High Dieletric constant but low loss liquid?

Anybody know any low loss(loss tangent of 0.05) liquid with dielectric constant of 10~20 ?
I'm triying to search from internet, however all the high dieletric liquid are high loss... And many websites didn't show the loss tangent of the liquid...

Alumina is near 10. I feel it will be ok.

thank you for yr reply.
But i hav question...I search for Alumina..but it is a solid...
i need liquid....

would you consider micro-spheres immersed in a liquid?

em...sorry....I'm not sure what is "micro-sphere"(sorry for my limited knowledge)
But i hope to get liquid that is easily accessible..

Added after 9 minutes:

I'm currently searching for liquid that can be easily buy from supermarket(like honey, syrup....etc)...rather than those chemicals that difficult to obtain...But those mixture are hard to know the dielectric constant and loss factor...
I found that Isopropyl Alcohol actually can achieve dielectric constant of 18.3..but i juz cant confirm its loss tangent...