Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Characterizing the Effects of a “Switchable Water” Additive on the Aqueous Solubility of Small Molecules
 
research article

Characterizing the Effects of a “Switchable Water” Additive on the Aqueous Solubility of Small Molecules

Vanderveen, Jesse R.
•
Burra, Sarika
•
Geng, Jialing
Show more
2018
ChemPhysChem

“Switchable water” is an aqueous solution containing a water‐soluble amine additive that exhibits CO2‐switchable properties, such as large changes in ionic strength, by forming an ammonium bicarbonate salt. Switchable water has been used to reversibly “salt‐out” organic compounds from water. This study explores the salting out of several compounds in switchable water when CO2 is present and also explores the solubility of small molecules in switchable water, compared to pure water, when CO2 is absent. The results show that organic compounds are generally more soluble in switchable water than pure water in the absence of CO2, but less soluble in the presence of 1 atm CO2. Exceptions include carboxylic acids and phenols which, presumably due to their acidity, are more soluble in switchable water than in pure water, even when CO2 is applied. Kirkwood–Buff solvation theory was applied to gain insights into the effects of the amine additive on the aqueous solubility of caffeine. Furthermore, the switchable properties of the additives allow for the preparation of switchable aqueous two‐phase systems.

  • Details
  • Metrics
Type
research article
DOI
10.1002/cphc.201701303
Author(s)
Vanderveen, Jesse R.
Burra, Sarika
Geng, Jialing
Goyon, Alexandre
Jardine, Alexander
Shin, Hyejin E.
Andrea, Tamer
Dyson, Paul Joseph  
Jessop, Philip G.
Date Issued

2018

Published in
ChemPhysChem
Volume

19

Issue

16

Start page

2093

End page

2100

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LCOM  
Available on Infoscience
August 30, 2018
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/148067
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés