Duty Rate (from China)
Products classified under Tariff item 2831.10.00.00
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.
2831.10.00Rongalite 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.
2831.10.00Sodium 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.
2831.10.00Sodium 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.
2831.10.00Sodium 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.
2831.10.00Sodium 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.
2831.10.00Sodium 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.
2831.10.00Sodium Hydrosulfite Powder 85%
> Sodium Hydrosulfite Powder 85% is a technical-grade sodium hydrosulfite with an 85% assay, used for pulp bleaching and as a mordant in leather processing. As a chemically defined sodium dithionite, it is classified under tariff item 2831.10.00. The product meets Chapter 28 Note 1(a) as a separate compound.
2831.10.00Technical Sodium Sulfoxylate Dihydrate
> Technical Sodium Sulfoxylate Dihydrate is sodium sulfoxylate dihydrate (NaHSO2·2H2O), used in polymer synthesis and as a bleach in the paper industry. It is a separate chemically defined compound of sodium, meeting Chapter 28 Note 1(a). It is classified under tariff item 2831.10.00 as a sulphoxylate of sodium.
2831.10.00Textile Dyeing Rongalite Auxiliary Chemical
> Textile Dyeing Rongalite Auxiliary Chemical is a specialty formulation of sodium formaldehyde sulfoxylate in powdered form, used for discharge printing on textiles. Despite the trade name, it is a chemically defined sodium sulphoxylate, not a preparation, and is classified under tariff item 2831.10.00. The product meets Chapter 28 Note 1(a) as a separate compound.
2831.10.00Zinc Formaldehyde Sulfoxylate
> Zinc Formaldehyde Sulfoxylate is a sulfoxylate derivative that contains zinc, but the candidate description incorrectly states it is a sulfoxylate of sodium. As a zinc compound, it does not fall under tariff item 2831.10.00, which is specific to sodium dithionites and sulphoxylates. Therefore, it is not classified under this tariff item.