💾 Data Updated: Latest version • Last updated: December 09, 2025

2808.00.00.20 - Sulfonitric acids 🖩

Details

FieldValue
Unit of Quantitykg
General Rate of Duty (Column 1 - General)Free
Special Rate of Duty (Column 1 - Special)N/A
Column 2 Rate of DutyFree
Quota QuantityN/A
Additional DutiesN/A
About Duty Rates: Rates are divided into Column 1 and Column 2. Column 1 is subdivided into General (normal trade relations rates for all countries not eligible for special programs) and Special (preferential rates for countries with free trade agreements or preference programs). Column 2 rates apply to products from Cuba, North Korea, Belarus, and Russia. When no special rate exists for a classification, General rates apply.

Overview

This HTS classification covers sulfonitric acids. Sulfonitric acids are a mixture of nitric acid and sulfuric acid, typically used as a nitrating agent in various industrial processes, particularly in the production of explosives, dyes, and organic chemicals. Their characteristic is the presence of both nitrosonium ions and sulfate ions, contributing to their strong oxidizing and dehydrating properties.

This category is distinct from its sibling, 2808.00.00.10, which specifically covers nitric acid. While nitric acid is a component of sulfonitric acids, this classification is reserved for the combined mixture, not pure nitric acid. The presence of sulfuric acid alters the chemical properties and applications of the mixture, making it a separate classification for customs purposes.

As this is a leaf node, there are no further subcategories. Classification under 2808.00.00.20 is definitive for any product meeting the description of sulfonitric acids. Practical classification will rely on chemical analysis confirming the presence and relative proportions of both nitric and sulfuric acids, and its intended industrial application as a nitrating agent.

Frequently Asked Questions

›What is HTS code 2808.00.00.20?
HTS code 2808.00.00.20 covers Sulfonitric acids under the US Harmonized Tariff Schedule. It falls under Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes.
›What products are classified under 2808.00.00.20?
This classification covers Sulfonitric acids. It is a subcategory of Nitric acid; sulfonitric acids (2808.00.00).
›What is the import duty rate for 2808.00.00.20?
The general rate of duty for HTS 2808.00.00.20 is Free. The Column 2 rate is Free.
›What unit of quantity is used for 2808.00.00.20?
Imports under HTS 2808.00.00.20 are measured in kg.

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