Mercury
Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury: > Mercury
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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)
Products classified under HTS 2805.40.00.00
Elemental Mercury
Pure elemental mercury (Hg), a dense liquid metal at room temperature, classified under HTS 2805.40.00.00 as mercury in its chemically undefined elemental form. It is used in scientific instruments, dental amalgams, and industrial applications. This heading covers mercury not chemically combined with other elements.
Dental Mercury
Pharmaceutical-grade elemental mercury packaged for dental amalgam production, classified in HTS 2805.40.00.00 as pure mercury. Meets USP standards for medical applications with controlled impurity levels. Supplied in sealed capsules to prevent oxidation.
Laboratory Grade Mercury
ACS reagent grade mercury for analytical chemistry and laboratory thermometers, under HTS 2805.40.00.00 as elemental mercury. Supplied with lot-specific certificates of analysis guaranteeing trace metal purity. Essential for barometers and manometers.
Quicksilver Mercury Flasks
Traditional 75 lb iron flasks containing 99.9% pure quicksilver (mercury), HTS 2805.40.00.00 for elemental mercury. Standard packaging for mining and industrial distribution worldwide. Each flask stamped with purity and weight markings.
High Purity Mercury for Barometers
99.99% pure mercury specifically purified for meteorological barometer filling, under HTS 2805.40.00.00 as elemental mercury. Low vapor pressure formulation reduces health risks during instrument assembly. Supplied with expansion chamber specifications.
Mercury for Neon Sign Electrodes
Elemental mercury dosed for neon lighting electrodes, HTS 2805.40.00.00 as pure mercury. Precise quantities (typically 10-50 mg) for vapor lamp starting and conduction. Packaged in micro-dosing ampoules.
Pharmaceutical Mercury Grade
USP/NF certified mercury for remaining permitted medical applications, classified HTS 2805.40.00.00 as elemental mercury. Ultra-low heavy metal impurities (<1 ppm lead). Supplied with pharmacopeia compliance certificates.
Mercury Calibration Standard
NIST-traceable mercury standard solution or metal (10,000 ppm Hg) for analytical instrument calibration, HTS 2805.40.00.00 for the elemental component. Matrix-matched for AAS, ICP-MS analysis with ±0.5% accuracy certification.
Triple Distilled Mercury
High-purity mercury refined through triple distillation for ultra-low impurity levels, falling under HTS 2805.40.00.00 as elemental mercury. Used in precision scientific instruments and research applications requiring maximum purity. Purity exceeds 99.999%.
Industrial Mercury Metal
Technical grade mercury for electrolytic cells and gold extraction processes, classified HTS 2805.40.00.00 as elemental mercury. Lower purity than lab grades but suitable for large-scale industrial applications. Typically supplied in iron flasks.