polyethylene glycol MW 20,000 Temperature is 7-8¡C wt% log P (dynes/cm^2) 15.3 6.56 17.8 6.75 18.3 6.79 19.5 6.82 20.8 6.91 21.3 6.92 22.9 6.99 23.2 7.00 24.3 7.04