case of an ore containing ZnS and PbS, NaCN is used an depressant which selectively
prevents ZnS from coming to the froth.
case of an ore containing ZnS and PbS, NaCN is used an depressant which selectively
prevents ZnS from coming to the froth.
General principles and processes of isolation of elements 5 Sample Paper with Answer Sheet
case of an ore containing ZnS and PbS, NaCN is used an depressant which selectively
prevents ZnS from coming to the froth.
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