Solubility, Density, Refractive Index, and Viscosity for the Polyhydric Alcohol + CsBr + H2O Ternary Systems at Different Temperatures

2013 ◽  
Vol 58 (6) ◽  
pp. 1577-1588 ◽  
Author(s):  
Yanjie Li ◽  
Shu’ni Li ◽  
Quanguo Zhai ◽  
A. Marcilla ◽  
Yucheng Jiang ◽  
...  
Keyword(s):  
Refractive Index ◽  
Ternary Systems ◽  
Polyhydric Alcohol ◽  
Different Temperatures

Determination and correlation of refractive index of three binary and ternary systems containing hydroxyl ionic liquids/ water/methanol

2020 ◽  
Vol 10 (4) ◽  
pp. 469-478
Author(s):  
Gang Tian ◽  
Cong Yang ◽  
Xiaoxia Li ◽  
Guoxu He ◽  
Xiaojun Zhao ◽  
...  
Keyword(s):  
Refractive Index ◽  
Ionic Liquids ◽  
Mole Fraction ◽  
Ternary Systems ◽  
Different Temperatures ◽  
The Relationship ◽  
Binary And Ternary Systems

In this paper, the refractive index of methanol + water, [HOEMIm]Cl + methanol, [HOEMMIm]Cl + methanol, [OHEN1,1,1]Cl + methanol, [HOEMIm]Cl + water, [OHEN1,1,1]Cl + water, [HOEMMIm]Cl + water, [OHEN1,1]Cl + water, [HOEMIm]Cl + methanol + water, [HOEMMIm]Cl + methanol + water and [OHEN1,1,1]Cl+methanol+water at different temperatures were determined by refractometer. The physical database of hydroxyl ionic liquids was enriched, and the excess refractive index of these systems was obtained by calculation. The relationship between the refractive index or the excess refractive index and the composition mole fraction were established at 20 °C.

Solid–Liquid Equilibrium (SLE) for Polyhydric Alcohol + Cs2SO4 + H2O Ternary Systems at Different Temperatures

2014 ◽  
Vol 202 (10) ◽  
pp. 1304-1315 ◽  
Author(s):  
Rui Xiong ◽  
Dandan Zhao ◽  
Shuni Li ◽  
Quanguo Zhai ◽  
Yucheng Jiang ◽  
...  
Keyword(s):  
Ternary Systems ◽  
Polyhydric Alcohol ◽  
Liquid Equilibrium ◽  
Different Temperatures ◽  
Solid Liquid

Study the Effect of Heat Treatment and Pressure on some the Optical Properties of the Pure PVA Nano Polymer

2021 ◽  
Vol 900 ◽  
pp. 16-25
Author(s):  
Tabarak Mohammed Awad ◽  
May A.S. Mohammed
Keyword(s):  
Heat Treatment ◽  
Dielectric Constant ◽  
Refractive Index ◽  
Optical Properties ◽  
Absorption Coefficient ◽  
Polyvinyl Alcohol ◽  
Complex Dielectric Constant ◽  
Different Temperatures ◽  
German Origin ◽  
Increasing Temperature

In this study, some optical properties were studied of the pure vinyl polyvinyl alcohol (PVA) nanopolymer (German origin). Under the influence of different temperatures and pressures of PVA. Where 25 samples were prepared for the purpose of conducting the research. Which studied the study of these samples was done by recording the absorbance and transmittance spectra of the wavelengths (200-900) nm. From them, absorbance, transmittance, reflectivity, absorption coefficient, refractive index, extinction coefficient, complex dielectric constant were calculated. At different temperatures (25,40, 80, 120, 160)°C. And with different pressures within the range (7.5,8,8.5,9,9.5) MPa. The results are that the permeability of the polymer (PVA) at different temperatures for each pressure decreases with increasing temperature, and that all other calculated optical properties increase with increasing temperature.

The influence of oxygen pressure on lead oxidation kinetics

1980 ◽  
Vol 33 (3) ◽  
pp. 471 ◽  
Author(s):  
GA Hope
Keyword(s):  
Refractive Index ◽  
Pressure Dependence ◽  
Oxidation Kinetics ◽  
Oxidation Rate ◽  
Abrupt Change ◽  
Oxide Interface ◽  
Positive Dependence ◽  
Different Temperatures ◽  
Lead Films ◽  
Lead Oxidation

The dependence of the oxidation rate of lead films on the pressure of oxygen was investigated by ellipsometric and resistance techniques for oxygen pressures between 200 Pa and 100 kPa and in the temperature range 323-423 K. Measurements of the pressure dependence were obtained by studying the change in oxidation rate following an abrupt change in pressure. The results of all experiments indicated a small positive dependence, though significant variations in the values were observed both with extent of oxidation, and between experiments conducted at different temperatures. During the first few minutes of the reaction an unusual trend was noted in the observed kinetics which could be interpreted as being due to absorption of oxygen, by the metal close to the metal-oxide interface, resulting in changes to the metal conductivity and the refractive index, determined by ellipsometry, of the lead substrate.

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