Nitric Acid 70% Technical Grade

Product Overview

Nitric Acid 70% Technical Grade is a concentrated, strong mineral acid widely used in metal finishing and industrial processing. At 70% it is the standard concentrated strength for passivation tanks, pickling and bright-dip baths, and nitration and dissolution steps in chemical manufacturing. It is a powerful oxidizer that dissolves most common metals and strips oxide scale, which is why plating shops, fabricators, and chemical processors keep it on hand.

As an industrial chemical distributor, Alliance Chemical supplies this concentrated nitric acid to fabrication shops, plating and finishing lines, and chemical manufacturers. Explore our full range of acids in our acids collection. This product is used for surface preparation, metal dissolution, and chemical synthesis where oxidizing strength and consistent concentration are what the process depends on. Our Nitric Acid 70% Technical Grade is packaged and handled in compatible containers to maintain its concentration from our warehouse in Taylor, TX to your facility.

Why This Grade

Technical grade is the industrial tier of nitric acid: a 70% solution supplied for work where oxidizing strength and consistent concentration matter, but certified limits on trace impurities such as iron or chloride are not written into the process. Stainless steel passivation, pickling and descaling of steel, brightening and etching of brass and copper, dissolving metals and ores in industrial recovery and refining, and serving as a nitrating agent or intermediate in chemical manufacturing all run on this grade, and it is the cost-effective choice for them. Our electronics industry solutions page lists the acids we supply to that sector.

The 70% concentration is the standard concentrated strength of nitric acid and provides the oxidizing activity needed for controlled passivation and dissolution. A weaker or inconsistent solution can leave passivation incomplete and stainless steel vulnerable to premature corrosion. Our 70% Technical Grade is not supplied as ACS, reagent, or laboratory grade, and it does not carry a low-particle or trace-metal specification. If your protocol names one of those tiers, or your downstream analysis depends on certified trace-impurity limits, specify that grade when you order. A lot-specific Certificate of Analysis is available on request.

Industrial Applications

• Pickling and Brightening: Used in pickling and bright-dip baths to remove rust, heat tint, and tarnish from steel, brass, and copper parts before finishing.
• Metal Finishing and Passivation: Used in the aerospace and automotive sectors to passivate stainless steel surfaces by selectively dissolving free iron and forming a protective oxide layer.
• Ore and Metal Dissolution: Used to dissolve metals and ore concentrates in industrial refining and metal recovery operations.
• Chemical Synthesis: Acting as a key precursor and nitrating agent in the manufacture of various organic and inorganic compounds, polymers, and specialty chemical intermediates.
• Industrial Equipment Descaling: Utilized in critical maintenance protocols to dissolve hard calcium deposits and metal oxides from specialized industrial heat exchangers and processing lines.

Hazmat & Shipping

Nitric Acid 70% Technical Grade is a highly regulated hazardous material classified under international transport protocols. This chemical is shipped as UN2031, Hazard Class 8, with Packing Group II. The official proper shipping name is Nitric acid, other than red fuming, with at least 65 percent, but not more than 70 percent nitric acid. Due to its corrosive and oxidizing nature, the GHS signal word is Danger, and it carries the GHS pictograms for Oxidizer, Corrosive, and Acute Toxic. These classifications highlight the critical necessity of strict adherence to all DOT and international shipping guidelines to ensure safe transit and delivery.

When handling this material, personnel must use appropriate personal protective equipment (PPE) as dictated by the GHS classification codes. Keyed to hazard statement H314 Causes severe skin burns and eye damage [Danger Skin corrosion/irritation] and H330 Fatal if inhaled [Danger Acute toxicity, inhalation], operators must wear chemical-resistant gloves, full protective suits, and goggles or face shields. Since it is a powerful oxidizer that May cause fire or explosion; strong oxidizer (H271) and May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids] (H272), it must be handled away from combustible materials and organic substances. Respiratory protection is mandatory when handling this material in non-ventilated areas to avoid the severe risk of inhalation.

Handling & Storage

Safe handling of this concentrated mineral acid requires strict storage protocols. Nitric Acid 70% must be stored in cool, dry, well-ventilated facilities, ideally within a temperature range of 50°F to 80°F, away from direct sunlight. Container compatibility is crucial; the chemical must be kept in its original fluoropolymer, glass, or specially treated stainless steel containers. It is highly incompatible with organic materials, combustible substances, strong bases, active metals, and reducing agents, as contact can lead to violent, exothermic reactions or the evolution of hazardous nitrogen oxides.

Order & Documentation

At Alliance Chemical, we ensure full transparency and compliance for all chemical shipments. Our products are backed by robust quality controls, and a comprehensive Safety Data Sheet (SDS) is provided with every order to ensure your team is fully informed on handling protocols. To acquire this product for your facility, you can Order Nitric Acid 70% Technical Grade directly or Request a Quote for bulk purchases.

Why Buy from Alliance Chemical

Since 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.