RE: Ferric citrate in VDB formulas

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From: Sandy King (sanking@clemson.edu)
Date: 07/25/02-02:04:05 PM Z

Philippe wrote:

>If you look at the periodic table of the elements, you will see that
>in the sodium family you also have lithium, potassium, rubidium,
>cesium. If the next test gives you a clear change in contrast, then
>it's getting exciting.
>You will probably be able to tune the contrast of VDB only by
>changing this ion, using
>
>Sodium Ferric Citrate = Ferric Citrate + Sodium Citrate
>Lithium Ferric Citrate = Ferric Citrate + Lithium Citrate
>Potassium Ferric Citrate = Ferric Citrate + Potassium Citrate
>Cesium Ferric Citrate = Ferric Citrate + Cesium Citrate
>Ammonium Ferric Citrate = Ferric Citrate + Ammonium Citrate

Thanks for the information. It would be interesting to see how
lithium citrate, potassium citrate and cesium citrate work. Now to
see if I can locate small quantities of them at a reasonable cost to
carry out the tests!!

Sandy 

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