Hydrazine and hydroxylamine and their inorganic salts — HTS 2825
Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides
Chapter 28 › Heading 2825
2026 HTS Rev 19 Synced Rules verified Operational
Written to help non-specialists understand this page. Rates, dates, and legal facts come from the official records above and on the linked source.
HTS heading 2825 is a broad product category for certain inorganic chemicals. It groups hydrazine and hydroxylamine, their inorganic salts, other inorganic bases, and specified metal oxides, hydroxides, and peroxides. These products may look similar commercially, but their tariff classification can differ based on their chemical identity and form.
To reach the correct 8-digit HTSUS code, first identify the product’s exact chemical substance, then check whether it is a salt, oxide, hydroxide, peroxide, or another listed type. The more specific subheading generally depends on the material, chemical composition, and sometimes physical form or concentration. Use the current HTSUS wording, relevant section and chapter notes, and the product’s technical documentation; when classification is uncertain, obtain customs-broker or specialist advice.
What to check
- Confirm the exact chemical name, formula, and CAS Registry Number from the safety data sheet and supplier specifications.
- Determine whether the product is a pure substance, an inorganic salt, an oxide, hydroxide, peroxide, or a mixture or preparation.
- Check the product’s physical form, concentration, purity, and whether it is stabilized or combined with other substances.
- Read the full heading and subheading descriptions, along with the applicable HTSUS notes, before selecting the 8-digit code.
- Compare the proposed code with prior binding rulings or request professional customs-classification advice when the chemistry or product composition is unclear.
HTS heading 2825 summary
Hydrazine and hydroxylamine and their inorganic salts is a 4-digit product category containing 7 published product-code lines in this snapshot. A heading does not carry one universal duty rate; classification must be narrowed to the line matching the product facts.
How to find your code in this category
A heading is a product category. To get the exact duty, narrow from this 4-digit heading to a sub-category (usually by material), then open the 8-digit code that matches your product.
Open any code in the tables below to see its exact duty rate, a duty calculator (enter your shipment value → estimated duty and landed cost), the rate-change history chart, and the country-by-country breakdown (including Section 301/232 add-on duties).
Why you have to click in: a single category can contain products with very different duties. The rate depends on the specific product — its material and construction — and on the country of origin, and those only get pinned down at the 8-digit code level. That is why this page points you to codes instead of showing one rate for the whole category.
Sub-categories
| Code | Description |
|---|---|
| 2825.50 | Copper oxides and hydroxides |
| 2825.90 | Other |
Product codes & duty rates
👇 Each row is a specific product code — click a blue code to open its full page with exact duty rates by country, the rate-history chart, and a duty calculator. 👉
| Code | Description | General (MFN) | Special | Column 2 |
|---|---|---|---|---|
| 2825.10.00.00 👉 | Hydrazine and hydroxylamine and their inorganic salts | 3.7% | Free | 25% |
| 2825.20.00.00 👉 | Lithium oxide and hydroxide | 3.7% | Free | 25% |
| 2825.30.00 👉 | Vanadium oxides and hydroxides | 5.5% | Free | 40% |
| 2825.40.00.00 👉 | Nickel oxides and hydroxides | Free | — | Free |
| 2825.60.00 👉 | Germanium oxides and zirconium dioxide | 3.7% | Free | 25% |
| 2825.70.00.00 👉 | Molybdenum oxides and hydroxides | 3.2% | Free | 20.5% |
| 2825.80.00.00 👉 | Antimony oxides | Free | — | 4.4¢/kg |
"Special" shows the free-trade-agreement rate; open a code to see exactly which countries qualify.
Common questions
What products fall under HTS heading 2825?
Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. To classify a specific item you must pick the matching sub-category and 8-digit code above; the right choice usually depends on the material and construction of the product.
How do I choose the right code within this category?
Start from the sub-categories (typically divided by material—for example cotton versus man-made fibers), then open the active 8- or 10-digit code that matches the product. When unsure, a licensed customs broker or a CBP binding ruling can confirm the classification.
Reference information only, not customs, legal, or classification advice. Confirm the current code and rate against the official HTS before you import.