Mercuric Sulfate
Mercuric sulfate is a white crystalline inorganic compound of mercury used in analytical chemistry and gold extraction processes. Classified in HTS 2852.90.90.00 as an other inorganic mercury compound, meeting the 'chemically defined' criteria from Chapter 28 and 29 notes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If in sulfate mixtures with ammonium
Ammonium mercuric sulfate as a double salt may classify under heading 2842 for complex salts.
If for laboratory diagnostic reagents
Mercury compounds prepared exclusively for lab analysis may shift to diagnostic reagents.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Declare under EPA Toxic Release Inventory if threshold exceeded; include waste management plans
• Use UN 1621 packaging standards for transport as a toxic solid
• Confirm not a complex salt qualifying for heading 2842 double salts provision
Related Products under HTS 2852.90.90.00
Mercuric Chloride (Corrosive Sublimate)
Mercuric chloride, also known as corrosive sublimate, is an inorganic mercury compound used historically as a disinfectant and in laboratory applications. It falls under HTS 2852.90.90.00 as a chemically defined inorganic compound of mercury, distinct from amalgams, per Chapter 28 notes.
Mercuric Oxide Red
Red mercuric oxide is a granular inorganic mercury compound used in battery production and as a chemical intermediate. It is covered by HTS 2852.90.90.00 for other chemically defined mercury compounds excluding amalgams.
Mercuric Nitrate
Mercuric nitrate is a colorless crystalline compound used in organic synthesis and textile mordanting. HTS 2852.90.90.00 applies to this chemically defined mercury salt not covered by specific organomercury exclusions.
Mercuric Iodide Red
Red mercuric iodide serves as a semiconductor material and in photography. As a defined inorganic mercury halide compound, it imports under HTS 2852.90.90.00.
Phenylmercuric Acetate
Phenylmercuric acetate is an organomercury fungicide used in paint and wood preservation. It qualifies for HTS 2852.90.90.00 as an organic compound of mercury per the subheading note.
Methylmercuric Chloride
Methylmercuric chloride is a highly toxic organomercury compound used in research on environmental toxicology. Covered under HTS 2852.90.90.00 for chemically defined mercury organics.