{"product_id":"nitric-acid-25","title":"Nitric Acid 25%","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eOur \u003ca href=\"\/products\/nitric-acid-25\"\u003eNitric Acid 25%\u003c\/a\u003e (CAS 7697-37-2) is a highly corrosive mineral acid featuring the molecular formula HNO3 and a molecular weight of 63.013. This specific concentration represents a standard aqueous solution used extensively across industrial, manufacturing, and laboratory workflows where controlled acidity and strong oxidizing properties are required. As a primary chemical distributor based in Texas, Alliance Chemical supplies this \u003ca href=\"\/collections\/acids\"\u003eacids\u003c\/a\u003e product to support demanding processes ranging from metal surface preparations to chemical syntheses, ensuring a consistent and reliable supply chain for our commercial partners.\u003c\/p\u003e\u003cp\u003eOur Nitric Acid 25% is formulated to rigorous industrial standards, providing a balanced solution that minimizes the handling risks associated with more concentrated fuming grades while delivering the chemical activity required for surface passivation, etching, and pH adjustment. Each batch is subjected to thorough quality control protocols to ensure assay accuracy, density conformity, and low trace impurity levels. Industrial buyers rely on this concentration to streamline their internal preparation processes, avoiding the hazards of in-house dilution of highly concentrated acids.\u003c\/p\u003e\u003ch3\u003eWhy This Grade\u003c\/h3\u003e\u003cp\u003eSelecting a pre-formulated Nitric Acid 25% concentration over stronger options is critical for processes that require precise reaction kinetics and strict temperature management. Operating at a 25% concentration provides a reliable safety margin during exothermic reactions, preventing rapid thermal runaway and excessive nitrogen dioxide outgassing. Many automated dosing systems in chemical manufacturing and metal finishing lines are calibrated specifically for this concentration, where a deviation in acid strength would compromise process control.\u003c\/p\u003e\u003cp\u003eUsing an incorrect concentration or grade of nitric acid can lead to severe operational failure modes, including the over-etching of delicate substrates, complete destruction of protective passive layers on stainless steel, and accelerated corrosion of process equipment. If a lower grade or contaminated source is introduced, trace metallic impurities can cause catalytic decomposition of neighboring reagents or leave undesirable residues on clean surfaces. By utilizing our standardized 25% concentration, operators ensure predictable passivation rates and protect high-value alloy equipment from catastrophic failure.\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\u003e7697-37-2\u003c\/dd\u003e\n\u003cdt\u003eChemical Formula\u003c\/dt\u003e\n\u003cdd\u003eHNO3\u003c\/dd\u003e\n\u003cdt\u003eMolecular Weight\u003c\/dt\u003e\n\u003cdd\u003e63.013 g\/mol\u003c\/dd\u003e\n\u003cdt\u003eBoiling Point\u003c\/dt\u003e\n\u003cdd\u003e181 °F at 760 mmHg (NIOSH, 2024)\u003c\/dd\u003e\n\u003cdt\u003eMelting Point\u003c\/dt\u003e\n\u003cdd\u003e-44 °F (NIOSH, 2024)\u003c\/dd\u003e\n\u003cdt\u003eSpecific Gravity\u003c\/dt\u003e\n\u003cdd\u003e1.5 at 77 °F (NIOSH, 2024) - Denser than water; will sink\u003c\/dd\u003e\n\u003cdt\u003eAppearance\u003c\/dt\u003e\n\u003cdd\u003eNitric acid, other than red fuming appears as a pale yellow to reddish brown liquid with reddish brown vapors and a suffocating odor. Very toxic by inhalation. Corrosive to metals or tissue. Accelerates the burning of combustible material and may cause ignition of combustible materials upon contact. Prolonged exposure to low concentrations or short term exposure to high concentrations may result in adverse health effects. Density 12 lb \/ gal.\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\u003eUN2031\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\u003eII\u003c\/dd\u003e\n\u003cdt\u003eProper Shipping Name\u003c\/dt\u003e\n\u003cdd\u003eNitric acid, other than red fuming, with less than 65 percent nitric acid\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\u003cul\u003e\n\u003cli\u003eMetal passivation and cleaning: Used in the aerospace and marine industries to passivate stainless steel surfaces, removing free iron and preventing corrosion on machined parts.\u003c\/li\u003e\n\u003cli\u003eIndustrial pH adjustment: Serves as a highly effective agent for adjusting pH in large-scale wastewater treatment facilities and chemical manufacturing neutralization processes.\u003c\/li\u003e\n\u003cli\u003eSemiconductor and electronics etching: Applied as a precise chemical etchant in microelectronics fabrication to clean silicon wafers and prepare semiconductor surfaces for subsequent processing.\u003c\/li\u003e\n\u003cli\u003eFertilizer and chemical synthesis: Acts as a crucial intermediate reactant in the production of nitrogen-based compounds, specialized nitrate salts, and organic chemical syntheses.\u003c\/li\u003e\n\u003cli\u003eEquipment cleaning-in-place (CIP): Utilized in dairy and beverage processing plants to remove inorganic milkstone deposits and mineral scales from stainless steel piping systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHazmat \u0026amp; Shipping\u003c\/h3\u003e\u003cp\u003eNitric Acid 25% is classified as a hazardous material for transport and must be handled in strict accordance with Department of Transportation regulations. The canonical transport information designates this material as UN2031, Hazard Class 8, Packing Group II, with the verbatim Proper Shipping Name: Nitric acid, other than red fuming, with less than 65 percent nitric acid. The assigned signal word is Danger. Due to its regulated status, shipping requires specialized packaging, specific hazard labeling, and transport via authorized carriers to ensure compliance and safety throughout the logistics chain.\u003c\/p\u003e\u003cp\u003eThe GHS classification for this substance contains critical hazard statements, specifically H272, H314, and H330. Consequently, appropriate personal protective equipment (PPE) is mandatory when handling this chemical. Operators must utilize chemical-resistant splash goggles, full face shields, heavy-duty acid-resistant gloves (such as neoprene or nitrile), and protective chemical aprons or full suits. Furthermore, since the substance is fatal if inhaled (H330), processes should be conducted within a certified fume hood or ventilated enclosure, and NIOSH-approved respirators equipped with acid gas cartridges must be readily accessible in accordance with facility exposure control plans.\u003c\/p\u003e\u003ch3\u003eHandling \u0026amp; Storage\u003c\/h3\u003e\u003cp\u003eSafe handling of Nitric Acid 25% requires storage in cool, dry, and well-ventilated areas, ideally maintained within a stable temperature range of 50°F to 77°F to prevent thermal stress on containers and vapor pressure accumulation. This corrosive liquid must be kept in compatible containers such as high-density polyethylene (HDPE), fluoropolymer plastics, or glass, and must never be stored in mild steel, copper, or brass vessels. It is critical to segregate this powerful oxidizer from incompatible substances including organic chemicals, combustible materials, strong bases, active metals, and reducing agents, as contact can trigger violent reactions, heat generation, or ignition.\u003c\/p\u003e\u003ch3\u003eOrder \u0026amp; Documentation\u003c\/h3\u003e\u003cp\u003eAlliance Chemical provides comprehensive documentation and regulatory support for all industrial chemical orders. A Certificate of Analysis (COA) is available upon request for every batch shipped, ensuring trace analysis and concentration accuracy align with your quality management system requirements. Additionally, a detailed Safety Data Sheet (SDS) is provided with every order to support your facility hazard communication program. To secure your supply or to inquire about bulk distribution, please \u003ca href=\"\/pages\/contact\"\u003eRequest a Quote\u003c\/a\u003e or \u003ca href=\"\/pages\/safety-data-sheets\"\u003eDownload the SDS\u003c\/a\u003e.\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","brand":"Alliance Chemical","offers":[{"title":"1 Liter \/ 1 Liter","offer_id":41340164997162,"sku":"KF5-DDG-MWR","price":25.0,"currency_code":"USD","in_stock":true},{"title":"1 Liter \/ 2 Liters","offer_id":41340165029930,"sku":"KZD-AHY-5MM","price":44.0,"currency_code":"USD","in_stock":true},{"title":"1 Liter \/ 4 Liters","offer_id":41340165095466,"sku":"3EC-C93-AMS","price":70.0,"currency_code":"USD","in_stock":true},{"title":"2.5 Liter \/ 2.5 Liters","offer_id":41340165128234,"sku":"5VN-9EV-5BO","price":47.0,"currency_code":"USD","in_stock":true},{"title":"2.5 Liter \/ 4 x 2.5 Liters Case","offer_id":41340165161002,"sku":"P0G-UD8-LIS","price":97.0,"currency_code":"USD","in_stock":true},{"title":"55 Gallon \/ 55 Gallon Poly Drum","offer_id":41340165193770,"sku":"5IX-PCU-2HV","price":820.0,"currency_code":"USD","in_stock":true},{"title":"55 Gallon \/ 4 x 55 Gallon Poly Drums","offer_id":42185478701098,"sku":"GMW-EKY-HMJ","price":2850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0588\/2734\/1866\/files\/Nitric-Acid-25-1-Liter_cdc61a85-781a-4064-aa31-fcd3369aa24f.jpg?v=1748983751","url":"https:\/\/alliance-chemical-store.myshopify.com\/products\/nitric-acid-25","provider":"Alliance Chemical","version":"1.0","type":"link"}