The Vespiary
The Hive => Chemicals & Equipment => Topic started by: gruns on November 05, 2003, 08:43:00 PM
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73.9g NiO + 192.3ml 32% HCl = plate of soggy green crap that WILL NOT DRY.
I noticed that it melts into a thick, clear green liquid when heated and upon cooling crystallizes into a crusty bright green paste with a little extra neon green fluid running around...
How do I get this to a point where it can be accurately measured for subsequent reactions?
Is this NiCl2.6H2O?
[edit]
Ok.. that last little bit finally solidified, I poked it
a few times, doesn't seem to be any more fluid left...
Tastes like green apple jolly ranchers...
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Yes it could be your produkt. NiCl2*H2O is indeed green while NiCl2 anhydrous is yellow.
recrystallize it from water 2 or 3 times till it ll be pure.
;D
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How would I go about doing that? Merely dissolve what
I have now in water then... cool the water? Boil it off?
Dissolve then reduce the volume, cool to half-crystallized then filter?
/me aquires extreme nickel sensitivity due to lack of proper protective handware whilst experimenting.
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Dissolve then reduce the volume, cool to half-crystallized then filter?
Yes, but aim for at least a 80% recovery. According to "Purification of Laboratory Chemicals", 4th ed. the crystallization is to be performed from dilute (I assume ~5%) hydrochloric acid to give a pure product. I'd say that a single recrystallization is enough for most purposes.
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me aquires extreme nickel sensitivity due to lack of proper protective handware NiCl2 is corrosive
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I'm not touchin' that stuff... I'm going to make my lab
monkey do it. And by "lab monkey" I'm not humorously
referring to some human lackey, I mean a standard rhesus
monkey. You'd be surprised how trainable they are.
Report from Joey:
Innovation #2232
Baking a thin layer of sat. NiCl2.6H2O sol'n at 350F in
a 9"x9" square pyrex baking dish results in the flaky
yellow anhydrous form.