HS code 2835.25: Phosphates, calcium hydrogenorthophosphate (“dicalcium phosphate”)
Last updated
Key facts
- HS code
- 2835.25
- Covers
- Phosphates, calcium hydrogenorthophosphate (“dicalcium phosphate”)
- Edition
- HS2022
- Duty in the United States
- See its 1 line
Summary
HS code 2835.25 covers phosphates, calcium hydrogenorthophosphate (“dicalcium phosphate”). It sits in heading 28.35 (phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined) in chapter 28 (inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes). Other goods of heading 28.35 are classified under 2835.10 (phosphinates (hypophosphites) and phosphonates (phosphites)), 2835.22 (phosphates, of mono- or disodium), 2835.24 (phosphates, of potassium), 2835.26 (phosphates, other phosphates of calcium) or 3 others. National tariff lines under 2835.25 are live on border.bot for the United States (1 line, also used by 1 other country).
What this code covers
HS code 2835.25 covers phosphates, calcium hydrogenorthophosphate (“dicalcium phosphate”).
The legal text of the subheading is “Phosphates: Calcium hydrogenorthophosphate (“dicalcium phosphate”)”, read under “Phosphates”, in HS2022.
What it doesn’t cover
Other goods of heading 28.35 are classified under 2835.10 (phosphinates (hypophosphites) and phosphonates (phosphites)), 2835.22 (phosphates, of mono- or disodium), 2835.24 (phosphates, of potassium), 2835.26 (phosphates, other phosphates of calcium) or 3 others.
- 2835.10Phosphinates (hypophosphites) and phosphonates (phosphites)
- 2835.22Phosphates: Of mono- or disodium
- 2835.24Phosphates: Of potassium
- 2835.26Phosphates: Other phosphates of calcium
- 2835.29Phosphates: Other
- 2835.31Polyphosphates: Sodium triphosphate (sodium tripolyphosphate)
- 2835.39Polyphosphates: Other
How it is structured
2835.25 is a six-digit subheading. Its first two digits, 28, are the chapter; the first four, 2835, are heading 28.35; the last two, 25, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Within the heading
- Phosphates
- Subheading 2835.25
- Calcium hydrogenorthophosphate (“dicalcium phosphate”)
In other countries
National tariff lines under 2835.25 are live on border.bot for the United States (1 line, also used by 1 other country).
- United States1 line, used by 1 other country
Frequently asked questions
What does HS code 2835.25 cover?
HS code 2835.25 covers phosphates, calcium hydrogenorthophosphate (“dicalcium phosphate”).
Which heading and chapter is HS code 2835.25 in?
HS code 2835.25 is in heading 28.35 (phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined) in chapter 28 (inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes).
Where are goods of heading 28.35 classified when 2835.25 doesn’t fit?
Other goods of heading 28.35 are classified under 2835.10 (phosphinates (hypophosphites) and phosphonates (phosphites)), 2835.22 (phosphates, of mono- or disodium), 2835.24 (phosphates, of potassium), 2835.26 (phosphates, other phosphates of calcium) or 3 others.
Which countries’ tariffs list national lines under HS code 2835.25?
National tariff lines under 2835.25 are live on border.bot for the United States (1 line, also used by 1 other country).
Sources and updates
The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.
This page was last updated on 11 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.