Viscometric and Densiometric Investigation of Water–Polyethylene Glycol–KCl, KBr, KI Systems

Пашаев, Б. Г.; Rajabov, M. R.

doi:10.1134/s0036024422090254

Cited by 2 publications

(1 citation statement)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, as the concentration increases, the increase in ∆𝑆 𝜂 ≠ indicates that the system becomes more structured, and the decrease becomes relatively structured (Dakar & Korableva, 1998;Pashayev & Rajabov, 2022). As can be seen from Figure 5, the temperature and concentration in the considered range ∆𝑆 𝜂 ≠ first increase with increasing ethanol concentration in water-ethanol and water-ethanol-urea systems, exceeding the maximum at 𝑥 𝑒𝑡.…”

Section: Resultsmentioning

confidence: 96%

Viscous flow and structural properties in water-ethanol-urea systems

Pashayev,

Aliyev

2024

APR

View full text Add to dashboard Cite

The structural features of water-ethanol, water-urea and water-ethanol-urea systems were studied on the basis of experimental estimates of kinematic viscosity at different temperatures and concentra-tions. For this purpose, the concentration dependences of the Gibbs energy of activation of the viscous flow, the enthalpy of activation of the viscous flow and the entropy of activation of the viscous flow of the studied systems were analyzed. The results show that ethanol has a structuring and then de-structive effect on water up to a concentration of 0.15 molar, and urea has a destructive effect on the structure of water, starting from such small concentrations. The addition of urea to the ethanol-water system does not affect the inversion point.

show abstract

Section: Resultsmentioning

confidence: 96%