Desiccants; Chemical additives for use as cleansing, deodorizing and refreshing ingredients in the manufacture of mouth sprays, dental cements and medicines for dental purposes; Chemical humidity indicators in the form of strips, pellets and films; Chemical products for the fresh-keeping and preserving of food; Chemical test paper; Chemicals for absorbing oxygen; Desiccants for absorbing moisture; Food preservative compositions; Food preservatives; Food preserving chemicals; pH value measurem...