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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If phosphatic fertilizer grade
Calcium borates in fertilizers classify in Chapter 31 per exclusions.
If in catalyst preparations
Borates prepared as catalysts shift to chemical mixtures.
If with significant calcium carbonate
Carbonate-borate combinations follow carbonate headings.
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
• Differentiate from Chapter 31 via non-fertilizer end-use declaration
• Heavy metal content testing prevents REACH violations
• Calcination state affects classification purity
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.
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.
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.