Complex cyanides
Cyanides, cyanide oxides and complex cyanides. > Complex cyanides > Complex cyanides
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Subheadings
Products classified under Tariff item 2837.20
ACS Reagent Potassium Ferricyanide
ACS reagent grade potassium ferricyanide, a pure and chemically defined complex cyanide of potassium and iron, used for high-precision titrations and spectroscopy. It is a separate chemically defined compound of inorganic bases, classifiable under heading 28.37 as a complex cyanide.
2837.20.00Cesium Tetraphenylborate
Cesium tetraphenylborate is a chemical compound used primarily in analytical chemistry for the detection and precipitation of cesium ions. Despite containing organic phenyl groups, it is classified as a complex cyanide of an inorganic base, falling under tariff item 2837.20.00. This compound is typically imported in powder form for laboratory or industrial use.
2837.20.00Copper Potassium Cyanide
Copper potassium cyanide, a complex cyanide used in copper electroplating baths. It is a chemically defined compound of inorganic bases (copper and potassium), classifiable under heading 28.37 as a complex cyanide.
2837.20.00Ferric Ammonium Ferrocyanide
Ferric ammonium ferrocyanide, also known as Prussian blue, a blue pigment used in paints and inks. It is a complex cyanide of iron and ammonium, classifiable under tariff item 2837.20.00 as a complex cyanide of inorganic bases.
2837.20.00Potassium Ferricyanide
Potassium ferricyanide, a red-orange complex cyanide salt used in blueprint photography and as an analytical reagent. It is a chemically defined complex cyanide of potassium and iron, classifiable under heading 28.37.
2837.20.00Potassium Ferricyanide Lab Crystals
Large crystal form of potassium ferricyanide for educational lab demonstrations of redox reactions, including Prussian blue formation. As a pure, chemically defined complex cyanide of potassium and iron, it falls under tariff item 2837.20.00.
2837.20.00Potassium Ferricyanide Powder
Pure potassium ferricyanide (K3[Fe(CN)6]) in fine powder form, a chemically defined complex cyanide used as an analytical reagent. It is a separate compound of inorganic bases, classifiable under heading 28.37 as a complex cyanide.
2837.20.00Potassium Ferrocyanide
Potassium ferrocyanide, also known as yellow prussiate of potash, used in wine production and as an anti-caking agent. It is a complex cyanide of potassium and iron, classifiable under tariff item 2837.20.00.
2837.20.00Silver Cyanide Complex
Silver cyanide complex salts used in electroplating and mirror manufacturing. These are complex cyanides of silver, an inorganic base, classifiable under heading 28.37 as complex cyanides.
2837.20.00Sodium Nitroprusside
Sodium nitroprusside, a complex cyanide salt used as a vasodilator in medical treatments. It is a chemically defined complex cyanide of sodium and iron, classifiable under tariff item 2837.20.00.
2837.20.00Technical Grade Potassium Ferricyanide
Technical grade potassium ferricyanide crystals for industrial blueprinting and photography processes. As a chemically defined complex cyanide of potassium and iron, it is classifiable under tariff item 2837.20.00.
2837.20.00Zinc Cyanide Complex
Zinc cyanide complexes employed in metal finishing and as catalysts. These are complex cyanides of zinc, an inorganic base, classifiable under heading 28.37 as complex cyanides.