Anhydrous Sodium Thiosulfate Powder
Anhydrous sodium thiosulfate (Na2S2O3) in white powder form, a separate chemically defined compound of sodium. It is used in gold extraction and as a dechlorinator in water treatment, and qualifies under tariff item 2832.30.00 as a thiosulphate.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is actually sodium sulphite rather than thiosulfate
Sodium sulphite is a separate compound classified under sulphites, not thiosulfates.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the product is pure sodium thiosulfate with no added organic stabilizers, as those may shift classification
• Provide a certificate of analysis to confirm chemical identity
• Verify if the powder is for industrial or laboratory use, as end-use may affect other requirements
Related Products under Tariff item 2832.30.00
Ammonium Thiosulfate Solution
Ammonium thiosulfate ((NH4)2S2O3) in aqueous solution, used as a fertilizer additive and in gold leaching. It is a chemically defined thiosulfate of ammonium, classifiable under this tariff item as a thiosulphate.
Aquarium Dechlorinator Sodium Thiosulfate
Concentrated sodium thiosulfate solution crystals for aquarium dechlorination, consisting of the pure sodium thiosulfate salt. Despite its retail purpose, it remains a chemically defined thiosulfate of sodium, classifiable under this tariff item.
Barium Thiosulfate Anhydrous
Barium thiosulfate (BaS2O3) anhydrous, a specialty chemical for pyrotechnics and analytical reagent use. It is a chemically defined thiosulfate of barium, falling under this tariff item as a thiosulphate.
Calcium Thiosulfate Powder
Calcium thiosulfate (CaS2O3) powder, used in rubber processing and wastewater treatment. It is a chemically defined thiosulfate of calcium, classifiable under this tariff item as a thiosulphate.
Gold Mining Sodium Thiosulfate Extractant
Technical grade sodium thiosulfate used as a lixiviant in gold leaching processes, a chemically defined compound of sodium. Its industrial application does not alter its classification as a thiosulphate under this tariff item.
Industrial Grade Sodium Thiosulfate Flakes
Sodium thiosulfate flakes for industrial applications such as paper bleaching and leather tanning, acting as an antichlor agent. It is a chemically defined sodium thiosulfate, falling under this tariff item as a thiosulphate.