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2837.20.10.00

Cyanides, cyanide oxides and complex cyanides / Complex cyanides / Potassium ferricyanide

Classification path

  1. Cyanides, cyanide oxides and complex cyanides
  2. Complex cyanides
  3. Potassium ferricyanide

Rates of duty

General (MFN)
1.1%
Column 2Cuba, North Korea, Russia, Belarus
5.1%
Unit of quantity
kg

Trade agreement rates

FreeGSP (lapsed since Dec 31, 2020), U.S.-Australia FTA, U.S.-Bahrain FTA, U.S.-Chile FTA, U.S.-Colombia TPA, AGOA (authorized through Dec 31, 2026), E, U.S.-Israel FTA, U.S.-Jordan FTA, U.S.-Korea FTA, U.S.-Morocco FTA, U.S.-Oman FTA, CAFTA-DR, U.S.-Panama TPA, U.S.-Peru TPA, USMCA, U.S.-Singapore FTA

Related lines in heading 2837

About heading 2837

Cyanides, cyanide oxides and complex cyanides

Heading 2837 covers cyanides, cyanide oxides and complex cyanides, which are inorganic salts built around the cyanide ion. The heading splits first by type: simple cyanides and cyanide oxides in 2837.11 and 2837.19, and complex cyanides in 2837.20. Within simple cyanides, sodium has its own line, while potassium, calcium and other cations fall under the residual subheadings.

Full guide to heading 2837

Products in this heading

  • Sodium cyanide for gold heap leaching and electroplating baths
  • Potassium cyanide used in plating and metal treatment
  • Calcium cyanide used in fumigation and mining
  • Potassium ferricyanide (red prussiate of potash) for photographic and pigment use
  • Sodium ferrocyanide and other ferrocyanide salts
  • Cyanide oxides such as sodium cyanate sold as chemical intermediates
  • Complex cyanide salts for electroplating baths

Frequently asked questions

What is the HTS code for sodium cyanide?

Sodium cyanide is classified under 2837.11.00.00. The general (MFN) rate for that line is Free.

What is the duty on potassium ferricyanide?

Potassium ferricyanide falls under 2837.20.10.00. The general (MFN) rate is 1.1%.

How do I classify potassium cyanide?

Potassium cyanide goes in the residual simple cyanide subheading at 2837.19.01.10. The general (MFN) rate for that line is Free.

Source: USITC Harmonized Tariff Schedule, retrieved October 22, 2026.

HTS 2837.20.10.00: Cyanides, cyanide oxides and complex cyanides / Complex cya..., 1.1% duty | HTSBase