Phosphoric Acid 75 ACS Grade

Category : Acids

$28.71
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Other Grades & Concentrations

Available in other grades and concentrations:

Phosphoric Acid 85% ACS Grade
From $28.71
CAS: 7664-38-2 H3PO4
Phosphoric Acid 50% ACS Grade
From $21.38
CAS: 7664-38-2 H3PO4
Phosphoric Acid 45% ACS Grade
From $21.18
CAS: 7664-38-2 H3PO4
Phosphoric Acid 20% ACS Grade
From $20.19
CAS: 7664-38-2 H3PO4
$28.71
Other Grades & Concentrations

Available in other grades and concentrations:

Phosphoric Acid 85% ACS Grade
From $28.71
CAS: 7664-38-2 H3PO4
Phosphoric Acid 50% ACS Grade
From $21.38
CAS: 7664-38-2 H3PO4
Phosphoric Acid 45% ACS Grade
From $21.18
CAS: 7664-38-2 H3PO4
Phosphoric Acid 20% ACS Grade
From $20.19
CAS: 7664-38-2 H3PO4

Phosphoric Acid 75 ACS Grade

$28.71

Commercial Fulfillment Snapshot

Buy Phosphoric Acid 75 ACS Grade with faster decisions and fewer back-and-forth emails.

Ships from Taylor, Texas. In-stock orders placed before 1:00 PM CT (Mon-Thu) and before 12:00 PM CT (Fri) typically ship same business day. Order online 24/7.

Technical Documents

Lot-specific COA is issued per shipment batch.

Who Buys This
  • Analytical testing laboratories
  • Research & development teams
  • Quality control departments
  • University chemistry labs
  • Pharmaceutical manufacturers
Purity / Grade Guide
  • ACS Grade meets reagent standards
  • High purity for lab applications
  • Consistent COA-verified purity range
  • Low metals for analytical work
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
SDS / COA / TDS
  • UN 1805 Class 8 packaging
  • SDS with every shipment
  • COA showing ACS compliance
  • Hazmat shipping documentation included
Small Packs: UPS Ground nationwide for pints, quarts, and gallons.
LTL / FTL: ABF, SEFL, Saia, XPO, and partner carriers for pails, drums, totes, and full truckloads.
Support: Email or call for freight options, hazardous-material routing, and lead-time confirmation.

Why Phosphoric Acid 75 ACS Grade

Phosphoric Acid 75 ACS Grade provides chemical research facilities and analytical laboratories with a certified purity level necessary for strict quantitative protocols. At a 75% concentration, this transparent, non-flammable liquid delivers precise pH control and reagent consistency while remaining a mobile liquid with water-like clarity. Buyers select this specific ACS-certified chemical when their analytical methods demand verified, ultra-low elemental impurity limits that standard industrial chemicals cannot guarantee. The 75% concentration serves as an optimal baseline for creating precise dilutions, offering high water solubility and excellent aqueous dispersibility. Because it is highly miscible with polar solvents, this acid integrates rapidly into complex aqueous matrices without phase separation. By adhering strictly to American Chemical Society standards, this product eliminates formulation variables in sensitive laboratory environments, advanced water treatment protocols, and highly controlled industrial synthesis.

Best Applications for This Grade

  • Commonly applied in analytical chemistry laboratories as a standardized reagent for titrations, mobile phase preparations, and buffer formulations where ACS grade certification ensures baseline accuracy and reproducible results.
  • Commonly applied in industrial water treatment facilities to achieve exact pH depression and alkalinity control, utilizing its excellent aqueous dispersibility to rapidly integrate into large-volume municipal or facility flow systems.
  • Commonly applied in specialized metal etching, brightening, and pickling operations that require a highly controlled 75% acid concentration completely free of heavy metal impurities that could otherwise interfere with sensitive aluminum or stainless steel surface treatments.
  • Commonly applied in advanced chemical manufacturing as an intermediate catalyst or reactant, taking advantage of its fully miscible nature with polar solvents to maintain phase stability during complex multi-step synthesis.

When to Choose a Different Grade

  • If strict analytical protocols, advanced laboratory methods, or chemical synthesis reactions demand a more concentrated, undiluted reagent with identical American Chemical Society purity certifications, select Phosphoric Acid 85% ACS Grade.
  • If your industrial application requires the exact same 75% concentration for standard pH adjustment or metal processing but does not mandate the strict, documented impurity limits of an analytical certification, select Phosphoric Acid 75%.
  • If facility operations require a pre-diluted formulation specifically targeted at metal oxide reduction and surface preparation rather than general chemical synthesis, select Phosphoric Acid 30% - The Ultimate Rust Remover Solution.
  • If your process requires a specialized, pre-formulated large-scale buffering system tailored for specific operational stability rather than a pure acid reagent, select pH-Ree Fall - World Class Buffering Solution For PH Stability Made From Phosphoric Acid.
Property Value
Molecular Weight 98.00
Formula H3PO4
Assay 75-76.5%
Grade ACS Grade
Flash Point Non-flammable
Form Liquid
Solubility Soluble in water
Appearance Clear, colorless liquid
Melting Point 21
Boiling Point 158
Specific Gravity 1.685
Industry Water Treatment, Agriculture, Food Processing, Chemical Manufacturing, Industrial Cleaning

Frequently Asked Questions About Phosphoric Acid 75 ACS Grade

What is Phosphoric Acid 75 ACS Grade and what is its chemical formula?
Phosphoric Acid 75 ACS 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 75 ACS Grade in ACS Reagent grade for laboratory, industrial, and commercial applications.
What are the physical properties of Phosphoric Acid 75 ACS Grade?
According to the NIOSH Pocket Guide to Chemical Hazards, Phosphoric Acid 75 ACS Grade is supplied as a transparent, mobile liquid with water-like clarity. It has a melting point of 42°C (107.6°F)°C, a boiling point of 158°C (316.4°F)°C, a flash point of Non-flammable. The specific gravity is 1.57 relative to water. Solubility: High water solubility, miscible with polar solvents, excellent aqueous dispersibility.
What grade and purity of Phosphoric Acid 75 ACS Grade does Alliance Chemical offer?
Alliance Chemical offers Phosphoric Acid 75 ACS Grade in ACS Reagent grade with a purity assay of 75%. 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 75 ACS Grade?
Phosphoric Acid 75 ACS Grade serves a wide range of sectors, including Chemical Processing, Industrial & Manufacturing, Lab & Research, and Water & Environmental.Alliance Chemical provides the documentation and quality certifications required for use in regulated environments.
What PPE is required when handling Phosphoric Acid 75 ACS 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 75 ACS 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 75 ACS 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 75 ACS Grade?
DOT Classification per 49 CFR 172.101:UN1805, Hazard Class8, Packing GroupIII. 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 75 ACS 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 75 ACS Grade?
Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of Phosphoric Acid 75 ACS 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.