Mercuric Iodide Red Crystals from Mexico
Red mercuric iodide crystals are used in thermometers, infrared detectors, and as a chemical reagent. It qualifies as a chemically defined mercury compound under subheading note for 2852.10, but as iodide primarily in 2827.60.51.00. The scarlet tetragonal crystals sublime at 350°C.
Duty Rate — Mexico → United States
4.2%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• EPA TSCA and waste manifest required due to mercury toxicity
• Declare as UN2025 mercury compounds for IMDG shipping
• Confirm not organo-mercury to avoid Chapter 29