Nitric Acid & Sulfonitric Acids

Nitric acid and mixed sulfonitric acids — used in explosives manufacturing, fertilizer production, metal etching, and pharmaceutical synthesis — are split at the 10-digit level into nitric acid (2808000010) and sulfonitric acids (2808000020). Canada is the primary US supplier, with Germany and South Korea serving as important sources for high-purity and specialty grades. Both substances are classified as oxidizing hazardous materials under DOT regulations, and sulfonitric acid mixtures (used in nitration reactions) carry additional handling complexity due to their combined corrosive and oxidizing properties.