3206 Other colouring matter; preparations as specified in Note 3 to this Chapter, other than those of heading No 3203, 3204 or 3205 ; inorganic products of a kind used as luminophores, whether or not chemically defined:
3206 20 – Pigments and preparations based on titanium dioxide:
... 3206 20 2 – – – Zinc yellows (zinc chromate)
