addition information】
Main Applications
1. Metal Surface Treatment
• Rust removal, phosphating, rust-proof passivation, and phosphating as a primer before coating.
2.Electroplating and Polishing
• Formulation of electroplating solutions, chemical polishing of metals, and additives for aluminum oxidation.
3.Water Treatment Industry
•pH adjustment, corrosion and scale inhibitors, and corrosion control agents for recirculating water systems.
4.Fertilizers and Chemical Raw Materials
• Key raw materials for the production of ammonium phosphate, compound fertilizers, and phosphate-based chemical products.
5.Household Chemicals and Cleaning
• Acidity regulators for formulations of industrial cleaning agents, descaling agents, and detergents.
6.Electronics and Fine Chemicals
• Electronics-grade auxiliary materials, refractory materials, ceramic additives, and acidifying agents for organic synthesis.
GHS Hazard Classification
| Category | Information |
| Metal corrosion products | Category 1 |
| Acute toxicity—oral | Category 4 |
| Skin corrosion/irritation | Category 1/1B |
| Serious eye injury/eye irritation | Category 1 |
| Specific target organ toxicity—single exposure | Category 3 |
| Harm to the aquatic environment | Category 3 |
| Hazard statement | Danger |
Hazard Statement
H290: May cause corrosion of metals
H302: Harmful if swallowed
H314: Causes severe skin burns and eye damage
H318: Causes serious eye damage
H335: May cause respiratory irritation
H402: Harmful to aquatic life
Shipping Information
| Category | Information |
| UN Number | 1805 |
| Proper Shipping Name | PHOSPHORIC ACID, SOLUTION |
| Hazard Class | Class 8 (Corrosives) |
| Packaging Group | II |
| HS Code | 2809.20 |
Packaging Specifications
| Packaging Type | Specification |
| Hdpe | 35 kg, 40 kg, 330 kg, |
| IBC Tote | 1600 kg / IBC |
| ISO Tank | 20-25 MT |
| Small Package | 250mL, 500mL, 1L （Customization） |
Storage Requirements
• Store in a cool, well-ventilated warehouse
• Keep away from sources of ignition and heat; warehouse temperature should not exceed 30°C
• Relative humidity should not exceed 80%
• Packaging must be sealed
• Store separately from flammable materials, alkalis, and reactive metal powders
• Store in acid-resistant containers
• Recommended storage temperature: 5–40°C
Safety Precaution
• Respiratory protection: If dust or fumes are generated, wear appropriate respiratory protection
• Eye protection: Wear safety goggles or a face shield
• Body protection: Wear acid-resistant protective clothing
• Hand protection: Wear acid-resistant gloves
Disclaimer
This product information is for reference only and does not constitute any warranty, guarantee, or legal advice. Before using DMF, users must:
- Carefully read and follow the latest SDS provided with the product;
- Conduct a risk assessment according to actual use and local regulations;
- Implement appropriate safety measures and comply with all applicable hazardous chemical regulations.
We assume no liability for any direct or indirect loss, damage, or injury arising from the use or handling of this product. Users bear full responsibility and risk for its use.
