There is a hint here about the solvent http://www.popsci.com/scitech/article/2004-09/amazing-rusting-aluminum http://www.popsci.com/scitech/article/2004-09/ama

There is a hint here about the solvent http://www.popsci.com/scitech/article/2004-09/amazing-rusting-aluminum http://www.popsci.com/scitech/article/2004-09/amazing-rustin...