HTS US: 2833.XX.XXXX
Description
HTS Code 2833 encompasses a variety of sulfate compounds including sulfates, alums, and peroxosulfates (also known as persulfates). This heading includes both common industrial and chemical compounds used in diverse applications such as chemical manufacturing, water treatment, and textile processing.
The products under this code are broadly categorized as follows:
- Disodium sulfate: Including salt cake and other forms, both anhydrous and hydrated.
- Sulfates of various metals: Such as magnesium, aluminum, nickel, copper, barium, cobalt, iron, vanadium, chromium, zinc, and manganese.
- Alums: A class of double sulfate salts typically involving aluminum and another metal.
- Peroxosulfates (Persulfates): Highly reactive sulfate compounds used primarily as oxidizing agents, including those of sodium, potassium, ammonium, and other types.
Code Hierarchy
- Section VI: Products of the Chemical or Allied Industries (Chapters 28-38)
- Chapter 28: Inorganic Chemicals
- Heading 2833: Sulfates; alums; peroxosulfates (persulfates)
- US HTS Code (10-digit):
2833.XX.XXXX– The final digits specify the exact chemical compound and form.
Detailed Breakdown of Subheadings
The heading 2833 is subdivided into 4-digit, 6-digit, and 10-digit codes that identify specific sulfate compounds and their forms.
| HS/HTS Code | Description | Examples & Notes |
|---|---|---|
| 2833.11 | Disodium sulfate | A widely used industrial salt, often in detergent manufacture and paper pulping. |
| 2833.11.10.00 | Salt cake | Crude form of sodium sulfate, commonly produced as a byproduct in chemical processes. |
| 2833.11.50 | Other disodium sulfate | Includes various other forms not classified as salt cake. |
| 2833.11.50.10 | Anhydrous | Completely dry disodium sulfate used in specialized chemical applications. |
| 2833.11.50.50 | Other | Hydrated or other less common forms. |
| 2833.19.00.00 | Other sulfates not specified elsewhere | Miscellaneous sulfates outside principal categories. |
| 2833.21.00.00 | Sulfates of magnesium | Used in agriculture, pharmaceuticals, and water treatment. |
| 2833.22.00.00 | Sulfates of aluminum | Commonly applied in water purification and paper manufacturing. |
| 2833.24.00.00 | Sulfates of nickel | Used in electroplating and battery production. |
| 2833.25.00.00 | Sulfates of copper | Important in fungicides, pigments, and electroplating. |
| 2833.27.00.00 | Sulfates of barium | Primarily used in drilling fluids and as pigments. |
| 2833.29 | Other sulfates: | Includes sulfates of other metals not listed above. |
| 2833.29.10.00 | Sulfates of cobalt | Used in pigments and battery manufacturing. |
| 2833.29.20.00 | Sulfates of iron | Applied in water treatment and as iron supplements. |
| 2833.29.30.00 | Sulfates of vanadium | Used in catalysts and pigments. |
| 2833.29.40.00 | Sulfates of chromium | Important in tanning and pigments. |
| 2833.29.45.00 | Sulfates of zinc | Used in agriculture and as an additive in rubber and paint. |
| 2833.29.51 | Other sulfates | Further subdivided to specify metal type. |
| 2833.29.51.10 | Sulfates of manganese | Used in fertilizers and chemicals. |
| 2833.29.51.90 | Other sulfates not specified | Miscellaneous sulfates. |
| 2833.30.00.00 | Alums | Double sulfates commonly used in water purification and dyeing. |
| 2833.40 | Peroxosulfates (persulfates): | Strong oxidizing agents used in polymerization and cleaning. |
| 2833.40.20.00 | Peroxosulfates of sodium | Widely used in chemical synthesis and cleaning products. |
| 2833.40.60 | Other peroxosulfates | Includes potassium, ammonium, and other peroxosulfates. |
| 2833.40.60.10 | Peroxosulfates of potassium | Common in polymerization initiators. |
| 2833.40.60.20 | Peroxosulfates of ammonium | Used in etching and cleaning applications. |
| 2833.40.60.50 | Other peroxosulfates | Less common persulfate compounds. |
What is NOT Classified Here?
To ensure correct classification, the following are excluded from this heading:
- Organic sulfate compounds: Sulfates derived from organic molecules are classified under other headings.
- Other inorganic salts: Non-sulfate inorganic salts fall outside this heading.
- Prepared chemical mixtures: Complex mixtures containing sulfates but classified under different chemical categories, depending on composition.
Notes
- Industrial Usage: Many of these sulfate compounds are essential raw materials in industries such as detergents, paper production, agriculture, water treatment, and chemical manufacturing.
- Purity and Form: The classification can depend on the chemical form (anhydrous vs hydrated), physical form (salt cake, powder, crystals), and purity level.
- Regulatory Compliance: Some sulfate compounds, especially persulfates, may be subject to transportation and safety regulations due to their oxidizing properties.
Declaration Example
Product: Shipment of anhydrous disodium sulfate for industrial paper production.US HTS Code:
2833.11.50.10(Anhydrous disodium sulfate)Unit of Quantity: Kilogram (kg)
General Duty Rate: Check current USHTS for specific rates.
Additional Requirements: Compliance with chemical safety and transport regulations.
Related HTS Codes
- HTS 2805: Other inorganic acids and inorganic oxygen compounds of nonmetals.
- HTS 2834: Nitrites; nitrates.
- HTS 2841: Salts of inorganic acids or peroxoacids.
- HTS 2827: Chlorides, bromides, iodides, and sulfides.
