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 42 Other salts of inorganic acids or peroxoacids, excluding azides 28 42 90 Other salts of inorganic acids or peroxoacids (excl. azides) Commodity Code Description 28 42 90 00 Other salts of inorganic acids or peroxoacids (excl. azides) 28 42 90 10 Sodium arsenite 28 42 90 20 Copper or chromium salts 28 42 90 30 Other fulminates, cyanates and thiocyanates 28 42 90 90 Other