Apparent molar volumes, apparent isentropic compressibilities, and viscosity B-coefficients of 1-ethyl-3-methylimidazolium bromide in aqueous di-potassium hydrogen phosphate and potassium di-hydrogen phosphate solutions at T=(298.15, 303.15, 308.15, 313.15, and 318.15)K

2012 ◽  
Vol 54 ◽  
pp. 192-203 ◽  
Author(s):  
Mohammed Taghi Zafarani-Moattar ◽  
Shokat Sarmad
Keyword(s):  
Apparent Molar Volumes ◽  
Hydrogen Phosphate ◽  
Molar Volumes ◽  
Isentropic Compressibilities ◽  
Potassium Hydrogen ◽  
Phosphate Solutions ◽  
B Coefficients

Viscosities of glycine and DL–alanine in water acetonitrile mixtures between 25 and 40 °C

1980 ◽  
Vol 58 (15) ◽  
pp. 1512-1515 ◽  
Author(s):  
Nibaran C. Dey ◽  
Birendra K. Saikia ◽  
Inamul Haque
Keyword(s):  
Apparent Molar Volumes ◽  
Molar Volumes ◽  
Increase With Increase ◽  
B Coefficients ◽  
Limiting Value

The relative viscosities and densities of glycine in 5%, 10%, 15%, and 20% w/w acetonitrile–water mixtures at 25, 30, 35, and 40 °C and of DL-alanine in water, 5%, 15%, and 20% w/w acetonitrile water mixtures at 30 and 40 °C have been determined. The viscosity B coefficients have been found to increase with increase in concentration of acetonitrile and also with the increase of temperature in both cases.The limiting apparent molar volumes and limiting value of effective flow volumes have also been calculated.

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