Section VI — Products of the chemical or allied industries
Subheading
283330
Alums
Common commodities
Potassium alum crystalsAmmonium alum powderChromium potassium alumSodium aluminum sulphate crystalsAluminum ammonium chrome sulphateMordant alums for textile dyeingAluminum mordant solutionPotassium sulphate alumAmmonium aluminum sulphate pelletsChrome-free potassium alum