Phosphoric Acid 85% Technical Grade

Name: Phosphoric Acid 85% - Technical Grade
Brand: Alliance Chemical
SKU: BZU-WXN-GVA
Availability: InStock
Rating: 4.9 (15 reviews)

Who Buys This

Fertilizer manufacturers
Water treatment facilities
Metal finishing companies
Food processing plants
Chemical synthesis operations

Grade Guide

Technical grade industrial applications
85-88% assay concentration
Suitable for manufacturing processes
Not for pharmaceutical use

Pack Sizes

1 Quart: lab & small jobs
1 Gallon: shop & maintenance
5 Gallon: production & regular use
15 Gallon: mid-volume operations
55 Gallon: bulk drum
275 Gallon: high-volume tote
330 Gallon: max-volume tote

Docs Included

UN 1805 Class 8 packaging
SDS included with order
COA verifies specifications
DANGER corrosive material warnings

Description
Product Documents
Chemical Profile

Product Overview

Phosphoric Acid 85% - Technical Grade (Orthophosphoric Acid, H₃PO₄) is a concentrated, clear, colorless liquid engineered for demanding industrial applications. This high-purity solution is optimized for metal finishing, fertilizer manufacturing, and precise pH control in chemical processing. With a typical assay of 86.5% and a specific gravity of approximately 1.69 g/mL, it ensures consistent dosing and reaction rates in downstream operations.

As a strong mineral acid, this technical grade specification restricts trace metals and impurities, making it suitable for chemical synthesis and rust conversion protocols. While it meets ACS Reagent Grade compliance for certain specifications, it is formulated strictly for industrial use. It effectively passivates metal surfaces to prevent corrosion and serves as a primary source of phosphorus in agricultural formulations.

Key Properties

Appearance: Clear, colorless liquid
Chemical Formula: H₃PO₄ (Orthophosphoric Acid)
Concentration: 85% Technical Grade
Specific Gravity (20°C): 1.69 (typical)
Boiling Point: 158 °C
Chloride (Cl⁻): Max 500 ppm
Sulfate (SO₄²⁻): Max 2000 ppm
Heavy Metals (as Pb): Max 10 ppm
Iron (Fe): Max 2 ppm
Solubility: Miscible in water

Common Applications

Metal Treatment & Finishing: Acts as a rust converter and passivation agent, preparing steel surfaces for coating by converting iron oxide into iron phosphate.
Fertilizer Production: A primary feedstock for the synthesis of phosphate-based fertilizers and nutrient solutions.
Industrial pH Control: Used to neutralize alkaline solutions in wastewater treatment and chemical processing streams.
Chemical Synthesis: Essential reagent for manufacturing phosphates, activated carbon, and electrolytes.
Cleaning Agents: Formulated into industrial cleaners for removing mineral deposits and hard water stains.

Safety Precautions

Phosphoric Acid is corrosive to skin, eyes, and metal. Handle with full Personal Protective Equipment (PPE), including acid-resistant gloves, chemical splash goggles, and face shields. Ensure use in well-ventilated areas. Store in a cool, dry place in corrosion-resistant containers (HDPE or glass), away from alkalis and reactive metals.

Shipping Information: This product is regulated as a hazardous material. UN 1805, Class 8, Packing Group III.

Benefits

High Concentration – 85% strength allows for economical dilution and efficient bulk storage.
Technical Purity – Controlled impurity profile ensures reliable performance in manufacturing and synthesis.
Versatile Utility – Effective for both aggressive rust removal and delicate pH adjustment.
Scalable Packaging – Available in sizes from 1 Quart to 330 Gallon Totes to suit lab or plant requirements.

Related Products

Property	Value
Molecular Weight	98 g/mol
Formula	H3PO4
Assay	85%
Grade	Technical
Form	Liquid
Solubility	Highly water soluble, miscible with alcohols, polar organic solvents
Appearance	Clear viscous liquid, transparent pale color
Melting Point	42 °C
Boiling Point	213 °C
Specific Gravity	1.69
Industry	Industrial, Environmental, Wastewater

Frequently Asked Questions About Phosphoric Acid 85% - Technical Grade

What is Phosphoric Acid 85% - Technical Grade and what is its chemical formula?

Phosphoric Acid 85% - Technical 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% - Technical Grade in Technical grade for laboratory, industrial, and commercial applications.

What are the physical properties of Phosphoric Acid 85% - Technical Grade?

According to the NIOSH Pocket Guide to Chemical Hazards, Phosphoric Acid 85% - Technical Grade is supplied as a clear viscous liquid, transparent pale color. It has a melting point of 42°C, a boiling point of 213°C. The specific gravity is 1.69 relative to water. Solubility: Highly water soluble, miscible with alcohols, polar organic solvents.

What grade and purity of Phosphoric Acid 85% - Technical Grade does Alliance Chemical offer?

Alliance Chemical offers Phosphoric Acid 85% - Technical Grade in Technical 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% - Technical Grade?

Phosphoric Acid 85% - Technical Grade serves a wide range of sectors, including Industrial, Environmental, and Wastewater.Alliance Chemical provides the documentation and quality certifications required for use in regulated environments.

What PPE is required when handling Phosphoric Acid 85% - Technical 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. 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% - Technical Grade?

Store perOSHA 29 CFR 1910.1450: Dedicated corrosives cabinet with secondary containment (110% volume per EPA 40 CFR 264.175). 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% - Technical Grade?

Emergency response per EPA SPCC (40 CFR 112) and OSHA 29 CFR 1910.120: (1) Alert personnel, evacuate area to 50 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% - Technical 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% - Technical 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% - Technical Grade?

Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of Phosphoric Acid 85% - Technical 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.

Phosphoric Acid 85% - Technical Grade