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Phosphoric Acid (85%)

High-purity 85% phosphoric acid used in food processing, manufacturing, and water treatment applications throughout East Africa.

Phosphoric Acid (85%) is an essential chemical widely utilized across the food processing, agriculture, water treatment, and industrial manufacturing sectors.

Packaging

25kg drums, 50kg drums, 200L drums

Supply Region

Kenya, East Africa

Supplier

Zenco Systems Ltd

What is Phosphoric Acid (85%)?

Phosphoric Acid (85%) is an essential chemical widely utilized across the food processing, agriculture, water treatment, and industrial manufacturing sectors. Companies in Kenya, Uganda, and Tanzania depend on its reliable supply for processes that require controlled acidity and phosphate provision. This inorganic acid, chemically represented as H3PO4, is presented as an 85% aqueous solution, making it a highly concentrated and versatile raw material.

Its commercial importance lies in its ability to provide acidity in food and beverage applications, aid in metal surface treatment, and serve as a key component in agricultural fertilisers. Zenco Systems Ltd offers this product with quality assurance and distribution reach across East Africa, ensuring businesses in these regions maintain operational efficiency with consistent supply. Understanding its applications and handling characteristics helps procurement professionals and technical users maximize product benefits safely and effectively.

Phosphoric Acid (85%): Detailed Product Overview

Phosphoric Acid (85%) consists of orthophosphoric acid dissolved in water to a concentration of approximately 85% by weight. The acid is a clear, colorless liquid known for being non-volatile at room temperature, which allows it to be handled safely in controlled industrial environments. Its chemical formula H3PO4 features three acidic protons, contributing to its moderate strength relative to other inorganic acids. This characteristic enables it to act as an acidulant, pH adjuster, and phosphate source.

The acid’s aqueous nature facilitates easy solubility and mixing with other compounds, a critical performance factor when used in detergents, fertilizers, or water treatment chemicals. Phosphoric acid’s ability to chelate metal ions underlies its use in metal surface treatment, enhancing corrosion resistance and preparing metals for subsequent processing steps.

The 85% concentration is a practical balance: high enough to reduce transport volume but dilute enough to maintain manageable viscosity and reactiveness. It is produced industrially by reacting phosphate rock with sulfuric acid, followed by purification steps to meet food-grade or technical-grade specifications depending on end use. Purity levels vary slightly but always comply with regional standards and regulations. Because phosphoric acid is corrosive, packaging and storage require resistant materials such as HDPE drums or lined steel containers.

In summary, Phosphoric Acid (85%) is a chemically stable, readily soluble acid solution with controllable acidity, making it indispensable for applications requiring phosphate input or pH adjustment in East African industrial and agricultural markets.

Applications and Uses of Phosphoric Acid (85%)

Food Processing

Phosphoric Acid (85%) is widely used in food and beverage manufacture as an acidulant, flavor enhancer, and preservative. Its ability to provide a clean tart taste makes it common in soft drinks, jams, and processed foods. It also functions to adjust pH, stabilizing products and inhibiting microbial growth. The acid must meet strict food-grade standards, ensuring safety and regulatory compliance for consumers in East Africa.

Water Treatment

In water treatment plants, phosphoric acid acts to control pH levels and prevent scaling caused by calcium and magnesium ions. It conditions water by binding metal ions, improving the efficiency of filtration and disinfection steps. Usage rates depend on water hardness and flow, requiring precise dosing equipment to maintain balanced water chemistry and reduce maintenance costs.

Detergent Manufacturing

Phosphoric acid is incorporated in detergent formulations to adjust alkalinity and enhance cleaning efficiency. It chelates with minerals in water, preventing precipitation and improving the removal of dirt and stains. Its compatibility with surfactants and builders makes it essential for phosphate-based detergents widely used in industrial and household cleaners.

Metal Treatment

Metalworking industries use phosphoric acid solutions for pickling and rust removal as it removes oxides and cleans metallic surfaces. It also serves as a precursor for phosphate coating chemicals that improve corrosion resistance and paint adhesion. Proper concentration control is vital to avoid over-etching, ensuring optimal surface preparation without damaging the base metal.

Agriculture

Phosphoric acid is an important raw material in producing phosphate fertilizers such as monoammonium phosphate (MAP) and diammonium phosphate (DAP). It supplies phosphorus, a critical nutrient for plant growth. This acid’s predictable concentration and purity help fertilizer manufacturers provide consistent nutrient formulations tailored to East African soil needs.

Looking for alternatives for a specific process? Browse the full Agricultural Chemicals range or ask our technical team which grade fits your application.

Benefits and Advantages

Consistent Purity and Concentration

Zenco Systems Ltd provides phosphoric acid with stable purity and 85% concentration, ensuring predictable reactivity and dosing across applications. This consistency reduces variability in production processes, enables precise quality control, and lowers waste from off-spec chemical batches, directly benefiting operational efficiency.

Versatility Across Industries

Phosphoric Acid (85%) serves multiple functions—from acidification in food processing to phosphate source in agriculture and metal cleaning in manufacturing. This versatility means one chemical supply can fulfill diverse demands across Kenya, Uganda, and Tanzania, reducing procurement complexity for multi-sector businesses.

Ease of Handling and Integration

At 85% concentration, phosphoric acid offers a manageable viscosity and excellent solubility, making it easier to integrate into liquid formulations and dosing systems. This property also minimizes equipment corrosion risk compared to stronger acids, lowering maintenance costs and enhancing workplace safety.

Reliable Regional Supply

Zenco Systems Ltd’s distribution network across East Africa supports just-in-time delivery and reduces lead times, critical for industries like food and agriculture that require uninterrupted production. The local availability of this key chemical eliminates dependence on long international supply chains, supporting operational continuity.

Packaging Information

Phosphoric Acid (85%) is offered in multiple packaging formats suitable for different scales of use in Kenya, Uganda, and Tanzania. Standard packaging includes 25kg and 50kg drums for moderate industrial consumption and larger 200L drums suited for bulk users. These packaging options use chemical-resistant HDPE or steel drums with liners to prevent leakage and contamination. For customers requiring larger volumes, Zenco Systems Ltd can arrange bulk tanker deliveries with proper handling logistics ensuring product integrity during transit and storage.

Standard formats: 25kg drums, 50kg drums, 200L drums

Storage and Handling

Store phosphoric acid in a cool, dry, well-ventilated area away from direct sunlight and incompatible substances such as strong bases and reactive metals. Containers must be tightly sealed to prevent contamination and moisture ingress. Use corrosion-resistant storage tanks or drums made of HDPE or lined steel. Avoid contact with organic materials and oxidizing agents to prevent hazardous reactions. Shelf life is typically stable for several years if appropriately stored. Always use personal protective equipment like gloves and goggles when handling to avoid chemical burns and inhalation risks.

Safety Information

Phosphoric Acid (85%) is corrosive and can cause severe skin and eye irritation or burns on contact. Handling requires acid-resistant gloves, safety goggles, and protective clothing. In case of skin contact, rinse immediately with plenty of water. Inhalation of vapors or mists should be avoided; work in well-ventilated areas or use respiratory protection if necessary. Spills must be neutralized with suitable alkaline agents and contained to prevent environmental release. Dispose of waste according to local environmental regulations. Consult the Safety Data Sheet (SDS) supplied by Zenco Systems Ltd for detailed safety and first aid measures.

Technical Specifications

pHBelow 2 (for 85% solution)
GradeFood Grade / Technical Grade
PurityConfirm with supplier
DensityApproximately 1.685 g/cm³ at 25°C
FormulaH3PO4
Packaging25kg drums, 50kg drums, 200L drums
AppearanceColorless transparent liquid
CAS Number7664-38-2
SolubilityCompletely miscible with water
Chemical NamePhosphoric Acid
Storage ConditionsStore in cool, dry, well-ventilated and acid-resistant containers

Applications

  • Food processing
  • Water treatment
  • Detergent manufacturing
  • Metal treatment
  • Agriculture

Technical Data Sheet (TDS)

pHBelow 2 (for 85% solution)
GradeFood Grade / Technical Grade
PurityConfirm with supplier
DensityApproximately 1.685 g/cm³ at 25°C
FormulaH3PO4
Packaging25kg drums, 50kg drums, 200L drums
AppearanceColorless transparent liquid
CAS Number7664-38-2
SolubilityCompletely miscible with water
Chemical NamePhosphoric Acid
Storage ConditionsStore in cool, dry, well-ventilated and acid-resistant containers

Product Features

  • - Highly concentrated 85% aqueous solution
  • - Colorless and transparent liquid
  • - Non-volatile at ambient temperature
  • - Good solubility in water
  • - Moderate acid strength with three acidic protons
  • - Available in food and technical grades

Industries Served

  • - Food and beverage manufacturing
  • - Agriculture and fertilizer industry
  • - Water treatment facilities
  • - Industrial cleaning and detergent producers
  • - Metal processing and treatment factories

Product Overview

Frequently Asked Questions About Phosphoric Acid (85%)

What is the typical use of Phosphoric Acid (85%) in food processing?

It acts as an acidulant to adjust pH, enhance flavor, and preserve food products. Its food-grade form meets safety standards for consumption-sensitive applications like soft drinks.

How should Phosphoric Acid (85%) be diluted for water treatment applications?

Concentration and dosing depend on water quality and treatment goals. Typically, it is diluted with water to a controlled lower concentration before precise dosing into the water stream.

Is Phosphoric Acid (85%) supplied by Zenco Systems Ltd available outside Kenya?

Yes, Zenco Systems Ltd supplies to Uganda, Tanzania, Rwanda, and surrounding East African countries with logistics tailored for cross-border transport and compliance.

What packaging sizes are available for purchase?

Phosphoric Acid (85%) is available in 25kg and 50kg drums for moderate scale, and 200L drums for bulk industrial customers. Larger volumes can be arranged via bulk tanker deliveries.

What are the safety precautions when handling this acid?

Use acid-resistant gloves, goggles, and protective clothing. Work in well-ventilated areas, avoid skin and eye contact, and neutralize spills carefully. Refer to the SDS for detailed safety measures.

How long can Phosphoric Acid (85%) be stored without degradation?

Stored properly in sealed acid-resistant containers away from heat and incompatible materials, the acid remains stable for several years.

Can I get a certificate of analysis for purity before purchase?

Yes, Zenco Systems Ltd provides certificates of analysis confirming purity and grade upon request to assist with quality control and regulatory compliance.

Is this phosphoric acid suitable for agricultural fertilizer production?

Yes, both technical and food-grade phosphoric acid can be used as a phosphorus source in manufacturing phosphate fertilizers like MAP and DAP.

What is the difference between food grade and technical grade Phosphoric Acid?

Food grade meets stricter purity and contaminant limits suitable for food applications, whereas technical grade is intended for industrial uses such as metal treatment or detergents.

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