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