配方类型:

METAL TREATMENTS

配方说明:

配方组成:

calcium chloride sol'n. (40? be)/to make 1.00 qt
ammonium bromide/16.0 g
hydrochlorid acid (conc. C.P.)/14.2 cc
copper chloride/81.1 g

配制方法:

mix all ingredients together until uniform.
NOTE: this is a controlled etch for aluminum since its action produces no undercut. the depression produced has almost straight walls, closing in slightly at bottom.