Activated carbons for general industrial use; Bentonite; Carbon for industrial purposes; Chemicals for use in water treatment; Desiccants; Detergents for industrial use; Industrial chemicals; Kieselgur; Lime chloride; Magnesium chloride; Silica gel; Surface active compounds for general use in the industrial arts, namely, as wetting, spreading, emulsifying, dispersing and penetrating agents; Toxic gas neutralizers