The temperature dependence of the micellisation of chlorpromazine hydrochloride in aqueous solution

2000 ◽  
Vol 278 (7) ◽  
pp. 706-709
Author(s):  
M. Pérez-Rodríguez ◽  
L. M. Varela ◽  
P. Taboada ◽  
D. Attwood ◽  
V. Mosquera
Keyword(s):  
Aqueous Solution ◽  
Temperature Dependence ◽  
Chlorpromazine Hydrochloride

Thermal Anomaly in the Temperature Dependence of the Energy–Volume Coefficient of Aqueous KCl Solutions

1973 ◽  
Vol 51 (12) ◽  
pp. 1885-1888 ◽  
Author(s):  
Ikchoon Lee ◽  
J. B. Hyne
Keyword(s):  
Aqueous Solution ◽  
Temperature Dependence ◽  
Potassium Chloride ◽  
Direct Measurement ◽  
Pure Water ◽  
Pressure Coefficient ◽  
Thermal Anomaly ◽  
Thermal Pressure ◽  
Temperature Range ◽  
Volume Coefficient

The temperature dependence of the energy–volume coefficient of pure water and of aqueous potassium chloride solutions as a function of concentration over the temperature range 10–50 °C has been determined by direct measurement of constant volume thermal–pressure coefficient. The results show that a thermal anomaly exists in the energy–volume coefficient of aqueous solution in the temperature range 30–40 °C and becomes more pronounced as the concentration of solute is increased.

Temperature dependence of the rate of rapid reactions of proton transfer in aqueous solution

1974 ◽  
Vol 23 (2) ◽  
pp. 271-276
Author(s):  
L. A. Katsman ◽  
M. N. Vargaftik ◽  
Ya. K. Syrkin
Keyword(s):  
Aqueous Solution ◽  
Proton Transfer ◽  
Temperature Dependence

scholarly journals LiNa3(SO4)2·6H2O: a lithium double salt causing trouble in the industrial conversion of Li2SO4 into LiOH

2021 ◽  
Vol 77 (9) ◽  
Author(s):  
Horst Schmidt ◽  
Iris Paschke ◽  
Wolfgang Voigt
Keyword(s):  
Thermal Analysis ◽  
Aqueous Solution ◽  
Temperature Dependence ◽  
Lattice Parameters ◽  
Powder Xrd ◽  
Double Salt ◽  
Salt Hydrate ◽  
Space Group ◽  
Different Temperatures

Lithium trisodium bis(sulfate) hexahydrate, LiNa3(SO4)2·6H2O was crystallized from aqueous solution at 298 K and the structure solved at different temperatures between 90 and 293 K. The structure is isomorphic with the corresponding molybdate and selenate double salt hydrate. It belongs to the non-centrosymmetric trigonal space group R3c (161). The temperature dependence of the lattice parameters has been determined. Further characterization by powder XRD and thermal analysis is reported.

The Temperature Dependence of the Electrical Conductivity Activation Energy of the of Aqueous Electrolyte Solutions

2021 ◽  
Vol 1031 ◽  
pp. 228-233
Author(s):  
Yuliya M. Artemkina ◽  
Vladimir V. Shcherbakov ◽  
Irina A. Akimova
Keyword(s):  
Activation Energy ◽  
Aqueous Solution ◽  
Temperature Dependence ◽  
Aqueous Electrolyte ◽  
Electrolyte Solutions ◽  
Temperature Step ◽  
Conductivity Activation Energy ◽  
Intermolecular Hydrogen Bonds ◽  
Optimal Value ◽  
Increasing Temperature

The procedure for determining the activation energy of conductivity Еκ is analyzed depending on the temperature step ΔT. It is shown that with increasing ΔT, the error in the calculation of Eκ decreases, but the calculated value of Eκ decreases. In order not to lose the temperature dependence of the activation energy, it is necessary to choose the optimal value of Δt. In our opinion, this value should not exceed 5 – 10 °C. Taking into account the decrease in concentration with increasing temperature due to a decrease in density has virtually no effect on the accuracy of determining Eκ, provided that ΔT is 5 – 10 °C. It has been shown that in the temperature range 20 – 80 °C, the activation energy of conductivity decreases with increasing temperature. This decrease is due to the rupture of intermolecular hydrogen bonds of the solvent with increasing temperature. It was suggested that the movement of ions in an aqueous solution may be accompanied by the breaking of hydrogen bond of the solvent.

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