2h48m29s04f FLiNaK Molten Salt in Test Tube - Low Viscosity - Melts Like Glass - TR2016a
Channel: Thorium Remix
Date: 2017-05-09

And so here is some FLiNaK. This is like a fluoride salt. FLiBe  actually looks almost identical to this. Liquid salts are an outstanding heat transfer media.

Dr. David Holcomb:
It really doesn't matter what you're going to be transferring heat for- Whether this be a solar power tower, whether this be a salt cooled reactor, a Molten Salt Reactor, viscosity on it is 30 times larger. Water is very low viscosity so it's still very low viscosity fluid.

Baroness Bryony Worthington:
Some people might imagine this is quite a gloopy or kind of slow moving liquid but it's actually quite fluid. 

Dr. David Holcomb:
You're right. It does go through a melt much like a glass as opposed to water which doesn't quite do that. So we want to run it at 100 degrees or so above this so it does flow nicely.