One 1-quart plastic bottle of Alliance Chemical Phosphoric Acid 85% Food Grade with a white screw cap and product label.
1-gallon HDPE container of 85% Phosphoric Acid USP Food Grade by Alliance Chemical
Two 1-quart plastic bottles of Alliance Chemical Phosphoric Acid 85% Food Grade with white caps and product labels.
Four 1-gallon Alliance Chemical Phosphoric Acid 85% Food Grade HDPE jugs with white screw caps and safety labels in a card...
48 boxes (full pallet) of USP/Food Grade 85% Phosphoric Acid on pallet, branded Alliance Chemical containers stacked 5-high
5-gallon HDPE container of Phosphoric Acid 85% USP Food Grade by Alliance Chemical
15x 5-gallon poly pails of 85% USP Food Grade Phosphoric Acid on pallet, Alliance Chemical branded containers, sealed caps
15-gallon HDPE drum of USP Food Grade 85% Phosphoric Acid Alliance Chemical branded safety label
55-gallon HDPE drums of 85% USP Food Grade Phosphoric Acid hazard warnings and Alliance Chemical branding, 4-drum set
250-gallon IBC tote of 85% USP Food Grade Phosphoric Acid by Alliance Chemical
Four 1-quart plastic bottles of Alliance Chemical Phosphoric Acid 85% Food Grade with white screw caps and product labels.
Seven 1-quart plastic bottles of Alliance Chemical Phosphoric Acid 85% Food Grade with white ribbed caps and product labels.
1-gallon jugs of 85% Phosphoric Acid USP Food Grade by Alliance Chemical, HDPE containers
55-gallon blue drum of Phosphoric Acid 85% USP Food Grade red caps, and Alliance Chemical branding

Phosphoric Acid 85% Food Grade

Category : Acids

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Phosphoric Acid 85% Food Grade

$19.00
1-gallon HDPE container of 85% Phosphoric Acid USP Food Grade by Alliance Chemical
One 1-quart plastic bottle of Alliance Chemical Phosphoric Acid 85% Food Grade with a white screw cap and product label.
Two 1-quart plastic bottles of Alliance Chemical Phosphoric Acid 85% Food Grade with white caps and product labels.
Four 1-gallon Alliance Chemical Phosphoric Acid 85% Food Grade HDPE jugs with white screw caps and safety labels in a card...
48 boxes (full pallet) of USP/Food Grade 85% Phosphoric Acid on pallet, branded Alliance Chemical containers stacked 5-high
5-gallon HDPE container of Phosphoric Acid 85% USP Food Grade by Alliance Chemical
15x 5-gallon poly pails of 85% USP Food Grade Phosphoric Acid on pallet, Alliance Chemical branded containers, sealed caps
15-gallon HDPE drum of USP Food Grade 85% Phosphoric Acid Alliance Chemical branded safety label
55-gallon HDPE drums of 85% USP Food Grade Phosphoric Acid hazard warnings and Alliance Chemical branding, 4-drum set
250-gallon IBC tote of 85% USP Food Grade Phosphoric Acid by Alliance Chemical
Four 1-quart plastic bottles of Alliance Chemical Phosphoric Acid 85% Food Grade with white screw caps and product labels.
Seven 1-quart plastic bottles of Alliance Chemical Phosphoric Acid 85% Food Grade with white ribbed caps and product labels.
1-gallon jugs of 85% Phosphoric Acid USP Food Grade by Alliance Chemical, HDPE containers
55-gallon blue drum of Phosphoric Acid 85% USP Food Grade red caps, and Alliance Chemical branding
  • Description
  • Product Documents
  • Chemical Profile

Product Overview

Phosphoric Acid 85% Food Grade (H3PO4), also known as Orthophosphoric Acid, is a high-purity, viscous liquid meeting USP-NF monograph standards. This concentrated solution serves as a critical acidulant and pH adjuster in the food and beverage industry, offering precise acidity regulation for soft drinks, dairy processing, and baking formulations.

Beyond food applications, this 85% concentration is utilized in hydroponics as a phosphorus source and in industrial cleaning for passivation and mineral deposit removal. The product features a low impurity profile with strict controls on heavy metals (Arsenic, Lead, Heavy Metals), ensuring compliance for clean-label requirements. It is available in bulk packaging ranging from 1 quart to 250-gallon totes to support both pilot testing and large-scale manufacturing.

Key Properties

  • Chemical Name: Phosphoric Acid
  • Synonyms: Orthophosphoric Acid, H3PO4
  • Concentration: 85%
  • Grade: Food Grade (USP-NF)
  • CAS Number: 7664-38-2
  • Appearance: Colorless, odorless viscous liquid
  • Specific Gravity: 1.66 – 1.70
  • Boiling Point: 158 °C
  • Heavy Metals (as Pb): ≤ 0.2 ppm (typical 0.05 ppm)
  • Arsenic (As): ≤ 0.01 ppm (typical 0.005 ppm)
  • Solubility: Miscible in water
  • Shelf Life: 24 months with proper storage

Common Applications

  • Beverage Acidulant: Provides the characteristic tartness in colas and soft drinks while inhibiting microbial growth through pH reduction.
  • pH Control: Used to adjust and buffer pH levels in cheese processing, brewing, and jams/jellies manufacturing.
  • Nutrient Source: Supplies essential phosphorus in hydroponic solutions and liquid fertilizers.
  • CIP Cleaning: Effective for removing beer stone and milk stone in dairy and brewery equipment cleaning cycles.
  • Surface Treatment: Used in metal finishing to prepare surfaces and prevent flash rusting.

Safety & Handling

Phosphoric Acid 85% is corrosive (UN 1805, Class 8). Handling requires appropriate Personal Protective Equipment (PPE), including chemical-resistant gloves, goggles, and face shields. Store in a cool, well-ventilated area in corrosion-resistant containers (HDPE or glass). In the event of skin or eye contact, rinse immediately with copious amounts of water. Refer to the Safety Data Sheet (SDS) for detailed emergency response and disposal procedures.

Related Products

Property Value
Molecular Weight 98 g/mol
Formula H3PO4
Assay 85%
Flash Point Not applicable
Form Liquid
Solubility Completely miscible with water, polar solvents; excellent aqueous dissolution
Appearance Clear viscous liquid, pale yellow, translucent
Melting Point 42 °C
Boiling Point 158 °C
Industry Chemical Manufacturing, Research, Agriculture, Industrial Processing

Frequently Asked Questions About Phosphoric Acid 85% Food Grade

What is Phosphoric Acid 85% Food Grade and what is its chemical formula?
Phosphoric Acid 85% Food Grade is a chemical compound with the molecular formula H3PO4, registered under CAS Number 7664-38-2 by the Chemical Abstracts Service (PubChem), with a molecular weight of 98 g/mol. Alliance Chemical supplies Phosphoric Acid 85% Food Grade for laboratory, industrial, and commercial applications.
What are the physical properties of Phosphoric Acid 85% Food Grade?
According to the NIOSH Pocket Guide to Chemical Hazards, Phosphoric Acid 85% Food Grade is supplied as a clear viscous liquid, pale yellow, translucent. It has a melting point of 42°C, a boiling point of 158°C, a flash point of Not applicable. Solubility: Completely miscible with water, polar solvents; excellent aqueous dissolution.
What grade and purity of Phosphoric Acid 85% Food Grade does Alliance Chemical offer?
Alliance Chemical offers Phosphoric Acid 85% Food Grade with a purity assay of 85%. Every lot ships with a Certificate of Analysis (COA) and Safety Data Sheet (SDS) prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and GHS Revision 7. Download SDS.
What are common industrial applications of Phosphoric Acid 85% Food Grade?
Phosphoric Acid 85% Food Grade serves a wide range of sectors, including Chemical Manufacturing, Research, Agriculture, and Industrial Processing.Alliance Chemical provides the documentation and quality certifications required for use in regulated environments.
What PPE is required when handling Phosphoric Acid 85% Food Grade?
OSHA-mandated PPE per 29 CFR 1910.132-138:Chemical-resistant gloves (20+ mil neoprene or PVC), full face shield over safety goggles (ANSI Z87.1), acid-resistant apron or chemical suit, closed-toe chemical-resistant footwear. Respiratory protection (organic vapor cartridge) required in areas exceeding PEL/TLV per 29 CFR 1910.134. Emergency eyewash station and safety shower must be accessible within 10 seconds per ANSI Z358.1. Consult the SDS available from Alliance Chemical for complete PPE requirements.
What are the storage requirements for Phosphoric Acid 85% Food Grade?
Store perOSHA 29 CFR 1910.106: Approved flammable storage cabinet, maximum 60 gallons per cabinet, grounding/bonding required. Temperature range:15-25°C. Segregate from:bases, reactive metals, organic materials. Maximum storage:2-3 years unopened.
What is the emergency spill procedure for Phosphoric Acid 85% Food Grade?
Emergency response per EPA SPCC (40 CFR 112) and OSHA 29 CFR 1910.120: (1) Alert personnel, evacuate area to 100 feet. (2) Eliminate ignition sources if flammable. (3) Don PPE per SDS Section 8. (4) Stop leak if safe; use emergency shutoffs. (5) Contain with non-combustible absorbent materials, dike with sand/earth. (6)Carefully neutralize with sodium bicarbonate (5-10% solution), monitor exothermic reaction. (7) Collect in DOT-approved containers, label as hazardous waste. Check 40 CFR 302.4 for Reportable Quantity. Emergency: Chemtel 1-800-255-3924 (24/7). Non-emergency: Alliance Chemical 512-365-6838.
What is the DOT shipping classification for Phosphoric Acid 85% Food Grade?
DOT Classification per 49 CFR 172.101:See SDS Section 14 for specific UN number, Hazard Class8 (Corrosive), Packing GroupII/III. Requires: Hazmat shipping papers (49 CFR 172.200), UN specification packaging (49 CFR 173), hazmat labels (172.400). Alliance Chemical ships all orders in DOT-compliant packaging with proper documentation.
How must Phosphoric Acid 85% Food Grade waste be disposed?
Disposal per RCRA (40 CFR 261-265):Characteristic waste D002 (Corrosive, pH ≤2 or ≥12.5). Generator requirements: EPA ID number required if >100 kg/month (40 CFR 262.12). Use EPA-permitted Treatment, Storage, Disposal Facility (TSDF). Never discharge to sewer without POTW written approval (40 CFR 403). Container disposal: Triple rinse (40 CFR 261.7), offer for reconditioning/recycling. State regulations may be more stringent — check with your local environmental agency. Consult the Alliance Chemical SDS for product-specific disposal guidance.
Does Alliance Chemical provide an SDS and COA for Phosphoric Acid 85% Food Grade?
Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of Phosphoric Acid 85% Food Grade. The SDS is prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and the Globally Harmonized System (GHS) Revision 7, covering all 16 required sections including hazard identification, first aid measures, firefighting measures, handling and storage, exposure controls, and regulatory information. The SDS is available for download directly from this product page. COAs are available upon request by contacting Alliance Chemical at 512-365-6838.

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