Magnesium Chloride Hexahydrate
Magnesium chloride hexahydrate (MgCl2·6H2O) is a chemically defined inorganic salt of magnesium, commonly used as a de-icing agent and dust suppressant. It falls under HTS 2827.31.00.00 as a chloride of magnesium, fitting Chapter 28's provisions for metal salts. This crystalline form is the most prevalent commercial variant.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when blended into fertilizer mixtures
Fertilizer preparations containing magnesium chloride fall under Chapter 31 as mineral/chemical fertilizers, not pure salts.
If chemically modified or mixed with organic substances
Organo-inorganic preparations or non-specific chemical mixtures shift to heading 3824, excluding pure inorganic salts.
If misidentified as a different metal salt
Only magnesium chlorides stay in 2827.31; other metal chlorides like vanadium go to 2827.41.
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Import Tips & Compliance
• Verify purity and hydration state via lab analysis to confirm classification under chemically defined magnesium chlorides
• Include Safety Data Sheets (SDS) and chemical composition certificates for CBP review to avoid misclassification
• Watch for moisture content changes during shipping that could alter the hexahydrate form and documentation
Related Products under HTS 2827.31.00.00
Anhydrous Magnesium Chloride
Anhydrous magnesium chloride (MgCl2) is a pure, water-free form used in industrial processes like titanium production and catalyst manufacturing. Classified under HTS 2827.31.00.00 as a chemically defined chloride of magnesium per Chapter 28 notes. It serves as a key raw material in metal refining.
Magnesium Chloride Flakes
Magnesium chloride flakes are produced by crystallizing MgCl2 solutions for applications in dust control and concrete acceleration. This form is explicitly a chloride of magnesium under HTS 2827.31.00.00, meeting Chapter 28's inorganic salt criteria. Commonly sold in 50-lb bags for road maintenance.
Technical Grade Magnesium Chloride
Technical grade magnesium chloride (95-98% purity) is used in refrigeration brines and paper manufacturing. It qualifies under HTS 2827.31.00.00 as a chemically defined magnesium chloride, distinct from organo-inorganic compounds per Chapter notes. Lower purity than reagent grade but still classifiable here.
Magnesium Chloride Solution 35%
A 35% aqueous solution of magnesium chloride (MgCl2) used for dust suppression on unpaved roads. Despite being in solution, it classifies under HTS 2827.31.00.00 as the defining chemical is magnesium chloride, imported by weight of the compound. Liquid form for spray application.
Pharmaceutical Grade Magnesium Chloride USP
USP-grade magnesium chloride meets pharmacopeia standards for use in IV fluids and supplements. Classified in HTS 2827.31.00.00 as a pure magnesium chloride, even for medicinal applications, per Chapter 28 precedence over Chapter 30. High purity (>99%) with low heavy metals.
Magnesium Chloride for Grignard Reagent Production
High-purity magnesium chloride specifically produced for manufacturing Grignard reagents in organic synthesis. Falls under HTS 2827.31.00.00 as chemically defined magnesium chloride used as chemical intermediate. Anhydrous pellets optimized for metal insertion reactions.