The Apprentice Posted September 14, 2010 Share Posted September 14, 2010 Is zinc powder just crushed zinc? Link to comment Share on other sites More sharing options...
Mr Skeptic Posted September 15, 2010 Share Posted September 15, 2010 Sort of, but remember that metals are hard to "crush" since they are malleable. Link to comment Share on other sites More sharing options...
The Apprentice Posted September 16, 2010 Author Share Posted September 16, 2010 (edited) Is there an easy way to do it? mabey by breaking it down with hydrochloric acid? but then that wouldnt give the end result i want... Edited September 16, 2010 by The Apprentice Link to comment Share on other sites More sharing options...
ammonium nitrate Posted December 5, 2010 Share Posted December 5, 2010 angle grinder Link to comment Share on other sites More sharing options...
Guest pitidiren Posted February 25, 2011 Share Posted February 25, 2011 Zinc powder is not just the crushed zinc. Link to comment Share on other sites More sharing options...
Blossom Posted February 25, 2011 Share Posted February 25, 2011 Probably yes. Zinc is metal but less dense than iron. Link to comment Share on other sites More sharing options...
elementcollector1 Posted October 18, 2011 Share Posted October 18, 2011 There is a way to do it with muriatic acid, but it requires a more reactive metal, such as magnesium. This is a single displacement reaction: ZnCl2 + Mg -> Zn + MgCl So dissolve the zinc in excess hydrochloric acid (until there is no further reaction with the zinc), and add a block of magnesium. The zinc will be precipitated out as a powder, which can then be washed with water and dried. Link to comment Share on other sites More sharing options...
John Cuthber Posted October 19, 2011 Share Posted October 19, 2011 There is a way to do it with muriatic acid, but it requires a more reactive metal, such as magnesium. This is a single displacement reaction: ZnCl2 + Mg -> Zn + MgCl So dissolve the zinc in excess hydrochloric acid (until there is no further reaction with the zinc), and add a block of magnesium. The zinc will be precipitated out as a powder, which can then be washed with water and dried. Displacement reactions like that are only marginally effective. What often happens is that the zinc will react with the water to produce hydrogen and zinc hydroxide. Of course, if there is excess acid present (as you have suggested) then the zinc will react with that, so you will just get a solution of the mixed chlorides and hydrogen. In any event, you won't get MgCl because Mg doesn't have a stable +II oxidation state. Link to comment Share on other sites More sharing options...
elementcollector1 Posted October 19, 2011 Share Posted October 19, 2011 Displacement reactions like that are only marginally effective. What often happens is that the zinc will react with the water to produce hydrogen and zinc hydroxide. Of course, if there is excess acid present (as you have suggested) then the zinc will react with that, so you will just get a solution of the mixed chlorides and hydrogen. In any event, you won't get MgCl because Mg doesn't have a stable +II oxidation state. It... doesn't? It's an alkaline earth metal. And in that case, I'd like to add something to the procedure. Between dissolving acid and adding magnesium, you should first: -Boil down the solution (carefully and outside, you don't want HCl inside your home) -Re-dissolve the zinc in distilled water. Would that work better? Link to comment Share on other sites More sharing options...
Guest meercy Posted October 24, 2011 Share Posted October 24, 2011 (edited) Fine zinc powders (formerly named zinc dust) serve as protective pigment in industrial coatings or as reducing agent and catalyst in various chemical reactions. 5 plants: Angler (B), Laraine (No), Changsha (Ch), Johan Baruch (Mal) and Melbourne (Au) 100 000 T of very Fine Zinc Powder of which 30% produced from recycled secondary zinc more than 20 different grades serving various industries To know about go to Zinc Edited October 24, 2011 by meercy Link to comment Share on other sites More sharing options...
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