Can solvents like 99.9% isopropyl alcohol and/or n-hexane be "carbonated" with CO2?
The following are published[1] solubilities of $\ce{CO2}$ in several organic solvents at 1 atm and $\mathrm{20^oC}$. Solubilities are given in mL/g:  


  acetone: 8.2
  ethanol: 3.6
  benzene: 2.7
  methanol: 4.1
  toluene: 3.0
  xylene: 2.3
  heptane: 2.8
  methyl acetate: 7.4
  diethyl ether: 6.3  


For reference, the solubility of $\ce{CO2}$ in water is about 0.9 mL/g under the same conditions.

1) Topham S et al; Carbon Dioxide. Ullmann's Encyclopedia of Industrial Chemistry. 7th ed. (1999-2015). New York, NY: John Wiley &amp; Sons