2831.10.50.00/Sodium Dithionite 88% Technical Grade/China

Sodium Dithionite 88% Technical Grade from China

Sodium dithionite (Na2S2O4), also known as sodium hydrosulfite, at 88% purity in powder form for industrial applications such as textile bleaching and vat dyeing. This chemically defined inorganic compound falls under HTS 2831.10.5000 as a dithionite of sodium, other than those stabilized with organic substances. It is commonly used in reducing processes in chemical manufacturing.

Duty Rate — China → United States

40.5%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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Import Tips

• Verify purity and chemical composition via lab analysis to confirm classification under 2831.10.5000, avoiding misclassification as stabilized products in 2831.10.10

• Include Safety Data Sheets (SDS) and TSCA certification for U.S

• EPA compliance, as dithionites are hazardous materials

• Ensure proper packaging labels for UN 1384 hazardous substance to prevent customs delays