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 of isotopes 28 42 Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides Commodity Code Description 28 42 10 Double or complex silicates, including aluminosilicates whether or not chemically defi 28 42 90 Other