Frank Seibert Forum Moderator 7 Posts
Re: What are common test systems for liquid-liquid extraction?2 June 2010 at 1:29pm
The most common test system for liquid-liquid extraction is toluene/acetone/water. I would recommend benchmarking your equipment with this extraction mixture. The pulsed extraction data could be compared with those published for this system.
Another recommended test system is n-butanol/succinic acid/water. This system provides a very low interfacial tension (~ 2 dynes/cm compared to 25 dynes/cm with the acetone system). The analytical for both systems utilizes simple titration. It is highly recommended that these extractions be performed in a well-ventilated hood. Butanol has a very strong odor.