Red Mercuric Oxide Crystals
Red mercuric oxide (HgO) in crystalline form serves as an analytical reagent and pigment precursor in specialized applications. Classified under HTS 2852.10.10.00 as mercuric oxide, a chemically defined mercury compound per Chapter 28 notes. The red variant differs from yellow in crystal structure but shares identical chemical composition.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used solely as inorganic pigment in paints
Pigment-grade mercuric oxide may classify under synthetic inorganic coloring matter if primary end-use is pigmentation.
If in colloidal suspension or stabilized form
Colloidal precious metal compounds including stabilized mercury forms fall under heading 2843.
If part of gas/smoke analysis chemical kits
When supplied in kits for laboratory analysis, classified as chemical instruments rather than pure compounds.
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Import Tips & Compliance
• Label shipments with UN 1609 hazardous code and ensure proper segregation from organic materials during transport
• Include assay reports proving >99% purity to maintain classification as chemically defined compound
• Check state-specific mercury import bans; federal TSCA pre-notification is mandatory for quantities over 1 kg
Related Products under HTS 2852.10.10.00
Yellow Mercuric Oxide Powder
Yellow mercuric oxide (HgO) is a chemically defined inorganic compound of mercury used primarily in the production of mercury batteries and as a chemical reagent. It falls under HTS 2852.10.10.00 as it is explicitly listed as mercuric oxide, meeting the 'chemically defined' criteria per subheading note for Chapter 28. This bright yellow powder is handled with extreme care due to its toxicity.
Mercuric Cyanide Laboratory Grade
Mercuric cyanide (Hg(CN)2) is a highly toxic white crystalline compound used in gold mining extraction and organic synthesis. It qualifies for HTS 2852.10.10.00 as a chemically defined mercury compound explicitly named in the subheading. Strict handling protocols are required due to its extreme poison hazard.
Mercuric Oxycyanide Reagent
Mercuric oxycyanide (Hg(CN)2·HgO) serves as a specialized reagent in qualitative analysis and pharmaceutical intermediates. This compound is explicitly listed under HTS 2852.10.10.00 as a chemically defined mercury compound meeting Chapter 28 purity standards. Its dual oxide-cyanide structure requires precise compositional verification.
Mercuric Potassium Cyanide Crystals
Mercuric potassium cyanide (K2[Hg(CN)4]) is used in electroplating baths and as an intermediate in heavy metal separations. Explicitly named in HTS 2852.10.10.00 as a chemically defined complex cyanide of mercury and potassium. The double salt structure distinguishes it from simple mercuric cyanide.
Pharmaceutical Grade Mercuric Oxide
High-purity mercuric oxide meeting USP standards for use in ophthalmic preparations and antiseptics. Still classified under HTS 2852.10.10.00 as the pure chemical compound despite pharmaceutical end-use. Purity exceeds 99.5% with controlled particle size for medical applications.
Mercuric Cyanide Gold Extraction Grade
Technical grade mercuric cyanide optimized for amalgamation processes in small-scale gold recovery. Meets HTS 2852.10.10.00 chemically defined criteria despite industrial impurities <1%. Supplied in sealed drums for mining operations.