Electrical Conductivity Study of Aqueous Solutions for some Complexes of Manganese, Cobalt, Nickel and Copper Divalent Elements in Different Temperatures

The classical work of McBain on the electrical conductivity and other properties of aqueous solutions of the soaps led him to postulate the formation of the ionic micelle. This aggregate of ions has a greater mobility than that of the ions composing it, and its formation accounts for the characteristic increase in conductivity exhibited by colloidal electrolytes. The conception has resulted in great advance in the study of all classes of colloidal electrolytes e. g ., protein and gelatine salts, dyes, and other substances of high molecular weight.

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Viscosity, electrical conductivity and density of the system ammonium nitrate-dimethyl sulphoxide

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19841109 ◽

1984 ◽

Vol 49 (5) ◽

pp. 1109-1115

Author(s):

Jindřich Novák ◽

Zdeněk Kodejš ◽

Ivo Sláma

Keyword(s):

Electrical Conductivity ◽

Aqueous Solutions ◽

Ammonium Nitrate ◽

Transport Properties ◽

Calcium Nitrate ◽

Dimethyl Sulphoxide ◽

Present System ◽

Empirical Equations ◽

Concentrated Solutions ◽

Nitrate Solutions

The density, viscosity, and electrical conductivity of highly concentrated solutions of ammonium nitrate in dimethyl sulphoxide have been determined over the temperature range 10-60 °C and the concentration range 7-50 mol% of the salt. The variations in the quantities as a function of temperature and concentration have been correlated by empirical equations. A comparison is made between the transport properties for the present system, aqueous solutions of ammonium nitrate, and calcium nitrate solutions in dimethyl sulphoxide.

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Phase diagrams for the aqueous solutions of butyric acid with cyclohexane at different temperatures: Experimental and correlated data

Thermochimica Acta ◽

10.1016/j.tca.2011.05.017 ◽

2011 ◽

Vol 523 (1-2) ◽

pp. 154-160 ◽

Cited By ~ 15

Author(s):

H. Ghanadzadeh ◽

A. Ghanadzadeh ◽

S. Asgharzadeh ◽

N. Dastmoozeh

Keyword(s):

Aqueous Solutions ◽

Phase Diagrams ◽

Butyric Acid ◽

Correlated Data ◽

Different Temperatures

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Kinetics and thermodynamics of the sorption of furaltadone from aqueous solutions on magnetic multi-walled carbon nanotubes

Water Science & Technology ◽

10.2166/wst.2014.313 ◽

2014 ◽

Vol 70 (6) ◽

pp. 964-971

Author(s):

Xu Chen ◽

Zhen-hu Xiong

Keyword(s):

Carbon Nanotubes ◽

Aqueous Solutions ◽

Sorption Data ◽

Multi Wall Carbon Nanotubes ◽

Adsorption Behaviors ◽

Different Temperatures ◽

Multi Walled Carbon Nanotubes ◽

Pseudo Second Order ◽

Experimental Data Analysis ◽

Walled Carbon Nanotubes

Magnetic multi-wall carbon nanotubes (M-MWCNTs) were used as an adsorbent for removal of furaltadone from aqueous solutions, and the adsorption behaviors were investigated by varying pH, sorbent amount, sorption time and temperature. The results showed that the adsorption efficiency of furaltadone reached 97% when the dosage of M-MWCNT was 0.45 g · L−1, the pH was 7 and the adsorption time was 150 min. The kinetic data showed that the pseudo-second-order model can fit the adsorption kinetics. The sorption data could be well explained by the Langmuir model under different temperatures. The adsorption process was influenced by both intraparticle diffusion and external mass transfer. The experimental data analysis indicated that the electrostatic attraction and π–π stacking interactions between M-MWCNT and furaltadone might be the adsorption mechanism. Thermodynamic analysis reflected that adsorption of furaltadone on the M-MWCNT was spontaneous and exothermic. Our study showed that M-MWCNTs can be used as a potential adsorbent for removal of furaltadone from water and wastewater.

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