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has been cited by the following article:

• TITLE: Effect of a Various Additivies to the Formation of Aqueous Biphasic System Polyetylenglycole (Peg)/Sodium Citrate/Water

  AUTHORS: Gunel M. Shahbazova, Eldar A. Masimov

  KEYWORDS: Polyetylenglycole, Sodium Citrate, Alcohols, Ethylene Glycol, Glycerin

  JOURNAL NAME: Open Access Library Journal, Vol.9 No.1, January 20, 2022

  ABSTRACT: Liquid-liquid equilibrium data for aqueous biphasic system formed by polyethylene glycol (PEG)/sodium citrate (C6H5O7Na3)/water (H2O) were determined at 298.15 K, respectively. Binodal data were correlated using a four- parameter equation. The effect of the molecular weight of PEG (1500, 3000, 6000) on the binodal curves was investigated, and it was found that the two-phase region expands with an increase in the molecular weight of PEG. The effects of some monohydric (methanol, ethanol, propanol) and polyhydric alcohols (ethylene glycol, glycerin) on the formation of biphasic system PEG/sodium citrate were examined simultaneously. It was found that the phase diagram binodal in the presence of ethylene glycol and glycerin to the system, obtained that binodal curve is slipped to the top of coordinate at the high concentrations, two-phase systems occur with a higher concentration of components which formed phases. This means that ethylene glycol and glycerin acts as a factor that destroys the structure of water, breaking the hydrogen bonds between water molecules.