【How about playing with iron sand?】 Showa Chemical Co., Ltd. CAS No. 7439-89-6 Fe AW: 55.847 Name/Component: Iron, powder Content: 85.0% Hazard Class III This is a set of 4 reagent containers. Used only once in an experiment, it is almost unused and in new condition. This is not iron oxide. * Due to use, the amount has decreased from the original 500g x 4 = 2000g to approximately 1900g. * Although there is no oxidation or rust as it was stored in a sealed container, please refrain from purchasing if you are concerned. This is very fine iron sand, mesh 100. Please consider it for magnet play, etc. (Please be careful of fire and contamination from spills)