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.
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 borax is in its anhydrous form and not otherwise specified
Anhydrous disodium tetraborate may be classified under a different subheading if it is not considered 'refined' in the same manner.
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
• Ensure the product is clearly labeled as disodium tetraborate with purity specifications
• Keep a certificate of analysis to confirm it is chemically defined and not a mixture
• Verify that the borax is not doped for electronics use, which would fall under another heading
Related Products under Tariff item 2840.19.00
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 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.
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.