Phosphoric Acid, ACS Grade, SEMI Grade, Reagent Grade – H₃PO₄ | CAS 7664-38-2

Product Overview

Phosphoric acid is a colorless, odorless, and moderately strong inorganic acid. It is most commonly encountered as an 85% aqueous solution and plays a central role in both industrial and biological chemistry. The molecule consists of a phosphorus atom bonded to one oxo group and three hydroxyl groups, giving it high solubility in water and allowing it to function as a tribasic acid. It is widely used as a solvent, a pH control agent, and a processing aid across multiple sectors, including fertilizer production, food and beverage, and pharmaceuticals. Its relative safety compared to other strong acids makes it a practical choice for controlled acidity applications.

Key Industries

• Chemical Manufacturing – Raw material for phosphate salts and industrial chemicals
• Food & Beverage – Used as a food additive (E338) and acidity regulator
• Pharmaceuticals – Utilized in cleaning, buffering, and formulation processes
• Fertilizer Production – Precursor in the production of various phosphate fertilizers
• Textile & Leather Processing – Employed in softening, dye fixation, and tanning
• Cleaning Products – Found in metal cleaners, descalers, and industrial detergents
• Water Treatment – Used to adjust pH and control scaling in cooling and boiler systems
• Metallurgy – Functions in surface cleaning and metal treatment baths
• Laboratory & Research – Commonly used in preparation of reagents and buffer systems

Packaging Options

This product is available in a variety of packaging sizes to meet both small-scale laboratory and large-scale industrial needs. Custom volumes and container types are available upon request, ensuring flexibility for your application and storage requirements.