Methyl Isobutyl Ketone
Used as a solvent for nitrocellulose, lacquers, and certain polymers and resins.
It can be used to extract gold, silver and other precious metals from cyanide
solutions, such as those found at gold mines, to determine the levels
of those dissolved metals. Developer for PMMA electron beam lithography resist. Used as a solvent for CS in the preparation of the CS spray used currently by British police forces.