Organic ring compounds, para aminophenylacetic acid and 4 aminoantipyrine may also be added to the bath together with {HEAD ~ sodium ferrocyanide} to inhibit {TAIL ~ the oxidation} of the bivalent tin ions 
to inhibit
Organic ring compounds , para aminophenylacetic acid and 4 aminoantipyrine may also be added to the bath together with { HEAD ~ sodium ferrocyanide } to inhibit { TAIL ~ the oxidation } of the bivalent tin ions
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH