Technical Grade Phosphoric Acid 75% — 5 Gallon

Purified technical grade phosphoric acid for pH correction in hydroponic nutrient solutions, drip irrigation systems, and specialty liquid fertilizer mixes. At 75% concentration, this nearly clear, stable acid provides reliable pH reduction while also contributing phosphorus (0-55-0 fertilizer analysis) to your nutrient program. The 5 gallon size is ideal for mid-to-large scale commercial operations running continuous pH dosing programs.

⚠️ HAZARDOUS MATERIAL — Corrosive liquid. Handle with appropriate PPE. Review SDS before use.

Key Features

• 75% H₃PO₄ concentration — technical grade purity, purified by chemical and mechanical methods
• 0-55-0 fertilizer analysis — contributes phosphorus to the nutrient solution while correcting pH
• Nearly clear solution — stable formulation with no precipitates or sediment
• Compatible with all systems — suitable for hydroponic nutrient solutions, drip irrigation, and fertigation injection
• 5 gallon size — best value for regular commercial use; reduces reorder frequency

Applications

• Hydroponic nutrient solution pH adjustment
• Drip irrigation and fertigation pH correction
• Specialty liquid fertilizer mix acidification
• Alkalinity management in irrigation water

Specifications

• Concentration: 75% Phosphoric Acid (H₃PO₄)
• Fertilizer Analysis: 0-55-0
• Grade: Technical, purified
• Container: 5 gallon
• Vendor: Harcros Chemicals
• SKU: PHOS-ACID-5gal
• Weight: 70 lbs

Safety

Always add acid to water — never add water to acid. Wear chemical-resistant gloves, eye protection, and appropriate protective clothing when handling. Keep away from incompatible materials. Review the full SDS before use.