Harmonized System
Section VI > Chapter 28 > Heading 2835
Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined.
Section VI > Chapter 28 > Heading 2835 > 2835.3
Polyphosphates
Section VI > Chapter 28 > Heading 2835 > 2835.10
Phosphinates (hypophosphites) and phosphonates (phosphites)
Section VI > Chapter 28 > Heading 2835 > 2835.2 > 2835.22
Of mono- or disodium
Section VI > Chapter 28 > Heading 2835 > 2835.2 > 2835.25
Calcium hydrogenorthophosphate («dicalcium phosphate»)
Section VI > Chapter 28 > Heading 2835 > 2835.2 > 2835.26
Other phosphates of calcium