{"product_id":"phosphoric-acid-30-the-ultimate-rust-remover-solution","title":"Phosphoric Acid 30% - The Ultimate Rust Remover Solution","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003ePhosphoric Acid 30% is an industrial-strength solution designed for surface preparation and scale removal. Alliance Chemical provides this standard dilution to support diverse commercial operations without the need for in-house mixing of concentrated acids. Formulated with pure raw materials, this clear, odorless liquid ensures uniform consistency across multiple applications, particularly in metal treatment where precise chemical activity is critical for achieving optimal finish quality. It is a reliable choice for operations requiring controlled acidity and a consistent reaction profile.\u003c\/p\u003e\u003cp\u003eThis aqueous solution contains 30% active phosphoric acid — CAS 7664-38-2 — presenting a balanced concentration that balances chemical efficiency with manageable handling profiles. For facility managers and industrial technicians, utilizing a pre-diluted 30% concentration reduces the hazards associated with diluting highly concentrated acids in-house — preventing exothermic reactions and potential splash hazards. Alliance Chemical packages this product in various sizes to support your operations, ensuring that your facility receives a consistent, high-purity product tailored to your specific process volume needs. You can browse our complete catalog of \u003ca href=\"\/collections\/acids\"\u003eindustrial acids\u003c\/a\u003e to find the exact formulation for your requirements.\u003c\/p\u003e\u003ch3\u003eWhy This Grade\u003c\/h3\u003e\u003cp\u003eSelecting a 30% concentration of phosphoric acid is essential for applications where stronger formulations would cause excessive substrate damage, and weaker dilutions would fail to achieve the required reaction rate. This concentration is widely specified for surface etching, rust conversion, and mineral descaling on steel and iron substrates. Utilizing the incorrect concentration introduces significant failure modes into industrial processes. For example, using a concentration that is too low will lead to incomplete rust conversion, leaving active iron oxides underneath coatings that ultimately cause premature paint adhesion failure.\u003c\/p\u003e\u003cp\u003eConversely, deploying a highly concentrated acid on delicate metallic surfaces can lead to aggressive pitting, hydrogen embrittlement, and rapid substrate degradation, ruining the dimensional tolerance of precision components. By specifying Alliance Chemical's 30% solution, operators access an optimized chemical profile that reacts efficiently with iron oxides without compromising the structural integrity of the underlying base metal. This concentration ensures uniform phosphate conversion coating, which is crucial for subsequent powder coating or painting operations in manufacturing environments.\u003c\/p\u003e\n\u003cdiv class=\"chemical-profile\" data-source=\"canonical\"\u003e\n\u003ch3\u003eChemical Profile\u003c\/h3\u003e\n\u003cdl\u003e\n\u003cdt\u003eCAS Number\u003c\/dt\u003e\n\u003cdd\u003e7664-38-2\u003c\/dd\u003e\n\u003cdt\u003eChemical Formula\u003c\/dt\u003e\n\u003cdd\u003eH3O4P\u003c\/dd\u003e\n\u003cdt\u003eMolecular Weight\u003c\/dt\u003e\n\u003cdd\u003e97.995 g\/mol\u003c\/dd\u003e\n\u003cdt\u003eBoiling Point\u003c\/dt\u003e\n\u003cdd\u003egreater than 266 °F at 760 mmHg (USCG, 1999)\u003c\/dd\u003e\n\u003cdt\u003eMelting Point\u003c\/dt\u003e\n\u003cdd\u003e108 °F (NIOSH, 2024)\u003c\/dd\u003e\n\u003cdt\u003eFlash Point\u003c\/dt\u003e\n\u003cdd\u003e200 °C\u003c\/dd\u003e\n\u003cdt\u003eSpecific Gravity\u003c\/dt\u003e\n\u003cdd\u003e1.892 at 77 °F (USCG, 1999) - Denser than water; will sink\u003c\/dd\u003e\n\u003cdt\u003eAppearance\u003c\/dt\u003e\n\u003cdd\u003ePhosphoric acid appears as a clear colorless liquid or transparent crystalline solid. The pure solid melts at 42.35 °C and has a density of 1.834 g \/ cm3. Liquid is usually an 85% aqueous solution. Shipped as both a solid and liquid. Corrosive to metals and tissue. Used in making fertilizers and detergents and in food processing.\u003c\/dd\u003e\n\u003cdt\u003eSolubility\u003c\/dt\u003e\n\u003cdd\u003eMiscible (NIOSH, 2024)\u003c\/dd\u003e\n\u003cdt\u003eUN Number\u003c\/dt\u003e\n\u003cdd\u003eUN1805\u003c\/dd\u003e\n\u003cdt\u003eHazard Class\u003c\/dt\u003e\n\u003cdd\u003eClass 8\u003c\/dd\u003e\n\u003cdt\u003ePacking Group\u003c\/dt\u003e\n\u003cdd\u003eIII\u003c\/dd\u003e\n\u003cdt\u003eProper Shipping Name\u003c\/dt\u003e\n\u003cdd\u003ePhosphoric acid solution\u003c\/dd\u003e\n\u003cdt\u003eGHS Signal Word\u003c\/dt\u003e\n\u003cdd\u003eDanger\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cp class=\"chemical-profile__note\"\u003e\u003cem\u003eValues sourced from Alliance Chemical's canonical chemistry registry. Certificate of Analysis (COA) per lot.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eIndustrial Applications\u003c\/h3\u003e\u003cp\u003eThis acid is widely utilized across several key sectors, particularly in \u003ca href=\"\/pages\/industries\/surface-preparation\"\u003esurface preparation\u003c\/a\u003e applications:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSteel surface preparation and rust conversion to form a protective iron phosphate coating prior to industrial powder coating processes.\u003c\/li\u003e\n\u003cli\u003eHeavy-duty mineral scale removal in industrial boilers, heat exchangers, and commercial cooling towers to restore optimal thermal transfer efficiency.\u003c\/li\u003e\n\u003cli\u003eWastewater pH adjustment and chemical neutralization in industrial effluent treatment plants to meet strict state and federal discharge requirements.\u003c\/li\u003e\n\u003cli\u003eConcrete floor etching in commercial warehouse facilities to ensure superior mechanical adhesion for protective epoxy and urethane coatings.\u003c\/li\u003e\n\u003cli\u003eMetal cleaning and chemical passivation of industrial machinery components to prevent flash rust during transport and extended warehouse storage.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHazmat \u0026amp; Shipping\u003c\/h3\u003e\u003cp\u003ePhosphoric Acid 30% is a regulated hazardous material due to its corrosive properties. For transport, it is classified as \u003cstrong\u003eUN1805\u003c\/strong\u003e, Hazard Class \u003cstrong\u003e8\u003c\/strong\u003e, Packing Group \u003cstrong\u003eIII\u003c\/strong\u003e. The proper shipping name is \u003cem\u003ePhosphoric acid solution\u003c\/em\u003e. With a signal word of \u003cstrong\u003eDanger\u003c\/strong\u003e, this material requires compliant labeling and documented handling procedures during transport. Alliance Chemical ensures all shipments strictly adhere to DOT regulations, utilizing authorized shipping containers and certified hazmat carriers to guarantee safe delivery to your facility.\u003c\/p\u003e\u003cp\u003eIn accordance with GHS classification and the primary hazard statement \u003cstrong\u003eH314\u003c\/strong\u003e, which notes that it causes severe skin burns and eye damage, operators must utilize appropriate personal protective equipment (PPE). When handling this chemical, personnel must wear acid-resistant gloves, chemical splash goggles, a full-face shield, and a protective apron to prevent direct skin or eye contact. Ensure the working environment is equipped with a functioning eyewash station and safety shower. Consult the Safety Data Sheet (SDS) provided with every order for detailed safety and spill mitigation protocols.\u003c\/p\u003e\u003ch3\u003eHandling \u0026amp; Storage\u003c\/h3\u003e\u003cp\u003eProper storage of Phosphoric Acid 30% is critical to maintaining chemical stability and preventing accidental releases. This solution should be stored in a cool, dry, well-ventilated area, ideally within a temperature range of 50°F to 104°F to avoid extreme temperatures. Keep the container tightly closed when not in use. It is highly compatible with high-density polyethylene (HDPE) and polypropylene containers, but it must never be stored in mild steel, aluminum, or galvanized containers due to corrosive reactions. Avoid contact with incompatible substances such as strong bases, strong oxidizing agents, and active metals.\u003c\/p\u003e\u003ch3\u003eOrder \u0026amp; Documentation\u003c\/h3\u003e\u003cp\u003eAlliance Chemical provides reliable logistics and comprehensive support for your bulk chemical requirements. We offer rapid lead times and flexible packaging options to support your facility's operational needs. A Certificate of Analysis (COA) is available upon request to verify purity, and a Safety Data Sheet (SDS) is provided with every order to assist with your regulatory compliance programs. Please \u003ca href=\"\/pages\/contact\" class=\"cta-button\"\u003eRequest a Quote\u003c\/a\u003e for bulk pricing or \u003ca href=\"\/pages\/safety-data-sheets\"\u003eDownload the SDS\u003c\/a\u003e to review safety protocols.\u003c\/p\u003e\u003ch3\u003eWhy Buy from Alliance Chemical\u003c\/h3\u003e\u003cp\u003eSince 1997, Alliance Chemical has supplied premium industrial chemicals from Taylor, Texas under CAGE Code 1LT50, with a COA and SDS included on every order. For industrial use only.\u003c\/p\u003e\u003cdiv style=\"margin:2.4rem 0 1rem;padding:1.2rem 1.4rem;background:#f7f6ff;border-left:4px solid #5F59F7;border-radius:6px;\"\u003e\n\u003cp style=\"margin:0 0 .35rem;font-family:'JetBrains Mono',ui-monospace,monospace;font-size:.72rem;letter-spacing:.10em;text-transform:uppercase;color:#5F59F7;font-weight:600;\"\u003eRelated reading\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:1rem;line-height:1.55;color:#1A1040;\"\u003e\u003ca href=\"https:\/\/alliancechemical.com\/blogs\/articles\/car-dipping-3-tank-paint-rust-removal-process-guide\" style=\"color:#1A1040;font-weight:600;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:2px;\"\u003eCar Dipping: The 3-Tank Process That Strips Paint and Kills Rust on a Whole Car Body\u003c\/a\u003e — the canonical Tank 2 chemistry for whole-body car dipping — converts iron oxide to primer-ready iron phosphate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rr-backlink\" style=\"margin:26px 0 8px;padding:15px 18px;background:#f7f6fc;border-left:4px solid #5F59F7;border-radius:8px;font-family:system-ui,sans-serif;\"\u003e\n\u003cstrong style=\"color:#1A1040;\"\u003eRelated reading:\u003c\/strong\u003e \u003ca href=\"\/blogs\/articles\/rust-removers-ranked-which-acid-works-best\" style=\"color:#5F59F7;font-weight:600;\"\u003eRust Removers Ranked: Which Acid Actually Works Best?\u003c\/a\u003e — See how phosphoric acid compares to oxalic, citric, muriatic and vinegar for rust removal.\u003c\/div\u003e\u003cdiv style=\"margin-top:18px;padding:14px 16px;background:#f7f6fc;border-left:4px solid #5f59f7;border-radius:8px;font-size:.95rem;\"\u003e\n\u003cstrong\u003e📘 Related reading:\u003c\/strong\u003e \u003ca href=\"\/blogs\/articles\/phosphoric-acid-uses-grades-rust-removal-and-lfp-batteries\"\u003ePhosphoric Acid: From Cola to EV Batteries — Uses, Grades \u0026amp; Rust Removal\u003c\/a\u003e — which grade and concentration you need, how phosphoric acid removes rust, food \u0026amp; beverage uses, and the LFP battery story.\u003c\/div\u003e","brand":"Alliance Chemical","offers":[{"title":"1 Quart \/ 1 Quart","offer_id":41279664259114,"sku":"RLG-JBH-JT1","price":18.38,"currency_code":"USD","in_stock":true},{"title":"1 Quart \/ 2 Quarts","offer_id":41279664291882,"sku":"V23-8SG-XMA","price":27.81,"currency_code":"USD","in_stock":true},{"title":"1 Quart \/ 4 Quarts","offer_id":41374778425386,"sku":"7YA-XKF-WQ0","price":44.69,"currency_code":"USD","in_stock":true},{"title":"1 Quart \/ 8 Quarts","offer_id":41374778458154,"sku":"AMC-LKT-7XB","price":84.92,"currency_code":"USD","in_stock":true},{"title":"1 Gallon \/ 1 Gallon","offer_id":41279664324650,"sku":"1Q0-RXG-GRQ","price":44.69,"currency_code":"USD","in_stock":true},{"title":"1 Gallon \/ 2 Gallons","offer_id":41374778490922,"sku":"EB2-CTN-SS3","price":84.92,"currency_code":"USD","in_stock":true},{"title":"1 Gallon \/ 4 Gallon Case","offer_id":41279664357418,"sku":"ZZQ-XWH-DFQ","price":157.33,"currency_code":"USD","in_stock":true},{"title":"1 Gallon \/ 4 Gallons x 36 Cases","offer_id":41891047571498,"sku":"JQ4-ZW8N-TX7B","price":3835.96,"currency_code":"USD","in_stock":true},{"title":"5 Gallon \/ 5 Gallon Pail","offer_id":41279664422954,"sku":"V9M-S4R-V3U","price":168.85,"currency_code":"USD","in_stock":true},{"title":"5 Gallon \/ 4 x 5 Gallon Pails","offer_id":41374778523690,"sku":"N1G-P48-WMJ","price":594.36,"currency_code":"USD","in_stock":true},{"title":"5 Gallon \/ 36 x 5 Gallons (Pallet)","offer_id":41884780101674,"sku":"VR2-FM5J-QS6K","price":4376.6,"currency_code":"USD","in_stock":true},{"title":"15 Gallon \/ 15 Gallon Drum","offer_id":41279664488490,"sku":"TBY-MSM-HPY","price":475.31,"currency_code":"USD","in_stock":true},{"title":"55 Gallon \/ 55 Gallon Drum","offer_id":41279664521258,"sku":"4NL-U7K-3VH","price":1479.92,"currency_code":"USD","in_stock":true},{"title":"55 Gallon \/ 4 x 55 Gallon Drums","offer_id":41279664554026,"sku":"KP8-NL3Y-HD4G","price":5209.32,"currency_code":"USD","in_stock":true},{"title":"275 Gallon \/ 275 Gallon IBC Tote","offer_id":41884780134442,"sku":"L3U-V6T-X7P","price":6149.33,"currency_code":"USD","in_stock":true},{"title":"330 Gallon \/ 330 Gallon IBC Tote","offer_id":43829838250026,"sku":"STK-UWG-QO7","price":7010.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0588\/2734\/1866\/products\/Phosphoric-Acid-30-1-Gallon.jpg?v=1748983716","url":"https:\/\/alliance-chemical-store.myshopify.com\/products\/phosphoric-acid-30-the-ultimate-rust-remover-solution","provider":"Alliance Chemical","version":"1.0","type":"link"}