2804.40.00.00 - Oxygen

This HTS classification, 2804.40.00.00, specifically covers oxygen in its elemental form. Oxygen, a highly reactive nonmetal, is essential for combustion and respiration and is typically found as a diatomic molecule (O2). Its primary use in industrial and medical applications, such as welding, cutting, life support systems, and steel manufacturing, often dictates its classification under this specific heading.

Distinguishing oxygen from its sibling categories, we find other nonmetals and rare gases. For instance, 2804.10.00.00 covers hydrogen, a lighter, flammable gas. Rare gases, such as argon and helium, are chemically inert and classified separately within this chapter. Nitrogen (2804.30.00.00) is another significant nonmetal, used extensively in atmosphere control and chemical synthesis, differing from oxygen in its reactivity and applications. Boron and tellurium (2804.50.00), as well as silicon, are also distinct nonmetals with vastly different properties and industrial uses.

As this is a leaf node, there are no further subcategories under 2804.40.00.00. Therefore, the classification of oxygen will generally not involve further subdivision based on its form (e.g., gaseous, liquid, or solid) within this specific HTS code, assuming it meets the general requirements for elemental oxygen. The focus remains on identifying the product as pure oxygen, distinct from compounds or mixtures where oxygen is a component.