A simple model for the refractive index of sodium iodide aqueous solutions

2000 ◽  
Vol 28 (3) ◽  
pp. 282-283 ◽  
Author(s):  
T. L. Narrow ◽  
M. Yoda ◽  
S. I. Abdel-Khalik
Keyword(s):  
Refractive Index ◽  
Simple Model ◽  
Aqueous Solutions ◽  
Sodium Iodide

Structural and Optical Characteristics of Aqueous Solutions of Acetic Acid

2019 ◽  
Vol 73 (5) ◽  
pp. 503-510 ◽  
Author(s):  
Shukur Gofurov ◽  
Urol Makhmanov ◽  
Abdulmutallib Kokhkharov ◽  
Oksana B. Ismailova
Keyword(s):  
Raman Spectroscopy ◽  
Refractive Index ◽  
Acetic Acid ◽  
Aqueous Solutions ◽  
Mole Fraction ◽  
Optical Characteristics ◽  
Ir And Raman Spectroscopy ◽  
Refractometric Method ◽  
Ft Ir ◽  
Ir And Raman

A refractometric method, coupled with molecular dynamics study, attenuated total reflection Fourier transform infrared (ATR FT-IR), and Raman spectroscopy, was used to determine optical characteristics of concentration features of aqueous solutions of acetic acid. Measurements of the refractive index of aqueous solutions of acetic acid in the wide range of acetic acid concentrations (∼ 0 ÷ 1 mole fraction) in a solution at a room temperature were conducted. Maximum value of refractive index was detected at a concentration of ∼0.3 mole fraction. The deviation from the parabolic form of the dependence of the refractive index on the concentration occurs at a concentration of ∼0.8 mole fraction. As far as we know, this deviation has been observed for the first time. The maximum is attributed to the largest number of molecular interactions between water and acetic acid molecules, while the deviation is associated with the parallel orientation of acetic acid molecules. To identify the reconstructing of molecules in the system, FT-IR and Raman spectra of these solutions at a concentration of ∼0.3 and ∼0.8 mole fraction were recorded and compared with pure solutions. The data obtained by using ATR FT-IR and Raman spectroscopy support the idea that the refractometric method is sensitive to determine the structural states of aqueous solutions of acetic acid.

Kinematic Viscosity and Refractive Index of Aqueous Solutions of Ethanol and Glycerol

2009 ◽  
Vol 48 (4) ◽  
pp. 2157-2161 ◽  
Author(s):  
Ramon Moreira ◽  
Francisco Chenlo ◽  
Damien LeGall
Keyword(s):  
Refractive Index ◽  
Aqueous Solutions ◽  
Kinematic Viscosity

Refractive index of sodium iodide

2012 ◽  
Vol 111 (4) ◽  
pp. 043521 ◽  
Author(s):  
G. E. Jellison ◽  
L. A. Boatner ◽  
J. O. Ramey ◽  
J. A. Kolopus ◽  
L. A. Ramey ◽  
...  
Keyword(s):  
Refractive Index ◽  
Sodium Iodide
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