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woelen
Super Administrator
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Posts: 7990
Registered: 20-8-2005
Location: Netherlands
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Mood: interested
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I had a similar experience with cobalt sulfate. The material I received was a fairly fine powder, which dissolves in water, but the solution is not
entirely clear. On standing for a day, I get a clear rose/red solution with a very thin layer of solid matter, settled on the bottom.
I also intend to recrystallize the cobalt sulfate. You wrote you used dilute H2SO4. What concentration of the acid did you use and what concentration
of cobalt sulfate did you use?
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karlos³
International Hazard
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Posts: 1520
Registered: 10-1-2011
Location: yes!
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Mood: oxazolidinic 8)
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Wow I am lucky this has never happened to me so far!
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Steam
Hazard to Others
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Posts: 238
Registered: 25-3-2014
Location: Minnesota
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Not wrong chemical but I have ordered some cyclohexanone from ebay- listing as for 1L and received 1mL... Knew it was too good to be true!
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