Mercuric Iodide Red Crystals
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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If strictly mercury compounds per subheading note
Chemically defined mercury compounds may classify under 2852.10 per specific note.
If complete electronic detectors
Finished instruments with mercuric iodide go to Chapter 90.
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Import Tips & Compliance
• 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
Related Products under HTS 2827.60.51.00
Potassium Iodide USP Grade
Potassium iodide is a chemically defined inorganic salt of potassium and iodide, used primarily as a nutritional supplement for iodine deficiency prevention and in radiation emergency kits. It falls under HTS 2827.60.51.00 as 'other' iodides, distinct from specific iodides like sodium iodide. This white crystalline powder meets purity standards for pharmaceutical applications.
Sodium Iodide Crystals
Sodium iodide in crystalline form is an inorganic iodide compound used in the production of silver iodide for cloud seeding and photographic films. Classified under HTS 2827.60.51.00 as 'other' iodides, it is a simple metal salt meeting Chapter 28 definitions. The hygroscopic crystals require sealed packaging to prevent moisture absorption.
Calcium Iodide Anhydrous
Calcium iodide anhydrous is a white powder used as an expectorant in veterinary medicine and animal feed additives for iodine supplementation. It qualifies under HTS 2827.60.51.00 for other iodide salts of inorganic bases as per Chapter 28 notes. The compound is highly soluble and deliquescent.
Zinc Iodide Powder
Zinc iodide is a chemically defined inorganic compound used as a disinfectant, in dental adhesives, and as a reagent in organic synthesis. It is classified in HTS 2827.60.51.00 as other iodides, excluding organo-inorganic types per Chapter exclusions. The yellowish powder is soluble in water and alcohol.
Ammonium Iodide Crystals
Ammonium iodide crystals serve as expectorants in pharmaceuticals, photographic chemicals, and feed additives. As an ammonium salt, it fits HTS 2827.60.51.00 under 'other' iodides per Chapter 28 notes on metal/ammonium salts. The colorless to white crystals are unstable above 551°C.
Magnesium Iodide Powder
Magnesium iodide powder is utilized in Grignard reagent synthesis and as a pharmaceutical intermediate for magnesium supplementation. It is an 'other' iodide under HTS 2827.60.51.00, a simple inorganic salt of magnesium. The compound appears white to yellowish and is highly reactive with water.