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Harmonized System
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
Section VI > Chapter 28 > Heading 2835 > 2835.3 > 2835.31
Sodium triphosphate (sodium tripolyphosphate)
Section VI > Chapter 28 > Heading 2836
Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate.