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Baroque

Having problems with making Aluminium rosinate

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Dear all, I dissolved 100g of granulated Burgundy rosin in 1% KOH, and let it dissolve by moderate vortxing over 6 days. After six days it had an amber color, but after a few hours it all accumulated on the bottom and appeared as powder which did not dissolve at all. The clear phase had a weak oily reflection, but it contained evidently so little Potassium Rosinate, that it gave no foam production when blended with Aluminium Potassium Sulphate (5% soln). 

 

Are there better approaches to make Aluminium Rosinate?

 

Thanks!

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