... vehiCle· appearance : Brownish liquid1. Usage :Good substitute of solid ferric chloride. In photoengraving; photography; manufacture of other Fe salts, pigments, ... 30% of cost compared with liquid/solid aluminum sulfate, polyaluminum chloride, polyferric sulfate. •Good flocculation property, with faster sedimentation compared ... 5Cu, %≤0.1Zn, %≤0.1Cr, %≤0.1Pb, %≤0.1 40% Yellow Ferric chloride solution