Sulfides; polysulfides, whether or not chemically defined
5 declarable lines
Heading 2830 covers sulfides and polysulfides, whether or not chemically defined, including metal sulfides. The heading first separates sodium sulfides from all other sulfides. The other sulfides are split into zinc sulfide luminescent grade, other zinc sulfide, cadmium sulfide, and residual other.
Products in this heading
- Sodium sulfide
- Zinc sulfide, luminescent grade with purity of 99.99% or more by weight
- Other zinc sulfide
- Cadmium sulfide
- Calcium sulfide
- Barium sulfide
- Ammonium polysulfide
How to choose the right subheading
- Identify the anion as sulfide or polysulfide, not sulfite, sulfate, dithionite or thiosulfate.
- Check the metal cation: sodium sulfides go to 2830.10.00.00.
- For zinc sulfide, check luminescent grade and purity of 99.99% or more by weight; that goes to 2830.90.10.00.
- If zinc sulfide but not that grade, use 2830.90.15.00.
- Cadmium sulfide goes to 2830.90.20.00; all remaining sulfides and polysulfides go to 2830.90.90.00.
Often confused with
- Heading 2832Sodium sulfite
Sulfite, not sulfide; it belongs to heading 2832.
- Heading 2833Copper sulfate
Sulfate, not sulfide; classified in heading 2833.
- Heading 2831Sodium dithionite
Dithionite, not sulfide; heading 2831 covers dithionites.
- Heading 2813Phosphorus trisulfide
Sulfide of a nonmetal, not a metal sulfide of heading 2830.
Frequently asked questions
What is the HTS code for sodium sulfide?
Sodium sulfides are classified under 2830.10.00.00 at a general (MFN) rate of 3.7%.
What is the duty on cadmium sulfide?
Cadmium sulfide is classified under 2830.90.20.00 and carries a general (MFN) rate of 3.1%.
How do I classify zinc sulfide?
For luminescent grade with a purity of 99.99% or more by weight, use 2830.90.10.00, general (MFN) Free. Other zinc sulfide uses 2830.90.15.00, general (MFN) 2.8%.
Guide written from the official schedule text. Rates quoted are general (MFN) rates; check the line page for trade agreement rates and the classification of your exact product.
All lines in heading 2830
- 2830.10.00.00Sulfides; polysulfides, whether or not chemically defined / Sodium sulfides3.7%
- 2830.90.10.00Zinc sulfide, luminescent grade having a purity of 99.99 percent or more by weightFree
- 2830.90.15.00Sulfides; polysulfides, whether or not chemically defined / Other zinc sulfide2.8%
- 2830.90.20.00Sulfides; polysulfides, whether or not chemically defined / Cadmium sulfide3.1%
- 2830.90.90.00Sulfides; polysulfides, whether or not chemically defined / Other3%