Dental Amalgam Alloy
Dental amalgam alloy consists of powdered silver, tin, and mercury-free capsules that mix with mercury on-site. Classified under HTS 2853.90.90.90 as 'amalgams, other than amalgams of precious metals' within other inorganic compounds. Used for restorative dentistry fillings.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-mixed and put up as dental filling material
Finished pharmaceutical dental cements classify in Chapter 30.
If containing precious metals like high-silver alloys
Amalgams of precious metals explicitly excluded to Chapter 71.
If alloy powder not qualifying as amalgam pre-mix
Metal powders for dental use may go to chemical NES if not amalgam-defined.
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Import Tips & Compliance
• FDA 510(k) clearance required for dental devices; include biocompatibility testing
• Exclude precious metal content to stay out of Chapter 71
• Proper mercury handling protocols even for capsules
Related Products under HTS 2853.90.90.90
Copper Phosphide (Phosphor Copper)
Copper phosphide, also known as phosphor copper, is an inorganic compound containing more than 15% phosphorus by weight, used primarily as a deoxidizer and alloying additive in metallurgy. It falls under HTS 2853.90.90.90 as a phosphide explicitly included in heading 2853 per chapter notes. This chemically defined compound is imported in granular or powder form for industrial applications.
Zinc Phosphide Powder
Zinc phosphide is a chemically defined inorganic phosphide compound used as a rodenticide and in pyrotechnics. Classified under HTS 2853.90.90.90 as a phosphide, excluding ferrophosphorous, due to its discrete chemical formula meeting Chapter 28/29 purity standards. It is imported in stabilized powder form for pest control applications.
Aluminum Phosphide Tablets
Aluminum phosphide tablets are inorganic phosphide compounds used for fumigation in agriculture and storage. They qualify for HTS 2853.90.90.90 as chemically defined phosphides under heading 2853, imported in hermetically sealed containers to prevent hydrolysis. The product releases phosphine gas upon moisture contact.
Distilled Water USP Grade
USP-grade distilled water is highly purified water meeting United States Pharmacopeia standards for pharmaceutical use. It is classified under HTS 2853.90.90.90 as 'distilled or conductivity water and water of similar purity' within other inorganic compounds. Produced by distillation to remove impurities, ensuring <1 µS/cm conductivity.
Conductivity Water Type I
Type I conductivity water has resistivity >18 MΩ·cm, used in semiconductor manufacturing and analytical labs. Classified in HTS 2853.90.90.90 as 'water of similar purity' among other inorganic compounds. Produced via multi-stage purification including deionization and UV treatment.
Liquid Air (Synthetic)
Synthetic liquid air is liquefied atmospheric air used in cryogenics and as a refrigerant source. It falls under HTS 2853.90.90.90 as 'liquid air (whether or not rare gases have been removed)' in other inorganic compounds/products. Typically contains nitrogen, oxygen, argon in liquid form at -196°C.