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Topic: fusion of zinc chloride?  (Read 7104 times)

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fusion of zinc chloride?
« on: October 12, 2004, 09:50:26 AM »
What is meant by "fusing" a salt, in my case zinc chloride? I am curious of the method, as ZnCl2 is very hygroscopic. I have melted samples of (fairly old) zinc chloride, whereupon the white solid browned and then turned black. The same happened under inert atmosphere - any idea what's happening? Thanks, RH


  • Guest
Re:fusion of zinc chloride?
« Reply #1 on: October 13, 2004, 03:09:00 PM »
Fusing means melting, sometimes in order to remove water tied to the salt. Sometimes fusing means melting a salt with a refractory compound in order to dissolve/decompose the refractory into the salt medium.
Well, ZnO is white, but if Zn picks up some other metal contaminants from the crucible, it could turn dark.

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