ZINC SELENITE (Selenious acid) Zinc Selenite, Zn Selenite (ZnSeO3) is a substance which is widely utilized in the manufacture of glass and ceramic glaze industry. It is also known as Selenious acid zinc salt belongs to the product categories of metal and ceramic Science; Salts; Zinc Salts. It is offered in Technical and Laboratory Grade. It is available in the form of White crystals packed in 25kg, 50kg HDPE Bag. We can offer it in many grades as per the application needs in different industry sectors.