The amount of additive initially used was {HEAD ~ 1.25 g tolyltriazole} in {TAIL ~ 50 ml isopropyl alcohol} per liter of etchant 
in
The amount of additive initially used was { HEAD ~ 1.25 g tolyltriazole } in { TAIL ~ 50 ml isopropyl alcohol } per liter of etchant
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH