Other
Phosphides, whether or not chemically defined, excluding ferrophosphorous; other inorganic compounds (including distilled or conductivity water and water of similar purity); liquid air (whether or not rare gases have been removed); compressed air; amalgams, other than amalgams of precious metals: > Other: > Other > Other
Duty Rate (from China)
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified 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.
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.
Gallium-Indium Eutectic Amalgam
Gallium-indium eutectic amalgam is a liquid metal alloy at room temperature, used in flexible electronics and thermal interfaces. It is an amalgam (non-precious) classified under HTS 2853.90.90.90 as other inorganic compounds. Mercury-free, room-temperature liquid form.
Sodium Amalgam Granules
Sodium amalgam granules are used in organic synthesis as a reducing agent, consisting of sodium dissolved in mercury. Classified under HTS 2853.90.90.90 excluding precious metal amalgams, as other inorganic compounds. Supplied under mineral oil to prevent oxidation.
Compressed Air Cylinders
Compressed air in high-pressure cylinders for pneumatic tools and industrial cleaning. Falls under HTS 2853.90.90.90 as 'compressed air' among other inorganic compounds. Filtered dry air at 200-300 bar pressure.
Type II Deionized Water
Type II deionized water with 1-5 MΩ·cm resistivity for general lab washing and rinsing. Similar purity qualifies it under HTS 2853.90.90.90 as conductivity water equivalent. Produced by ion exchange resins.
Calcium Phosphide Granules
Calcium phosphide granules generate phosphine for marine flares and signals. Inorganic phosphide under HTS 2853.90.90.90. Moisture-reactive compound.
Sterile Water for Injection
Sterile water for injection (WFI) meets USP <1231> for diluting parenterals. HTS 2853.90.90.90 for distilled purity. Pyrogen-free.
Indium-Tin Amalgam
Indium-tin amalgam for thermal expansion liquids in thermometers. Non-precious amalgam HTS 2853.90.90.90.
Phosphor Copper Master Alloy
High-phosphorus phosphor copper master alloy for brass production. >15% P qualifies as phosphide HTS 2853.90.90.90.