Sodium Formaldehyde Sulfoxylate 99% Pure Crystals
> Sodium Formaldehyde Sulfoxylate 99% Pure Crystals is a high-purity crystalline compound used in chemical synthesis and as a bleaching assistant in paper manufacturing. It is a separate chemically defined compound of sodium, satisfying Chapter 28 Note 1(a). It is correctly classified under tariff item 2831.10.00 as a sulphoxylate of sodium.
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 |
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
• > Include the purity percentage and molecular formula on the invoice to confirm classification
• Verify that the product is not doped for electronics, which would fall under heading 38.18 per Chapter 28 Note 8
• Ensure proper packaging labelling for hazardous goods if applicable
Related Products under Tariff item 2831.10.00
Industrial Sodium Hydrosulfite Substitute Rongalite
> Industrial Sodium Hydrosulfite Substitute Rongalite is a stable, free-flowing powder of sodium formaldehyde sulfoxylate, used as a reducing agent in bleaching and dechlorination processes for pulp and textiles. It is a separate chemically defined inorganic compound of sodium, meeting the scope of Chapter 28 Note 1(a). It falls under tariff item 2831.10.00 as a sulphoxylate of sodium.
Rongalite C Technical Grade
> Rongalite C Technical Grade is a commercial form of sodium formaldehyde sulfoxylate, supplied as a white, free-flowing powder for industrial vat dyeing. As a chemically defined sodium sulphoxylate, it is classified under tariff item 2831.10.00. The technical grade does not alter its identity as a separate compound.
Sodium Dithionite 88% Technical Grade
> Sodium Dithionite 88% Technical Grade is sodium dithionite (Na2S2O4), also known as sodium hydrosulfite, in powder form for industrial textile bleaching and vat dyeing. It is a separate chemically defined inorganic compound of sodium, meeting Chapter 28 Note 1(a). It is classified under tariff item 2831.10.00 as a dithionite of sodium.
Sodium Dithionite Flakes Industrial
> Sodium Dithionite Flakes Industrial is a flaked form of sodium dithionite for easier handling in wastewater treatment and food processing decolorization. As a chemically defined sodium dithionite, it is classified under tariff item 2831.10.00. The flake form does not affect its classification as a separate compound.
Sodium Dithionite for Dyeing 90% Min
> Sodium Dithionite for Dyeing 90% Min is a high-purity sodium dithionite with a minimum 90% assay, used for indigo dyeing in denim production. It is a separate chemically defined compound of sodium, meeting Chapter 28 Note 1(a). It falls under tariff item 2831.10.00 as a dithionite of sodium.
Sodium Formaldehyde Sulfoxylate Dihydrate Powder
> Sodium Formaldehyde Sulfoxylate Dihydrate Powder is a white crystalline powder with the chemical formula NaHSO2·CH2O·2H2O, used as a reducing agent in textile dyeing and bleaching. As a hydrate of a sodium sulphoxylate, it is a separate chemically defined compound under Chapter 28 Note 1(a). It falls under tariff item 2831.10.00.