Technical Data Sheet Sample Iron (III) chloride (FeCl3)Iron (III) chloride is a mild oxidizing agent and participates in various carbon-bond forming reactions. On crystallization with water, it forms hydrates. It can be prepared by reacting chlorine with the scrap iron at approximately 650°C. Spec.UnitComposition39-41W/W %FeCl3Max 0.3W/W %FeCl2Max 0.7W/W %HClMax 0.05W/W %Insoluble In WaterMax 0.5W/W %ZnMax 0.001W/W %AsMax 0.005W/W %PbMax 0.0001W/W %HgMax 0.1W/W %MnMax 0.0001W/W %CdMax 0.01W/W %CrMax 0.0001W/W %SeMax 0.001W/W %NiMax 0.001W/W %Sb