Section 06 Products of the chemical or allied industries 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare - earth metals, of radioactive elements or isotopes 28 35 Phosphinates, phosphonates, phosphates and polyphosphates Commodity Code Description 28 35 10 Phosphinates (hypophosphites) and phosphonates (phosphites) 28 35 22 Of mono- or disodium 28 35 24 Of potassium 28 35 25 Calcium hydrogeorthophosphate ("dicalcium phosphate") 28 35 26 Other phosphates of calcium 28 35 29 Other 28 35 31 Sodium triphosphate (sodium tripolyphosphate) 28 35 39 Other
