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 30 Sodium hexafloroaluminate (synthetic cryolite) 28 26 30 00 Sodium hexafloroaluminate (synthetic cryolite) Commodity Code Description 28 26 30 00 00 Sodium hexafloroaluminate (synthetic cryolite)