2836.92.00.00 - Strontium carbonate

This HTS classification covers strontium carbonate, a chemical compound with the formula SrCO₃. It is a white, crystalline solid that is insoluble in water. Strontium carbonate finds significant applications in various industries, most notably in the manufacturing of cathode ray tubes (CRTs) for televisions and computer monitors, where it acts as a radiation shield. It is also utilized in pyrotechnics to produce a bright red color, in ceramic glazes, and in the production of other strontium compounds.

This subheading is distinguished from its sibling, 2836.91.00, which specifically enumerates lithium carbonates. While both are carbonates, the key differentiator here is the elemental composition: this category is exclusively for compounds containing strontium, whereas 2836.91.00 pertains to those containing lithium. The subsequent subheading, 2836.99, serves as a catch-all for carbonates not otherwise specified within the broader 2836.90 range.

As a leaf node in the HTS database, 2836.92.00.00 represents the most specific classification for strontium carbonate. Therefore, there are no further subcategories to introduce. Classification under this code is based on the chemical identification of the substance as strontium carbonate. Any goods meeting this specific chemical definition, regardless of purity or form (powder, granules, etc.), would fall under this classification, provided they are not part of a more complex mixture or preparation covered elsewhere.