HS 28.35

Phosphinates (hypophosphites), phosphonates (phosphites), and phosphates; and polyphosphates, whether or not chemically defined

8 subheadings · Chapter 28: Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes

WCO HS 20228 subheadings
ℹ Many substances in this chapter (inorganic chemicals) may be classified as dangerous goods under ADR. Common hazard classes include Class 5.1 (oxidising), Class 6.1 (toxic), and Class 8 (corrosive). Always check individual substance classification before transport. Check ADR classification →
Classification is the shipper’s legal responsibility. This reference is based on common HS-ADR correlations from public regulatory data. Always verify against the current ADR, IMDG Code, or IATA DGR and consult a qualified DGSA where required.
HS 28.35WCO HS 2022
Phosphinates (hypophosphites), phosphonates (phosphites), and phosphates; and polyphosphates, whether or not chemically defined
Subheadings
8
6-digit subheadings under this heading
Chapter
28
Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes
Section
VI
Products of the chemical or allied industries
Level
Heading
4-digit heading (WCO HS 2022)
World Customs Organization (HS 2022)checked 2026-07-24verified

Subheadings

28.35.10
Phosphinates (hypophosphites) and phosphonates (phosphites), whether or not chemically defined
→
28.35.22
Phosphates; of mono- or disodium, whether or not chemically defined
→
28.35.24
Phosphates; of potassium, whether or not chemically defined
→
28.35.25
Phosphates; calcium hydrogenorthophosphate (dicalcium phosphate), whether or not chemically defined
→
28.35.26
Phosphates; of calcium n.e.c. in item no. 2835.25, whether or not chemically defined
→
28.35.29
Phosphates; (other than of mono- or disodium, other than of potassium or of calcium hydrogenorthophosphate (dicalcium phosphate) and excluding other phosphates of calcium), whether or not chemically defined
→
28.35.31
Polyphosphates; sodium triphosphate (sodium tripolyphosphate), whether or not chemically defined
→
28.35.39
Polyphosphates; other than sodium triphosphate (sodium tripolyphosphate), whether or not chemically defined
→
← Chapter 28: Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes

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