Duty Rate (from China)
Subheadings
Products classified 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.
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.
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.
Lab Reagent Sodium Thiosulfate 0.1N Solution Powder
Pre-weighed sodium thiosulfate for preparing 0.1N titrant solutions in analytical chemistry, a pure chemically defined compound. It is classifiable under this tariff item as a thiosulphate, regardless of its laboratory use.
Magnesium Thiosulfate Solution 30%
30% magnesium thiosulfate solution (MgS2O3) for agricultural and textile applications. It is a chemically defined thiosulfate of magnesium in aqueous solution, classifiable under this tariff item as a thiosulphate.
Pharmaceutical Grade Sodium Thiosulfate USP
USP-grade sodium thiosulfate meeting pharmacopeia standards for medicinal use as an antidote. It is a chemically defined compound of sodium, classifiable under this tariff item as a thiosulphate, even though it is for pharmaceutical purposes.
Potassium Thiosulfate Crystals
Potassium thiosulfate (K2S2O3) crystals, used as an analytical reagent and in aquaculture dechlorination. It is a chemically defined thiosulfate of potassium, falling under this tariff item as a thiosulphate.
Sodium Thiosulfate for Photographic Fixing
High-purity sodium thiosulfate for photographic fixing, used as a hypo fixer to dissolve silver halides. It is a chemically defined sodium thiosulfate, classifiable under this tariff item as a thiosulphate.
Sodium Thiosulfate Pentahydrate
Sodium thiosulfate pentahydrate (Na2S2O3·5H2O), a colorless crystalline compound for photography and water treatment. It is a chemically defined thiosulfate of sodium, classifiable under this tariff item as a thiosulphate.
Sodium Thiosulfate Pentahydrate Crystals
Sodium thiosulfate pentahydrate crystals (Na2S2O3·5H2O), a separate chemically defined compound used in photography and water treatment. It falls under this tariff item as a thiosulphate of sodium.
Zinc Thiosulfate Hydrate
Zinc thiosulfate hydrate (ZnS2O3·H2O), used as a corrosion inhibitor and in photographic developers. It is a chemically defined thiosulfate of zinc, classifiable under this tariff item as a thiosulphate.