Section 06 Products of the chemical or allied 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare earth metals, of radioactive elements or isotopes 28 26 Fluorides; fluorosilicates... and other complex fluorine salts 28 26 20 Fluorosilicates of sodium or of potassium Commodity Code Description 28 26 20 00 Fluorosilicates of sodium or of potassium