The author of 《Physical properties of ethylene glycol-based deep eutectic solvents》 were Ibrahim, Rusul Khaleel; Hayyan, Maan; AlSaadi, Mohammed Abdulhakim; Ibrahim, Shaliza; Hayyan, Adeeb; Hashim, Mohd Ali. And the article was published in Journal of Molecular Liquids in 2019. Quality Control of Methyltriphenylphosphonium bromide The author mentioned the following in the article:
Deep eutectic solvents (DESs) have been widely recognized as ionic liquids (ILs) analogs due to their low production cost and superior favorable properties over conventional ILs. Studying the phys. properties of these solvents will contribute to design processes involving DESs. In this study, five DESs have been successfully prepared using ethylene glycol (EG) as hydrogen bond donor (HBD) with N,N-diethylethanolammonium chloride (DAC), benzyltriphenylphosphonium chloride (BTPC), choline chloride (ChCl), methyltriphenylphosphonium bromide (MTPB) and tetra-n-butylammonium bromide (TBAB) as salts. The f.p. of each of the five studied DESs was measured using Differential Scanning Calorimetry (DSC) and the DES functional groups were identified using the Fourier transform IR (FTIR) spectroscopy. Moreover, the viscosity, d., elec. conductivity and surface tension were measured at a temperature range of 293.15-353.15 K and they were highly affected by the variation of the temperature It is worth mentioning that the studied DESs showed many phys. characteristics similar to that of ILs, which boost their possibilities to be employed in interdisciplinary domains.Methyltriphenylphosphonium bromide(cas: 1779-49-3Quality Control of Methyltriphenylphosphonium bromide) was used in this study.
Methyltriphenylphosphonium bromide(cas: 1779-49-3) is an organophosphorus compound, with potential use as a precursor and a solvent in organic synthesis. And it is used widely for methylenation via the Wittig reaction.Quality Control of Methyltriphenylphosphonium bromide
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary