[Histonet] Lithium carbonate

[John Kiernan]

The solubility of Li2CO3 is 1.28% in cold water but only 0.71% in boiling water (data from the Merck Index). I've always kept on the lab shelf a bottle of saturated solution, with a little powder on the bottom. This keeps for ever and can be diluted 20-fold with water for such purposes as blueing haemalum or differentiating luxol fast blue. Lithium carbonate doesn't dissolve in alcohol, but that shouldn't be a problem. It's just a convenient, though rather expensive, source of not-too-alkaline water.
 
John Kiernan 
Anatomy, UWO 
London, Canada 
 = = =
On 15/11/11, Nancy Schmitt <Nancy_Schmitt <@t> pa-ucl.com> wrote: 

> 
> Good Morning-
> Making up some lithium carbonate - it is staying very milky in appearance - have not previously had that happen.  We tried a couple different times - same result.  We are not doing anything different - 5g lithium carbonate to 500ml Type I water.
> Any thoughts?
> Thanks, Nancy
> 
> 
> 
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