This is obtained by reaction of an aqueous slurry of zinc oxide with potassium dichromate, and sulfuric acid. It is also washed, filtered, dried and ground [5.56]. Zinc tetrahydroxychromate has been mainly used for the formulation and production of wash and shop primers based on polyvinylbutyrale resins.
Zinc Tetrahydroxychromate
25 декабря, 2015 Pokraskin