Heading 2835
Phosphinates (hypophosphites), phosphonates (phosphites), and phosphates; and polyphosphates, whether or not chemically defined
283510
Phosphinates (hypophosphites) and phosphonates (phosphites), whether or not chemically defined
283522
Phosphates; of mono- or disodium, whether or not chemically defined
283524
Phosphates; of potassium, whether or not chemically defined
283525
Phosphates; calcium hydrogenorthophosphate (dicalcium phosphate), whether or not chemically defined
283526
Phosphates; of calcium n.e.c. in item no. 2835.25, whether or not chemically defined
283529
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
283531
Polyphosphates; sodium triphosphate (sodium tripolyphosphate), whether or not chemically defined
283539
Polyphosphates; other than sodium triphosphate (sodium tripolyphosphate), whether or not chemically defined