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, fluoroaluminates and other complex fluorine salts 28 26 30 - Sodium hexafluoroaluminate (synthetic cryolite) Commodity Code Description 28 26 30 00 - Sodium hexafluoroaluminate (synthetic cryolite)