Product Overview

ACS Grade Phosphoric Acid 85% delivers superior analytical performance through its high-purity formulation. This professional-grade acid provides exceptional reactivity and precise concentration control, making it the preferred choice for analytical laboratories, research institutions, and quality control operations. Our American Chemical Society compliant formula maintains optimal chemical stability while delivering maximum effectiveness for demanding analytical processes.

Key Properties

• CAS Number: 7664-38-2 (Pure Phosphoric Acid)
• UN Number: UN1805 (Class 8 Corrosive Liquid)
• Specific Gravity: 1.69 at 20°C (68°F)
• H3PO4 Concentration: 85.0 ± 0.5%
• Heavy Metals (as Pb): <5 ppm maximum
• Iron Content: <2 ppm maximum
• Chlorides: <1 ppm maximum
• Sulfates: <5 ppm maximum
• Nitrates: <1 ppm maximum
• Appearance: Clear, colorless liquid

Common Applications

• Professional analytical chemistry and research procedures
• Advanced quality control and method development operations
• Industrial metal surface treatment and phosphating processes
• Professional chemical synthesis and reagent preparation
• Specialized pH standardization and buffer solutions
• Industrial water treatment and scale removal applications
• Professional laboratory calibration procedures
• Trace metal analysis sample preparation protocols

Safety Precautions

CORROSIVE ACID - Professional handling required. Class 8 corrosive liquid requiring proper ventilation systems and secondary containment. Store in temperature-controlled environments below 85°F (29°C). Mandatory PPE includes chemical-resistant gloves (neoprene or rubber, minimum 20 mil thickness), splash-proof chemical goggles, face shield, acid-resistant lab coat or coveralls, and appropriate footwear protection. Work in properly functioning chemical fume hood or ventilated enclosure. Ensure proper chemical segregation from bases and reactive metals. Install emergency eyewash stations and safety showers in handling areas. Follow all OSHA regulations for handling mineral acids and maintain proper pH monitoring systems. Utilize only compatible materials for transfer and storage including glass, HDPE, or appropriate acid-resistant containers and equipment.

Benefits

Our premium ACS Grade Phosphoric Acid sets the analytical standard through its enhanced purity formulation, delivering unprecedented performance in demanding laboratory applications. This professional-grade reagent achieves maximum accuracy while maintaining precise concentration control, dramatically improving analytical reliability and experimental reproducibility. Every batch undergoes rigorous quality control testing including titrimetric analysis, trace metals verification, and anion contamination screening, ensuring consistent, reliable performance across all laboratory applications. The optimized purification process excels in providing ultra-low metal and anion content while delivering exceptional lot-to-lot consistency compared to standard technical grades. Our advanced packaging protocols utilize ACS-specified containers with certified quality seals, guaranteeing reagent integrity from manufacturing to end use. Trusted by analytical laboratories, research institutions, and quality control facilities nationwide for its superior purity and reliable analytical results.