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