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 (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined. 28 35 22 Of mono or disodium 28 35 22 00 Of mono or disodium Commodity Code Description 28 35 22 00 000 Of mono or disodium