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Nacn is Added in an Ore Containing Pbs and Zns During Concentration by Froth Floatation Method? - Chemistry

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Short Note

What happens when NaCN is added in an ore containing PbS and ZnS during concentration by froth floatation method? 

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Solution

 NaCN act as depressants, and prevents ZnS from coming to froth by reacting with it, whereas PbS comes to the froth. Topic:Metullargy_Subtopic:Froth 

Concept: Refining
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