Sciencemadness Discussion Board

residual solvent

mansi2005 - 17-5-2006 at 01:32

In our API IPA as a residual solvent appear as 9000 ppm limit is 2000 ppm & drying condition is 80°C under vaccum. so how can i remove it? please suggest me appropriate answer.

stoichiometric_steve - 17-5-2006 at 02:37

calcium chloride.

bio2 - 17-5-2006 at 03:05

IPA doesn't react as readily as lower alcohols with CaCl2

.........drying condition is 80°C under vaccum.........

With a rotary evaporator?

Need details like how long at what pressure etc.

Drying your subustance with P2O5

Aboveneh - 17-5-2006 at 03:25

guys have u ever done drying your subustance with P2O5 , can some body post details , including setup of instrumetnts. Help apperciated .