[Dmitrey]

hi all,
I'm looking for a transparent nontoxic liquid (at room temperature) with density ~2.5g/cm3 and viscosity around liquid Si, that is near viscosity of water (http://en.wikipedia.org/wiki/Viscosity#Viscosity_of_water) for experiments with bubbles going up in the liquid.

Difference 10-20 % is ok.

Any ideas? (maybe something like a salt dissolved in water)

Thank you in advance, D.