2-Naphthylamine-4, 8 disulfonic acid. Chemical reagent proposed by Joseph T. Walker for use with desensitized photographic paper in spatial detection of gunpowder residues.
1
Shopping Cart
2-Naphthylamine-4, 8 disulfonic acid. Chemical reagent proposed by Joseph T. Walker for use with desensitized photographic paper in spatial detection of gunpowder residues.
1