Skip to Content
Merck
  • Determination of solubility parameters of ionic liquids and ionic liquid/solvent mixtures from intrinsic viscosity.

Determination of solubility parameters of ionic liquids and ionic liquid/solvent mixtures from intrinsic viscosity.

Chemphyschem : a European journal of chemical physics and physical chemistry (2014-08-26)
Piyarat Weerachanchai, Yuewen Wong, Kok Hwa Lim, Timothy Thatt Yang Tan, Jong-Min Lee
ABSTRACT

The total and partial solubility parameters (dispersion, polar and hydrogen-bonding solubility parameters) of ten ionic liquids were determined. Intrinsic viscosity approaches were used that encompassed a one-dimensional method (1D-Method), and two different three-dimensional methods (3D-Method1 and 3D-Method2). The effect of solvent type, the dimethylacetamide (DMA) fraction in the ionic liquid, and dissolution temperature on solubility parameters were also investigated. For all types of effect, both the 1D-Method and 3D-Method2 present the same trend in the total solubility parameter. The partial solubility parameters are influenced by the cation and anion of the ionic liquid. Considering the effect on partial solubility parameters of the solvent type in the ionic liquid, it was observed that in both 3D methods, the dispersion and polar parameters of a 1-ethyl-3-methylimidazolium acetate/solvent (60:40 vol %) mixture tend to increase as the total solubility parameter of the solvent increases.

MATERIALS
Product Number
Brand
Product Description

Supelco
2-Propanol, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
1-Ethyl-3-methylimidazolium diethyl phosphate, ≥97% (HPLC)
Supelco
2-Propanol, analytical standard
Sigma-Aldrich
Ethanol, tested according to Ph. Eur.
Sigma-Aldrich
2-Pyrrolidinone, purum, ≥98.0% (GC)
Sigma-Aldrich
Dimethyl sulfoxide, anhydrous, ≥99.9%
Sigma-Aldrich
2-Pyrrolidinone, ≥99%
Sigma-Aldrich
Ethyl alcohol, Pure, 190 proof, ACS spectrophotometric grade, 95.0%
Sigma-Aldrich
Butyl alcohol, natural, ≥99.5%, FCC, FG
Sigma-Aldrich
2-Pyrrolidinone, 99%
Sigma-Aldrich
8-Octanoyloxypyrene-1,3,6-trisulfonic acid trisodium salt, suitable for fluorescence, ≥90% (HPCE)
Sigma-Aldrich
Dimethyl sulfoxide, BioUltra, for molecular biology, ≥99.5% (GC)
Sigma-Aldrich
Ethanol, for residue analysis
Sigma-Aldrich
Dimethyl sulfoxide, sterile-filtered, BioPerformance Certified, meets EP, USP testing specifications, suitable for hybridoma
Supelco
Dimethyl sulfoxide, analytical standard
Sigma-Aldrich
Dimethyl sulfoxide, ≥99.5% (GC), suitable for plant cell culture
Sigma-Aldrich
Dimethyl sulfoxide, for molecular biology
Sigma-Aldrich
Dimethyl sulfoxide, Hybri-Max, sterile-filtered, BioReagent, suitable for hybridoma, ≥99.7%
Sigma-Aldrich
Dimethyl sulfoxide, meets EP testing specifications, meets USP testing specifications
Sigma-Aldrich
1-Ethyl-3-methylimidazolium diethyl phosphate, ≥98.0%
Sigma-Aldrich
Ethanol, BioUltra, for molecular biology, ≥99.8%, (absolute alcohol, without additive, A15 o1)
Sigma-Aldrich
Ethyl alcohol, Pure, 200 proof, meets USP testing specifications
Sigma-Aldrich
Methanol solution, NMR reference standard, 4% in methanol-d4 (99.8 atom % D), NMR tube size 3 mm × 8 in.
Supelco
Dimethyl sulfoxide, for inorganic trace analysis, ≥99.99995% (metals basis)
USP
Methyl alcohol, United States Pharmacopeia (USP) Reference Standard
Sigma-Aldrich
2-Propanol, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.8% (GC)
Sigma-Aldrich
2-Propanol, HPLC Plus, for HPLC, GC, and residue analysis, 99.9%
Sigma-Aldrich
Allyl alcohol, ≥98.5%
Sigma-Aldrich
Allyl alcohol, ≥99%
Sigma-Aldrich
Dimethyl sulfoxide, PCR Reagent