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Cyanides, cyanide oxides and complex cyanides. > Cyanides and cyanide oxides: > Other > Other
Duty Rate (from China)
Subheadings
Products classified under Tariff item 2837.19
Barium Cyanide Granules
Barium cyanide granules (Ba(CN)2) are used in chemical synthesis and water treatment. They are a chemically defined simple cyanide of barium, an inorganic base. The product meets Chapter 28 Note 1 and is classified under this tariff item as 'other' cyanides.
2837.19.00Barium Cyanide Powder
Barium cyanide (Ba(CN)2) is a fine white powder used in specialty chemical manufacturing, including the production of other barium compounds and as a reagent in organic synthesis. It is a simple cyanide of an inorganic base, barium, and meets the chemical definition criteria of Chapter 28 Note 1. It is not a complex cyanide, so it falls under tariff item 2837.19.00 for other cyanides.
2837.19.00Cadmium Cyanide Crystals
Cadmium cyanide crystals (Cd(CN)2) are used in cadmium electroplating for corrosion-resistant coatings. They are a chemically defined simple cyanide of cadmium, an inorganic base. The crystalline form does not affect classification under this tariff item.
2837.19.00Cadmium Cyanide Fine Powder
Cadmium cyanide (Cd(CN)2) is a fine powder used in cadmium electroplating to produce corrosion-resistant coatings on metals. It is a simple cyanide of an inorganic base, cadmium, and is chemically defined as per Chapter 28 Note 1. It is not a complex cyanide, so it is classified under tariff item 2837.19.00 for other cyanides.
2837.19.00Calcium Cyanide 70% Technical Solution Precursor
Calcium cyanide at 70% technical concentration is a chemically defined compound of calcium and cyanide, used as a precursor for on-site solution making in mining. It is a simple cyanide of an inorganic base, falling under this tariff item. The concentration does not affect classification as long as it is a separate compound.
2837.19.00Calcium Cyanide Ca(CN)2 Powder
Calcium cyanide powder (Ca(CN)2) is a white crystalline powder used in gold mining for ore extraction via cyanidation. It is a chemically defined simple cyanide of calcium, an inorganic base. The product meets Chapter 28 Note 1 and is classified under this tariff item as 'other' cyanides.
2837.19.00Calcium Cyanide Granules
Calcium cyanide (Ca(CN)2) is supplied as granules for use in water treatment and as a fumigant in agriculture. It is a simple cyanide of an inorganic base, calcium, and is chemically defined under Chapter 28 Note 1. It is not a complex cyanide, so it falls under tariff item 2837.19.00 for other cyanides.
2837.19.00Cobalt Cyanide Granular
Cobalt cyanide (Co(CN)2) is a granular inorganic compound used as a catalyst precursor in various chemical reactions, including hydroformylation. It is a simple cyanide of an inorganic base, cobalt, and meets the chemical definition criteria of Chapter 28 Note 1. It is not a complex cyanide, so it is classified under tariff item 2837.19.00.
2837.19.00Copper Cyanide Technical Grade
Copper(I) cyanide (CuCN) technical grade powder is an intermediate in organic synthesis and copper plating baths. It is a chemically defined simple cyanide of copper, an inorganic base. The technical grade does not exclude it from Chapter 28, as it remains a separate compound.
2837.19.00Cuprous Cyanide Powder
Cuprous cyanide (CuCN) is a white to cream powder used primarily in copper electroplating baths and as a catalyst in organic synthesis. It is a simple cyanide of an inorganic base, copper(I), and is chemically defined per Chapter 28 Note 1. It is not a complex cyanide, so it falls under tariff item 2837.19.00 for other cyanides.
2837.19.00Gold(I) Cyanide Complex
Gold(I) cyanide (AuCN) is a chemically defined inorganic compound of gold used primarily in jewelry electroplating baths. Although it is a simple cyanide of a precious metal, it is classified under this tariff item as 'other' cyanides of inorganic bases. The compound meets the requirements of Chapter 28 Note 1 as a separate chemically defined compound.
2837.19.00Gold Potassium Cyanide
Potassium gold cyanide (KAu(CN)2) is a complex cyanide of gold and potassium, used in gold electroplating. It is a chemically defined compound of a precious metal and an inorganic base. Although it is a complex cyanide, it falls under this tariff item as 'other' cyanides, subject to Section Note 1(B) of Chapter 28.
2837.19.00High-Purity Calcium Cyanide for Laboratory Use
High-purity calcium cyanide (99%+) for laboratory use is a chemically defined compound of calcium and cyanide. It is a simple cyanide of an inorganic base, used in analytical chemistry. The high purity does not change its classification under this tariff item.
2837.19.00Industrial Grade Calcium Cyanide Granules
Granular calcium cyanide is an industrial chemical used in froth flotation for mineral extraction, particularly silver and gold recovery. It is a chemically defined simple cyanide of calcium. The granular form is a physical variation that does not affect classification under this tariff item.
2837.19.00Industrial Potassium Cyanide Briquettes
Industrial potassium cyanide briquettes are compressed forms of KCN designed for safe handling in mining operations, particularly for gold extraction. They are a simple cyanide of an inorganic base, potassium, and are chemically defined under Chapter 28 Note 1. The briquette form does not affect classification, so they fall under tariff item 2837.19.00.
2837.19.00Laboratory Reagent Potassium Cyanide
Potassium cyanide (KCN) in ACS reagent grade is a separate chemically defined inorganic compound of potassium. It is a simple cyanide of an inorganic base, falling squarely under the 'other' cyanides of this tariff item. The high purity for laboratory use does not affect its classification under Chapter 28.
2837.19.00Lithium Cyanide Pellets
Lithium cyanide (LiCN) is supplied as pellets for research applications, particularly in battery material development and organic synthesis. It is a simple cyanide of an inorganic base, lithium, and is chemically defined under Chapter 28 Note 1. It is not a complex cyanide, so it is classified under tariff item 2837.19.00.
2837.19.00Mercuric Cyanide Reagent
Mercuric cyanide (Hg(CN)2) is a reagent-grade chemical used in analytical chemistry for various titration and detection methods. It is a simple cyanide of an inorganic base, mercury, and is chemically defined per Chapter 28 Note 1. It is not a complex cyanide, so it falls under tariff item 2837.19.00.
2837.19.00Nickel Cyanide for Electroplating
Nickel cyanide [Ni(CN)2] is a specialized inorganic chemical used as a source of nickel in electroplating solutions, particularly for automotive parts finishing. As a separate chemically defined compound of an inorganic base, it falls under tariff item 2837.19.00 for other cyanides.
2837.19.00Nickel Cyanide Tetrahydrate
Nickel cyanide tetrahydrate (Ni(CN)2·4H2O) is used in nickel electroplating solutions to provide a source of nickel ions. It is a simple cyanide of an inorganic base, nickel, and is chemically defined under Chapter 28 Note 1. The hydrated form is still classified as a simple cyanide, so it falls under tariff item 2837.19.00.
2837.19.00Pharmaceutical Potassium Cyanide Crystals
High-purity potassium cyanide crystals of USP grade are a chemically defined simple cyanide of potassium. Used in specialized chemical synthesis, the product meets Chapter 28 Note 1 criteria as a separate compound. It is classified under this tariff item as 'other' cyanides of inorganic bases.
2837.19.00Potassium Cyanide Crystals
Potassium cyanide (KCN) in crystalline powder form is used in organic synthesis, metal hardening, and electroplating. It is a simple cyanide of an inorganic base, potassium, and is chemically defined per Chapter 28 Note 1. It is not a complex cyanide, so it falls under tariff item 2837.19.00.
2837.19.00Potassium Cyanide White Powder
Potassium cyanide in white crystalline powder form is a pure, chemically defined simple cyanide of potassium. It is an inorganic compound of an inorganic base, meeting the Chapter 28 Note 1 definition. The physical form (powder) does not alter its classification under this tariff item.
2837.19.00Potassium Ferricyanide Powder
Potassium ferricyanide [K3Fe(CN)6] is a red crystalline complex cyanide salt used in blueprint photography, analytical chemistry, and as a mild oxidizing agent. As a chemically defined complex cyanide of an inorganic base, it is classified under tariff item 2837.19.00 for other cyanides.
2837.19.00Potassium Nickel Cyanide Complex
Tripotassium nickelocyanide [K3Ni(CN)5] is a complex cyanide salt used as a source of nickel in bright nickel electroplating baths. As a chemically defined complex cyanide of an inorganic base, it falls under tariff item 2837.19.00 for other cyanides.
2837.19.00Silver Cyanide Powder
Silver cyanide (AgCN) is a white powder used in silver mirror plating and photographic emulsions. As a separate chemically defined inorganic compound of a precious metal base, it is classified under tariff item 2837.19.00 for other cyanides.
2837.19.00Silver Cyanide Precipitate
Silver cyanide (AgCN) is a precipitated powder used in mirror manufacturing and as a precursor for silver plating solutions. It is a simple cyanide of an inorganic base, silver, and is chemically defined under Chapter 28 Note 1. Despite containing a precious metal, it is classified as a simple cyanide under tariff item 2837.19.00.
2837.19.00Sodium Cyanide Briquettes
Sodium cyanide (NaCN) in compressed briquette form is used primarily in gold mining for leaching processes and in electroplating. It is a simple cyanide of an inorganic base, sodium, and is chemically defined per Chapter 28 Note 1. It is not a complex cyanide, so it falls under tariff item 2837.19.00.
2837.19.00Sodium Cyanide Crystals
Sodium cyanide (NaCN) in crystalline form is a highly toxic inorganic salt used primarily in gold mining for extracting gold from ore via cyanidation. As a separate chemically defined simple cyanide of an inorganic base, it falls under tariff item 2837.19.00 for other cyanides.
2837.19.00Sodium Cyanide Prills
Sodium cyanide prills are spherical, high-purity forms of NaCN optimized for rapid dissolution in mining operations. They are a simple cyanide of an inorganic base, sodium, and are chemically defined under Chapter 28 Note 1. The physical form (prills) does not affect classification, so they fall under tariff item 2837.19.00.
2837.19.00Stabilized Calcium Cyanide Briquettes for Mining
Stabilized calcium cyanide briquettes are compressed forms designed for easy dissolution in mining leach tanks for gold cyanidation. They are a chemically defined simple cyanide of calcium. The addition of a stabilizer for transport is permitted under Chapter 28 Note 1(d), so classification remains under this tariff item.
2837.19.00Strontium Cyanide Flakes
Strontium cyanide (Sr(CN)2) is supplied in flake form for use in pyrotechnics and research applications. It is a simple cyanide of an inorganic base, strontium, and is chemically defined under Chapter 28 Note 1. It is not a complex cyanide, so it is classified under tariff item 2837.19.00.
2837.19.00Technical Grade Calcium Cyanide Flakes
Technical-grade calcium cyanide flakes are produced for electroplating baths and metal hardening processes. They are a chemically defined simple cyanide of calcium. The flake form is a physical state that does not alter classification under this tariff item.
2837.19.00Technical Grade Potassium Cyanide Flakes
Technical-grade potassium cyanide in flake form is a chemically defined simple cyanide of potassium, used in extraction metallurgy. The technical purity does not exclude it from Chapter 28, as it remains a separate compound. It is classified under this tariff item as 'other' cyanides of inorganic bases.
2837.19.00Zinc Cyanide Crystals
Zinc cyanide (Zn(CN)2) crystals are used in zinc electroplating to provide a source of zinc ions in the plating bath. It is a simple cyanide of an inorganic base, zinc, and is chemically defined per Chapter 28 Note 1. It is not a complex cyanide, so it falls under tariff item 2837.19.00.
2837.19.00Zinc Cyanide Flakes
Zinc cyanide [Zn(CN)2] in flake form is used in zinc electroplating processes and as a catalyst precursor. As a separate chemically defined simple inorganic cyanide of a zinc base, it is classified under tariff item 2837.19.00 for other cyanides.