mgilbert754
Harmless
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Registered: 14-8-2012
Location: South Carolina USA
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Purifying Potassium dichromate
Here at CAI we are reclaiming the elements from used COD tubes (Ag, Hg and Cr.)
Once we have precipitated potassium dichromate, anybody have a suggestion for a simple purification procedure?
Mark Gilbert
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elementcollector1
International Hazard
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Registered: 28-12-2011
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Recrystallization.
Elements Collected:52/87
Latest Acquired: Cl
Next in Line: Nd
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blogfast25
Thought-provoking Teacher
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Yes, RC. K2Cr2O7 isn't highly soluble in cold water but very soluble in hot water. Ideal for recrystallisation purposes...
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