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 26 Fluorides; fluorosilicates, fluoroaluminates 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 00 000 Sodium hexafloroaluminate (synthetic cryolite)