Nitric Acid Shipping: Strong Oxidizing Acid Class 8/5.1 IATA IMDG Guide

Shipping Nitric Acid Under Dual Corrosive-Oxidizer Regulations

Nitric acid combines Class 8 (Corrosive) with Class 5.1 (Oxidizer) subsidiary risk, making it one of the more complex dangerous goods to ship under IATA DGR and IMDG Code. Its powerful oxidizing properties create fire and explosion risks when in contact with organic materials, while its extreme corrosivity demands acid-resistant packaging and handling throughout transport.

Concentration-Based Classification

Nitric acid classification varies by concentration. Red fuming nitric acid (UN2032, Class 8/5.1, PG I) is the most hazardous form. Concentrated nitric acid above 70% (UN2031, Class 8/5.1, PG I) follows similar restrictions. Solutions between 65-70% are PG II, and below 65% are PG III. White fuming nitric acid has distinct properties from red fuming, affecting handling procedures.

IATA DGR Air Transport

Air shipping of nitric acid under IATA DGR is heavily restricted for concentrated forms. PG I fuming nitric acid is forbidden on passenger aircraft and faces severe cargo aircraft limitations. Lower concentrations with PG II/III classifications have less restrictive but still significant requirements. Air freight of nitric acid samples for laboratory testing represents the primary air transport application.

IMDG Code Ocean Transport

Ocean transport of nitric acid under the IMDG Code uses acid-resistant stainless steel ISO tanks, aluminum drums (for certain concentrations), and specialty containers. Stowage must address both corrosive and oxidizer properties, with separation from organic materials, flammable liquids, and reducing agents. Port handling requires acid-resistant PPE and immediate access to neutralization materials.

Industrial Applications

Nitric acid serves explosives manufacturing, fertilizer production (ammonium nitrate), metal etching, and chemical synthesis. Bulk tanker transport of nitric acid requires stainless steel tanks and drivers trained in both corrosive and oxidizer emergency response. Storage facilities must prevent nitric acid contact with organic materials that could spontaneously ignite.

Compatibility and Segregation

Nitric acid’s oxidizing nature makes it incompatible with a wide range of materials including organic chemicals, flammable liquids, reducing agents, and many metals. Logistics planners must verify compatibility for every co-loaded product and maintain physical separation per IMDG segregation tables throughout storage and transport.

Go Freight’s Oxidizing Acid Logistics

Go Freight ships nitric acid from South Florida. Our dual-hazard team manages the corrosive and oxidizer compliance requirements that nitric acid shipments demand across all transport modes.