Salts of oxometallic or peroxometallic acids — HTS 2841
Salts of oxometallic or peroxometallic acids
Chapter 28 › Heading 2841
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 2841 is a broad product category for salts of oxometallic or peroxometallic acids. In plain language, these are chemical compounds in which a metal is combined with an oxygen-containing acid group; the heading generally covers the resulting salts rather than the acids themselves. The heading can include different chemical families, such as certain metal oxides combined with oxygen-based anions, subject to the full tariff schedule and any applicable exclusions.
To narrow the heading to an 8-digit HTSUS code, first identify the exact chemical substance and then follow the subheadings that separate products by material, chemical family, or other stated type. Confirm the product’s chemical identity—not merely its trade name—including its formula, composition, purity, hydrate or solution status, and whether it is a mixture. The complete 8-digit code must match the applicable description and any legal notes; a customs broker or qualified classification professional may be needed when the chemistry or tariff language is unclear.
What to check
- Obtain the supplier’s safety data sheet, technical data sheet, specification, and chemical formula before classifying the product.
- Verify the exact compound, including the metal, oxometallic or peroxometallic anion, oxidation state, hydrates, solutions, and concentration.
- Read every 6- and 8-digit subheading under heading 2841 and compare the product with the wording, not just the commercial name.
- Check the HTSUS section and chapter notes, exclusions, and any relevant Customs classification rulings before filing.
- Have a customs broker or chemical-classification specialist review difficult cases, mixtures, or products with multiple possible headings.
HTS heading 2841 summary
Salts of oxometallic or peroxometallic acids is a 4-digit product category containing 2 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 |
|---|---|
| 2841.50 | Other chromates and dichromates; peroxochromates |
| 2841.70 | Molybdates |
| 2841.90 | 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 |
|---|---|---|---|---|
| 2841.30.00.00 👉 | Sodium dichromate | 2.4% | Free | 8.5% |
| 2841.80.00 👉 | Tungstates (wolframates) | 5.5% | Free | 49.5% |
"Special" shows the free-trade-agreement rate; open a code to see exactly which countries qualify.
Common questions
What products fall under HTS heading 2841?
Salts of oxometallic or peroxometallic acids. 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.