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

2831.10.10.00 - Sodium formaldehyde sulfoxylate 🖩

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 Duty35%
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 classification covers sodium formaldehyde sulfoxylate, a specific inorganic chemical compound. It is characterized by its chemical composition and its primary industrial uses, which often involve its properties as a reducing agent. Typical applications include its use as a bleaching agent in the textile industry, as a photographic chemical, and in various chemical syntheses.

This particular HTS code, 2831.10.10.00, distinguishes sodium formaldehyde sulfoxylate from other dithionites and sulfoxylates of sodium, such as those covered under the sibling category 2831.10.50.00, which are described as "Other." The distinction lies in the specific chemical structure; this code is for the compound formed with formaldehyde, whereas other sodium sulfoxylates may have different organic moieties or be unspecified within the "Other" category.

As a leaf node within the HTS system, there are no further subcategories under 2831.10.10.00. This means that any product meeting the description of sodium formaldehyde sulfoxylate would be classified directly under this code, provided it aligns with the broader classification scope of dithionites and sulfoxylates of sodium within Chapter 28 of the Harmonized Tariff Schedule.

Frequently Asked Questions

›What is HTS code 2831.10.10.00?
HTS code 2831.10.10.00 covers Sodium formaldehyde sulfoxylate 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 2831.10.10.00?
This classification covers Sodium formaldehyde sulfoxylate. It is a subcategory of Of sodium: (2831.10).
›What is the import duty rate for 2831.10.10.00?
The general rate of duty for HTS 2831.10.10.00 is Free. The Column 2 rate is 35%.
›What unit of quantity is used for 2831.10.10.00?
Imports under HTS 2831.10.10.00 are measured in kg.
Go up to 2831.10 · Go up to Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes

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