2811.22.10.00 - Synthetic silica gel

This HTS category, 2811.22.10.00, specifically covers synthetic silica gel. Synthetic silica gel is a highly porous, amorphous form of silicon dioxide produced through a controlled chemical process. Its primary characteristic is its exceptional ability to adsorb water and other substances due to its large surface area. It is commonly used as a desiccant, a catalyst support, a chromatography medium, and as an additive in various industrial applications, including paints, plastics, and food processing.

This classification is distinguished from its sibling category, 2811.22.50.00, which is designated as "Other." While 2811.22.10.00 exclusively applies to the specific product form of synthetic silica gel, the "Other" category would encompass other silicon dioxide products that do not fit the precise definition of synthetic silica gel, potentially including naturally occurring forms or other synthetic silicon dioxide compounds not meeting the gel criteria.

As a leaf node, this category does not have further subcategories. Classification under 2811.22.10.00 is determined by the product being synthetic silica gel, manufactured and possessing the characteristic porous structure and adsorptive properties. The distinction from other silicon dioxide forms is crucial, focusing on the synthetic manufacturing process and the resulting gel-like physical state.