[Class : 1] Catalysts, Reaction Initiators, Accelerators, Catalysts For Hydrogenation Of Oils, Fats And Oleo Chemicals, Catalyst Used In Various Reduction Reactions, Catalysts For Reactions Such As Alkylation, Etherification, Chemicals Used In Industry, Science And Photography, As Well As In Agriculture, Horticulture And Forestry; Chemical Substances For Preserving Foodstuff...