NH PHOSPHORIC ACID 85% (FOOD GRADE)

Fix pH Fast. Feed Roots Right.

Keep your hydroponic system balanced and your plants thriving with NH Phosphoric Acid 85%—a food-grade acidifier that lowers pH while delivering bioavailable phosphorus for stronger root development.

Function & Formulation Benefits

NH Phosphoric Acid 85% (Food Grade) is a highly adaptable acidifier designed for a wide range of agricultural and food-related applications. It rapidly adjusts pH in nutrient solutions, making it an essential input not only in hydroponics and greenhouse systems but also in traditional soil-based farming, fertigation setups, and controlled environment agriculture. Its core component—elemental phosphorus—plays a vital role in root development, energy transfer through ATP, and nutrient mobility in plants, supporting vigorous and uniform growth.

Beyond cultivation, this food-grade formulation can be safely used in certain food processing systems that require pH control, including beverage and fermentation production. Its high purity and stable composition make it ideal for industries that demand clean acidifiers free of contaminants. Because it is classified as food grade, it meets strict quality standards required for edible crop production and is compatible with organic farming protocols where approved. NH Phosphoric Acid 85% dissolves cleanly in water, mixes easily in both direct and stock solution dilutions, and does not react negatively with other inputs—making it reliable for both agricultural and industrial users alike.

Dual Purpose

Acidifier + phosphorus source for root zone efficiency

Fast Acting

Rapidly lowers pH in hydroponic and cultivation systems

Precision Product

Clear, stable formulation ideal for stock tanks and direct application

Safe

Safe for food production systems and organic practices

Available in Different Package Sizes

NH Phosphoric Acid (120 mL, 500 mL, 1 Liter, and 4 Liters are all available at Shopee, Lazada, and Tiktok Shops.

NOTE: 35 KG carboy is only available direct from NutriHydro’s website store.

Application & Dosage Instructions

Dilution Methods

To safely and effectively lower the pH of your solution, NH Phosphoric Acid 85% can be applied in two primary ways: direct use or by preparing a stock solution. The method you choose will depend on the size of your system, your level of experience, and whether manual or automated dosing is in place. Each approach offers different advantages for precision, safety, and workflow efficiency.

Note: Dosage will vary depending on water quality and system design. Start with small adjustments and monitor pH closely.

DIRECT USE

Direct Use: NH Phosphoric Acid 85% is very concentrated—just a few drops can drop pH significantly, especially in small tanks. Add only a few drops at a time into the nutrient solution while continuously mixing. Always test pH after each addition to avoid overcorrection. Accidental overdosing is common if users are unfamiliar with acid handling.

STOCK SOLUTION

Stock Solution: Stock solutions (pre-diluted) are preferred in larger or automated systems to ensure consistency and reduce risk. Prepare a concentrated solution (e.g., 1:10 or 1:50 ratio) using clean water in a dedicated container.

SAFETY INSTRUCTIONS

Handling NH Phosphoric Acid 85% requires strict safety precautions due to its highly concentrated and corrosive nature. With an undiluted pH below 0.5, even small spills or skin contact can result in irritation or chemical burns. Because it only takes a few drops to shift pH in small systems, the risk of over-application is high—especially for users new to acid handling. Always approach handling with caution and control.

Always wear acid-resistant gloves, chemical splash goggles, and protective clothing when using this product.
Work in a well-ventilated area and avoid inhaling vapors directly from the container.
Use only dedicated, labeled containers and tools for mixing and storage.
Store securely in a cool, dry location away from children, pets, or unauthorized personnel.
Never mix directly with calcium- or magnesium-based products, as this may cause precipitation and nutrient imbalance.

Safety is non-negotiable. Treat this product with the respect and preparation required of any strong acid to ensure both personal protection and crop integrity.

USE CASES

NH Phosphoric Acid 85% (Food Grade) is trusted by a wide range of users across agriculture, food production, and environmental systems. Its versatility, purity, and high concentration make it suitable for both specialized and general applications:

Commercial Growers: Ideal for large-scale crop production facilities that require consistent pH management across recirculating or drain-to-waste systems.
Greenhouse Systems: Helps maintain tight control over nutrient solution chemistry in controlled environment agriculture, enhancing plant uptake efficiency.
Organic-Certified Systems: Where allowed, this food-grade acid can be used as a pH adjuster that meets organic certification requirements, supporting responsible farming practices.
Soil-Based Farming: Enables targeted correction of irrigation water pH, especially in areas with alkaline water sources.
Food & Beverage Processing: Suitable for regulated pH control in fermentation, flavor adjustment, and preservation stages, subject to food safety standards.
Brewing & Fermentation: Used in small-scale and commercial breweries to fine-tune mash pH and promote enzyme activity during fermentation.
Water Treatment Applications: Useful for pH adjustment in water purification systems and industrial rinse processes.

Whether you are a hydroponic farmer, a traditional soil grower, or a food technologist, NH Phosphoric Acid 85% provides the precision and quality needed for critical pH-sensitive processes.

Why Choose
NH Phosphoric Acid 85%?

Unlike generic acidifiers that may contain impurities or unstable formulations, NH Phosphoric Acid 85% is produced with the quality and consistency required by serious growers and processors. Its food-grade status ensures it meets strict purity standards for use in consumable crop production and regulated manufacturing environments.

This formulation is chemically stable, meaning it won’t precipitate or degrade when stored or mixed properly. That translates to reliable performance in nutrient tanks, stock solutions, and food-grade dosing systems. Because of its high concentration, a little goes a long way—making it cost-effective over time compared to diluted or lower-grade options.

NH Phosphoric Acid 85% is proudly formulated to meet the demands of tropical hydroponics systems, where high humidity and variable water quality make precise pH control even more critical. It is trusted by growers across the Philippines who need safe, efficient, and effective pH management in both soil and soilless setu

Always wear acid-resistant gloves, chemical splash goggles, and protective clothing when using this product.
Work in a well-ventilated area and avoid inhaling vapors directly from the container.
Use only dedicated, labeled containers and tools for mixing and storage.
Store securely in a cool, dry location away from children, pets, or unauthorized personnel.
Never mix directly with calcium- or magnesium-based products, as this may cause precipitation and nutrient imbalance.

“We’ve tried several acidifiers, but only NH’s phosphoric acid gave us both the purity and the peace of mind we needed for our edible crops.”
— Don Fernando Algozo, Alfrea’s Farm, San Pablo Laguna

Dilution Reference Guide
(1% Increments)

Dilution Instruction (click here to read)

Dilution Instructions: This chart is designed to guide users in preparing specific concentrations of NH Phosphoric Acid 85% by diluting it with clean water to achieve a final volume of 1 liter. Whether you’re creating a stock solution for hydroponics or adjusting pH for food-safe applications, this table gives you the exact volume of concentrated acid to measure.

Using the chart, simply find your desired concentration in the first column and follow across to see how much NH Phosphoric Acid 85% to measure. Then, slowly add that amount of NH Phosphoric Acid 85% to a partially filled container of clean water while stirring. Continue adding water until the combined volume of acid and water reaches exactly 1 liter. Always use calibrated measuring equipment to ensure accuracy and safety.

Safety Precautions: Phosphoric acid is a corrosive substance with an undiluted pH below 0.5. It must be handled with proper chemical safety protocols. Exposure to skin or eyes can result in chemical burns, and inhalation of vapors may cause respiratory irritation. Always use acid-resistant gloves, safety goggles, and protective clothing when handling this product.

To prevent thermal hazards, never add water into phosphoric acid. This can trigger an exothermic reaction, releasing heat rapidly and causing the solution to splatter. Always add acid slowly and carefully into water while stirring to dissipate heat safely.

Diluted solutions must be stored in acid-safe, clearly labeled containers and kept out of reach of children, pets, and unauthorized personnel. Be mindful of incompatibilities—especially with calcium or magnesium-based substances, which can cause precipitation.

Use this chart as a reference for safe preparation of working concentrations, but never treat it as a substitute for proper chemical handling training.

Important Safety Reminder: Phosphoric acid is a corrosive substance with an undiluted pH below 0.5. It must be handled with proper chemical safety protocols. Exposure to skin or eyes can result in chemical burns, and inhalation of vapors may cause respiratory irritation. Always use acid-resistant gloves, safety goggles, and protective clothing when handling this product.