Zinc Borate Powder (2ZnO·3B2O3·3.5H2O)
Zinc borate (2ZnO·3B2O3·3.5H2O) is a flame retardant and smoke suppressant used in plastics and textiles. Classified as other borates under HTS 2840.20.00.00 as a metal borate salt per heading applicability. Fine white powder with specific hydrate formula.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when masterbatched in polymers
Polymer additives classify as preparations, not pure compounds.
If primarily zinc salt
Sulfate/peroxysulfate zinc salts take precedence over borate aspect.
If activated for fungicide use
Nonspecific fungicides containing borates fall in Chapter 38.
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Import Tips & Compliance
• Confirm molar ratio via FTIR analysis to validate exact compound
• RoHS compliance docs needed if for electronics import
• Particle size specs affect dust hazard classification
Related Products under HTS 2840.20.00.00
Sodium Tetraborate Decahydrate (Borax)
Sodium tetraborate decahydrate, commonly known as borax, is a hydrated sodium borate salt used in detergents, glass manufacturing, and as a flux. It falls under HTS 2840.20.00.00 as 'other borates' since it is a chemically defined inorganic borate compound excluding peroxoborates. This white crystalline powder is essential in cleaning products and metallurgy.
Disodium Tetraborate Anhydrous
Disodium tetraborate anhydrous is a dehydrated form of borax used in industrial applications like enamel frits and herbicides. Classified under HTS 2840.20.00.00 as other borates, it is a pure inorganic sodium borate meeting Chapter 28 definitions. This powder provides boron source in metallurgy and agriculture.
Potassium Tetraborate
Potassium tetraborate is an inorganic salt used as a boron source in welding fluxes and ceramics. It is classified in HTS 2840.20.00.00 as other borates, distinct from sodium borates. This compound appears as a white powder soluble in water.
Ammonium Pentaborate Solution
Ammonium pentaborate solution (20-40% concentration) serves as a fire retardant and boron supplement in agriculture. Under HTS 2840.20.00.00 as other borates, it qualifies as chemically defined per Chapter 28/29 notes despite solution form. Used in wood treatment and fertilizers.
Magnesium Borate Hydrate
Magnesium borate hydrate serves as a lubricant additive and anti-corrosion agent. It falls under HTS 2840.20.00.00 as other borates, being a chemically defined inorganic magnesium salt. Used in drilling fluids and ceramics.
Calcium Borate Precipitate
Calcium borate precipitate is used in specialty ceramics and as a boron supplement. Classified under HTS 2840.20.00.00 as other borates, excluding Chapter 31 products. Fine particulate form for high-purity applications.