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Author: Subject: How to make liquid spheres coalesce faster?
fusso
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[*] posted on 8-7-2019 at 08:14
How to make liquid spheres coalesce faster?


I want to extract I2 from aqueous mixture using DCM. The mixture has I2, KNO3, HNO3 and maybe a trace of (H/K)IO3. The I2/DCM spheres only float and coalesce very slowly. How to make it coalesce faster?



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RedDwarf
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[*] posted on 8-7-2019 at 11:27


One or more of :
Heating
Electrostatic field
Centrifuge
Addition/removal of surfactant to reduce energy needed for coalescence.
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happyfooddance
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[*] posted on 8-7-2019 at 14:18


Also, relative density.
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SWIM
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[*] posted on 9-7-2019 at 14:58


Quote: Originally posted by happyfooddance  
Also, relative density.


Maybe especially.

Dichloromethane is not much good at floating.
If you've got a solvent with a density below 1 which will do the job I bet it'll float damned fast in an aqueous solution that's dense enough to float DCM.




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