Chapter 22 Laboratory: Forensic Chemistry 393TABLE 22-2: Observed data
AnalyteMarquis reagent
color changenitric acid
color changeFerric chloride
color changeAcetaminophenAspirin (powder)Baking soda (powder)Cough medicine (prescription)Dristan (powder)Excedrin (powder)Loperamide HCl (Imodium)Mace (spice)Sugar (crystals)a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.