extra thick ironing board cover_ironing board cover 120 x 40

2. In the production of a pigment the steps comprising adding titanium acid cake containing titanium oxide and sulphuric acid to a solution containing barium sulphide in excess of the amount required to neutralize the sulphuric acid, while rapidly agitating the solution, mixing the resultant mass with a solution of zinc sulphate, and separating the composite precipitate.