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.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 1.7% | +35.0% | 36.7% |
| 🇲🇽Mexico | 1.7% | +10.0% | 11.7% |
| 🇨🇦Canada | 1.7% | +10.0% | 11.7% |
| 🇩🇪Germany | 1.7% | +10.0% | 11.7% |
| 🇯🇵Japan | 1.7% | +10.0% | 11.7% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If chemically defined mercury compounds
Chemically defined organic or inorganic mercury compounds, like mercuric chloride, fall under 2852.10 per subheading note, not elemental mercury.
If imported assembled in complete instruments
Mercury contained within finished electrical instruments like thermostats is classified by function under Chapter 90, not as separate mercury.
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Import Tips & Compliance
• Obtain EPA TSCA approval and comply with Toxic Substances Control Act regulations for mercury imports due to its hazardous nature
• Ensure proper UN-approved packaging and labeling as a dangerous good (UN 2809) with spill containment measures
• Verify state-level restrictions on mercury imports, as some US states ban non-essential uses
Related Products under HTS 2805.40.00.00
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.