Salting Out

Post date: Dec 11, 2019 11:50:56 PM

"Salt" is often used as an additive during aqueous extractions. We use it in our Butyl Benzoate Lab to remove the Aliquat 336 phase transfer catalyst.

Useful Links for understanding salting out better:

• • There is a difference between "salting out" vs "salting in": https://blogs.sciencemag.org/pipeline/archives/2017/12/14/extraction-and-salting-out and open source ACS paper: https://pubs.acs.org/doi/abs/10.1021/acs.oprd.7b00197

  • Salt helps break an emulsion by increasing the surface tension of the droplets and increasing the density of the aqueous layer: http://www.columbia.edu/cu/chemistry/ugrad/hssp/EXP_3.html