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serena
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bullet Topic: efflorescence
    Posted: 11 February 2003 at 12:36pm
I'm trying to prepare monoclinic celsian (BaAl2Si2O8) by sol-gel using Li2O or Na2O as dopants. Do you know how to avoid efflorescence phenomenon?
serena esposito
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bullet Posted: 12 February 2003 at 4:10am
What you mean by efflorescence ? Li or Sodium carbonates crystals growth out of the gel ?
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serena
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bullet Posted: 12 February 2003 at 6:14am

Sorry for the lack of details. I use LiNO3 and Na(CH3COO) as precursors of Li2O and Na2O, in solution Cl- is present. The gel is opaque and after drying some crystals seem to appear on surface of the dried gel. In case of lithium gel there are also orange spots

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