2841.90.30.00 - Potassium stannate

This classification covers potassium stannate, a chemical compound where tin is present in an oxoanion of potassium. Potassium stannate typically appears as a white crystalline solid and finds applications in various industrial processes, including as a mordant in dyeing, a plating agent for tin coatings, and as a component in fire retardants. Its classification within salts of oxometallic or peroxometallic acids highlights its nature as a salt derived from an acid containing oxygen bonded to a central metal atom, in this case, tin.

When distinguishing potassium stannate from its sibling categories, it is important to note the specific metal and the type of oxometallic or peroxometallic acid from which the salt is derived. For instance, vanadates (2841.90.10.00) are salts of vanadic acid, ammonium perrhenate (2841.90.20.00) is a salt of perrhenic acid, and aluminates (2841.90.40.00) are salts of aluminic acid. Chromates of zinc or lead (2841.90.45.00) specifically refer to chromate salts of those particular metals. The "Other" category (2841.90.50.00) would encompass remaining salts of oxometallic or peroxometallic acids not otherwise specified.

As a leaf node, HTS code 2841.90.30.00 does not have further subdivisions. Classification under this code is determined by the specific identification of potassium stannate. Factors for correct classification would include chemical analysis confirming the presence of potassium and tin in the specified anionic form, and potentially the absence of other key components that might direct it to a different, more specific classification.