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 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