Nontoxic, high transmittance, high density fluid

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The discussion centers on finding a nontoxic liquid with high transmittance and a specific gravity greater than 1.3 for the purpose of separating resin without causing any dissolution or reaction with it. Potassium formate brine is suggested as a potential solution. Additionally, glycerol is mentioned, although its density of 1.26 may not meet the requirement, and there is uncertainty regarding its interaction with resin. A water/sucrose solution is also proposed as an alternative. The need for a suitable high-density fluid that meets these specific criteria is emphasized, with a focus on ensuring compatibility with resin.
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Hi, I'm looking for a liquid that is nontoxic, high transmittance, has a specific gravity higher than 1.3.
Here is the catch. I'm using it to separate resin, so it can not dissolve or react with resin.
there was a similar topic on high density fluid on other forums, but I'm using it differently.
I'm no chemist.Really need some help.
 
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Glycerol has a density of 1.26. I don't know, however, if it will react with or dissolve resin. You could also try a water/sucrose solution: http://lclane.net/text/sucrose.html
 

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