Chemicals used in industry; chemicals used in industry and science; Chemical preparations for use in industry; Inorganic salts for industrial purposes; Complex salts; double salts; magnesium salts; metallates; salts for galvanic cells; salts from rare earth metals; salts of alkaline metals; Chemicals for the manufacture of catalysts; Biochemical catalysts; Chemical catalysts, namely, catalysts for chemical processes; Catalysts for chemical and biochemical processes; catalysts for oxidation pr...