2840.11.00.00 - Anhydrous

This HTS category, 2840.11.00.00, specifically covers anhydrous disodium tetraborate, commonly known as anhydrous refined borax. This form of refined borax is characterized by its absence of water molecules within its crystalline structure. Its primary uses include industrial applications such as glass manufacturing, ceramic production, detergents, and as a flux in metallurgy.

The distinction between this category and its sibling, 2840.19.00.00 (Other), lies in the hydration state. While 2840.11.00.00 is strictly for the anhydrous form, the "Other" category would encompass all other forms of disodium tetraborate that are not anhydrous, such as various hydrated borax salts.

As a leaf node within the HTS classification system, 2840.11.00.00 does not have further subdivisions. Therefore, classification under this code is determined by confirming the chemical identity as disodium tetraborate and verifying that the product is in its anhydrous state, as opposed to any hydrated forms.