Phosphoric Acid 75% (H₃PO₄) is a clear, colorless inorganic acid widely used across industrial processing, water treatment, and fertilizer manufacturing. Known for its excellent acidity control, metal-cleaning capability, and chemical stability, it serves as an effective pH adjuster, rust remover, and phosphate intermediate. Common applications include metal surface treatment, water treatment formulations, and the production of phosphate-based chemicals and fertilizers. Valued for its versatility, consistent performance, and high reactivity, Phosphoric Acid 75% delivers reliable results in demanding industrial environments.
| Property | Specification |
|---|---|
| Product Name | Phosphoric Acid 75% |
| CAS No | 7664-38-2 |
| Chemical Name/Synonyms | Orthophosphoric Acid 75%; H3PO4 75%; Phosphoric Acid Solution |
| Chemical Formula | H₃PO₄ |
| Appearance (Color) | Clear colorless to slightly yellowish syrupy liquid |
| Molecular Weight | 98.00 g/mol |
| HS Code | 2809.20 |
| TSCA Inventory | Active |
More identifiers
| |
| Property | Typical Classification |
|---|---|
| GHS Signal Word | Danger |
| GHS Pictograms | Corrosion (GHS05) |
| UN Number | UN 1805 |
| Proper Shipping Name | Phosphoric acid, solution |
| Transport Hazard Class | 8 |
| Packing Group | III |
| Flash Point | Not applicable |
Typical U.S. classification for this product: label elements under OSHA’s Hazard Communication Standard (29 CFR 1910.1200) and transport under U.S. DOT (49 CFR 172.101), compiled from manufacturers’ safety data sheets and harmonised GHS classifications, checked October 2026. Environmental hazards are shown for information; the OSHA label does not cover them. Classification can differ by supplier, grade and concentration: the supplier’s U.S.-format SDS, sent with your quote, is the governing document.
Provides precise pH control for chemical synthesis and water treatment.
Aggressively dissolves mineral deposits, scale, and rust from metal surfaces.
Acts as a foundational reagent and catalyst in various organic syntheses.
Conditions and etches metal surfaces prior to plating or coating.
Effectively neutralizes alkaline streams in effluent treatment plants.
We find the right Indian manufacturer for your grade, quantity and target price. Around that, use the services you need:
Before we recommend a manufacturer, we check it in five layers: its documents (COA, SDS, certifications), its business license and IEC status with India’s DGFT, its standing with our industry contacts, an in-person visit to the facility, and its export record.
Want proof that the batch matches its COA before it ships? We collect samples at the factory or port and coordinate testing for purity, grade and contaminants at accredited third-party laboratories. Lab fees are passed through at cost.
We coordinate the paperwork (commercial invoice, packing list, certificate of origin, bill of lading, SDS and COA), compliant packaging and labeling, and the freight forwarder, from export clearance in India to customs entry in the U.S., as your one point of contact.
Our American-led team in India can be at a supplier’s site, check its machinery and real capacity, sit in on negotiations and review documents in person, then report back to you directly, with photos and video from the factory floor.
Going the other way? If you make a specialty chemical or industrial product and want to sell it in India, we provide the on-ground presence and industry network to open that market.
Phosphoric acid 1.69% is a dilute solution used for pH control, testing, and laboratory applications.
Trisodium phosphate anhydrous is an alkaline agent used for cleaning, pH control, and water treatment.
Trisodium phosphate crystalline is an alkaline cleaner used for degreasing, pH control, and water treatment.
Consistent quality and international standards.
Bulk availability with on-time delivery.
Flexible packaging options as per requirement.
Technical guidance and dedicated customer support.
