When will a liquid be able to dissolve iron oxide?

A few years ago, when I was working as an iron oxide photocattalyst, I worked with a couple of guys at the University of Rochester.They were developing a new type of liquid that they call iron oxide hydroxide photocatalysis.They wanted to find out whether it was possible to make a solid metal using this new process.If it was, they wanted to make it solid at the same temperature.When I met them, th...