2801.30 - Fluorine; bromine:

This HTS category, 2801.30, encompasses the elements fluorine and bromine, in their elemental states. These are reactive nonmetals that, along with chlorine and iodine, are grouped under heading 2801 of the Harmonized Tariff Schedule. Their classification here is based on their fundamental chemical nature as uncombined elements, distinct from any compounds they may form.

Within heading 2801, this sub-heading is distinguished from its siblings, 2801.10 (Chlorine) and 2801.20 (Iodine), by the specific elements it covers. While all are halogens, fluorine and bromine possess unique physical and chemical properties that necessitate their separate classification at this level. For instance, fluorine is the most electronegative element, exhibiting extreme reactivity, whereas bromine is a volatile liquid at room temperature, unlike the gaseous states of chlorine and iodine.

The subcategories within 2801.30 further refine the classification by separating fluorine (2801.30.10.00) from bromine (2801.30.20.00). This differentiation is crucial for import and export procedures, as these elements have distinct industrial applications and handling requirements. For example, elemental fluorine is primarily used in the production of uranium fuel and various fluorocarbons, while elemental bromine finds applications in flame retardants, pharmaceuticals, and water treatment.