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 41 Salts of oxometallic or peroxometallic acids Commodity Code Description 28 41 30 Sodium dichromate 28 41 50 Other chromates and dichromates; peroxochromates 28 41 61 Potassium permanganate 28 41 69 Other 28 41 70 Molybdates 28 41 80 Tungstates (wolframates) 28 41 90 Other
