Inorganic Inorganic Rare Earth Salts Solutions Rare Earth Salts Solutions 5913 GFS ETCHANT FORMULA 13 GFS ETCHANT FORMULA 13 8/II 1.210 Contains Cerium IV and Dilute Nitric Acid, Extra strength and can be diluted to desired strength by adding water, 38201 0.00 4 L 38202 0.00 4 X 4 L Cerium IV concentration 0.50 +/- 0.02N