Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes

Schedule B code 28 groups all inorganic chemicals exported from the United States, encompassing acids, bases, salts, oxides, hydroxides, sulfides and other non-organic compounds used in industrial, agricultural and laboratory applications. The category aids customs and trade statistics by aggregating these substances under a single, searchable export classification.