Refined Anhydrous Borax (Na2B4O7)
Refined anhydrous borax (Na2B4O7), a white powder used in glass manufacturing and cleaning agents. It is a separate chemically defined compound of Chapter 28, not excluded by the chapter notes, and is not a product of Section V or other excluded goods.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the anhydrous borax is not considered 'refined' under the tariff
The subheading distinguishes between refined and other forms of disodium tetraborate.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Clearly state the chemical formula (Na2B4O7) on the commercial invoice
• Confirm the product is not mixed with other substances
• Check if the borax is in a form unworked as drawn, as doped forms for electronics fall under heading 38.18
Related Products under Tariff item 2840.19.00
High-Purity Refined Borax for Metallurgy
High-purity refined disodium tetraborate (borax) in powder form, used as a flux in non-ferrous metal soldering and brazing. It is a separate chemically defined compound of Chapter 28, not excluded by the chapter notes, and is not a cermet or sintered carbide.
Pharmaceutical Grade Refined Borax
Pharmaceutical-grade refined borax (disodium tetraborate) meeting USP standards, used in buffers and eye washes. It is a chemically defined compound of Chapter 28, not excluded by the chapter notes, and is not put up in measured doses or for retail sale.
Refined Borax Decahydrate USP Grade
Refined borax decahydrate (Na2B4O7·10H2O) of USP grade with specific impurity controls, used in pharmaceutical and laboratory applications. It is a chemically defined compound of Chapter 28, not excluded by the chapter notes, and is not put up for retail sale.
Refined Borax for Laundry Detergents
Bulk refined borax powder (Na2B4O7) used as a builder in laundry detergent formulations. It is a chemically defined inorganic compound of Chapter 28, not excluded by the chapter notes, and is not put up for retail sale as a preparation.
Refined Borax Granules for Glass Production
Granular refined disodium tetraborate optimized for fiberglass and glass flux applications. It is a separate chemically defined compound of Chapter 28, not excluded by the chapter notes, and is not a luminophore or glass frit.
Refined Borax Pentahydrate
Refined borax pentahydrate (Na2B4O7·5H2O), a crystalline form of disodium tetraborate used in detergents and herbicides. It is a separate chemically defined compound of Chapter 28, not excluded by the chapter notes, and is not a product of Chapter 31.