Other borates
Borates; peroxoborates (perborates). > Disodium tetraborate (refined borax): > Other borates > Other borates
Duty Rate (from China)
Products classified under Tariff item 2840.20.00.00
Ammonium Pentaborate Solution
Ammonium pentaborate solution (20-40% concentration) is a chemically defined inorganic compound used as a fire retardant and boron supplement in agriculture. It qualifies as an 'other borate' under this tariff item because it is not a sodium borate and meets the Chapter 28 criteria for separate chemically defined compounds in solution.
2840.20.00Barium Borate
Barium borate is a chemically defined inorganic compound used in optical glass and X-ray screens for its refractive index control. It is an 'other borate' because it is not a sodium borate and falls under this tariff item as a metal borate salt.
2840.20.00Cadmium Borate
Cadmium borate is a chemically defined metal borate used in phosphors and specialty pigments. It is classified as an 'other borate' under this tariff item, but its cadmium content triggers additional regulatory scrutiny.
2840.20.00Calcium Borate Precipitate
Calcium borate precipitate is a fine particulate form of calcium borate used in specialty ceramics and as a boron supplement. It is an 'other borate' because it is a metal borate other than sodium borate, and it is not excluded by Chapter 31 notes.
2840.20.00Disodium Tetraborate Anhydrous
Disodium tetraborate anhydrous is a dehydrated form of borax, chemically defined as a sodium borate. It is classified under this tariff item as an 'other borate' because it is not the refined borax form covered by the sibling subheading, and it meets Chapter 28 requirements.
2840.20.00Lead Borate
Lead borate is a chemically defined metal borate used in glass-to-metal seals and radiation shielding glass. It is an 'other borate' under this tariff item because it is not a sodium borate and meets Chapter 28 criteria for inorganic compounds.
2840.20.00Magnesium Borate Hydrate
Magnesium borate hydrate is a chemically defined inorganic magnesium salt used as a lubricant additive and anti-corrosion agent. It is an 'other borate' because it is a metal borate other than sodium borate, and it is not excluded by Chapter 28 notes.
2840.20.00Potassium Tetraborate
Potassium tetraborate is an inorganic salt used as a boron source in welding fluxes and ceramics. It is an 'other borate' because it is a metal borate other than sodium borate, and it is chemically defined per Chapter 28.
2840.20.00Sodium 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 is classified as an 'other borate' under this tariff item because it is not the refined borax form covered by the sibling subheading, and it meets Chapter 28 criteria.
2840.20.00Zinc Borate Powder (2ZnO·3B2O3·3.5H2O)
Zinc borate powder (2ZnO·3B2O3·3.5H2O) is a flame retardant and smoke suppressant used in plastics and textiles. It is an 'other borate' because it is a metal borate other than sodium borate, and it is chemically defined per Chapter 28.