Viscosity of aqueous Ni(NO3)2 solutions at temperatures from (297 to 475) K and at pressures up to 30 MPa and concentration between (0.050 and 2.246) mol·kg−1

Abdulagatov, Ilmutdin M.; Zeinalova, A. B.; Azizov, N. D.

doi:10.1016/j.jct.2005.04.017

Cited by 25 publications

(9 citation statements)

References 38 publications

(76 reference statements)

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“…The details of the experimental method, the description of the apparatus, and the procedures used for the viscosity measurements of NaI(aq) solutions are given in several previous publications. − Only a brief review will be given here. The measurements were made using a capillary-flow method.…”

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

“…The present results considerably expand the temperature, pressure, and concentration ranges in which viscosity for aqueous NaI(aq) are available. This work is a part of a continuing program [34][35][36][37][38][39][40][41][42][43][44][45][46][47] on the transport (thermal conductivity and viscosity) properties of electrolytes in aqueous solutions at high temperatures and high pressures.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the primary objective of this work was to expand the existing viscosity database to higher temperatures, pressures, and concentrations. The main objective of the paper is to provide new, accurate experimental viscosity data for binary NaI(aq) solutions at high temperatures (up to 575 K) and high pressures (up to 30 MPa) for compositions up to 4.7 mol·kg -1 using a capillary-flow technique, which has been previously used for accurate measurements on other aqueous electrolyte solutions at high temperatures and high pressures. − The available experimental viscosity data for NaI(aq) have been comprehensively analyzed to estimate the reliability and consistency of the published data sets. The present results considerably expand the temperature, pressure, and concentration ranges in which viscosity for aqueous NaI(aq) are available.…”

Section: Introductionmentioning

confidence: 99%

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Viscosity of Aqueous Electrolyte Solutions at High Temperatures and High Pressures. Viscosity B-coefficient. Sodium Iodide

2006

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The viscosity of seven (0.062, 0.166, 0.456, 0.552, 1.754, 3.062, and 4.700) mol‚kg -1 binary aqueous NaI solutions has been measured with a capillary-flow technique. Measurements were performed at pressures up to 30 MPa. The range of temperature was from (298 to 575) K. The total uncertainty of viscosity, pressure, temperature, and composition measurements was estimated to be less than 1.6 %, 0.05 %, 15 mK, and 0.015 %, respectively. The effect of temperature, pressure, and concentration on viscosity of binary aqueous NaI solutions was studied. The measured values of the viscosity of NaI(aq) were compared with data, predictions, and correlations reported in the literature. The viscosity data have been analyzed and interpreted in terms of the extended Jones-Dole equation for the relative viscosity (η/η 0 ) of strong electrolyte solutions to accurately calculate the values of the viscosity A-and B-coefficients as a function of temperature. The derived values of the viscosity A-and B-coefficients were compared with the values calculated from the Falkenhagen-Dole theory and ionic B-coefficient data, respectively. The physical meaning parameters V and E in the Eyring's absolute rate theory of viscosity, the hydrodynamic molar volume V k (effective rigid molar volume of salt) in the extended Einstein relation for the relative viscosity, and the Arrhenius-Andrade parameters A and b ) E a /R (where E a is the flow activation energy) were calculated using the present experimental viscosity data. The effective pressures P e due to the salt (NaI) in water were calculated from the present viscosity measurements by using the TTG model. The predictive capability of the various models for viscosity electrolyte solutions has been tested.

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Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Viscosity of Aqueous Electrolyte Solutions at High Temperatures and High Pressures. Viscosity B-coefficient. Sodium Iodide

2006

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“…Jones & Talley (1933), Kaminsky (1955, 1956, 1957), Feakins & Lawrence (1966), Desnoyers et al. (1969), Robertson & Tyrrell (1969), Desnoyers & Perron (1972), Abdulagatov & Azizov (2005a,b), Abdulagatov et al. (2005b,c), Abdulagatov et al.…”

Section: Resultsmentioning

confidence: 99%

Viscosity of tangerine and lemon juices as a function of temperature and concentration

Magerramov

Абдулагатов

Abdulagatov

et al. 2007

Int J of Food Sci Tech

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Viscosities of two fruit (lemon and tangerine) juices have been measured with a capillary flow technique. Measurements were made in the temperature range from 303 to 393 K. The range of concentration was between 15 and 40°Brix for tangerine juice and between 17 and 45°Brix for the lemon juice. The total uncertainty of viscosity and temperature measurements was estimated to be <0.5% at low concentrations and up to 1.5% at high concentrations and 0.025 K, respectively. The effect of temperature and concentration on viscosity of tangerine and lemon juices was study. The measured values of the viscosity were used to calculate the temperature, ( ¶ ln g/ ¶T) x , and concentration, ( ¶ ln g/ ¶x) T , coefficients for each juice. The Arrhenius type correlation equations for viscosity were used to represent the temperature dependence of viscosity. The values of the Arrhenius equation parameters (flow activation energy, E a , and g ¥ ) were calculated for the measured viscosities of tangerine and lemon juices as a function of concentration. Different theoretical models for the viscosity of fruit juices were stringently tested with new accurate measurements on tangerine and lemon juices. The predictive capability of the various models was studied. The concentration and temperature dependence behavior of the viscosity of tangerine and lemon juices are discussed in light of the various theoretical models for viscosity of fruit juices. The applicability and predictive capability of the models used previously for aqueous solutions to represent the effect of temperature and concentration on viscosity of fruit juices was also studied. New model was developed to represent the combined effect of temperature and concentration on the viscosity of the juices. The average absolute deviation between measured and calculated values from this correlation equation for the viscosity was 0.8% and 2.1% for tangerine and lemon juices, respectively.

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“…In this equation the empirical parameters A, B and D have physical significance. [57,58] A is the interionic coefficient, B is the solutesolvent interaction coefficient, and the D term includes structural interactions that were not accounted for by the A p C and BC terms i. e., the long-range forces at high concentrations. [57] The D term is sensitive to temperature fluctuations.…”

Section: Electrolytementioning

confidence: 99%

Role of FTFSI Anion Asymmetry on Physical Properties of AFTFSI (A=Li, Na and K) Based Electrolytes and Consequences on Supercapacitor Application

2021

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This study compares the physicochemical properties of six electrolytes comprising of three salts: LiFTFSI, NaFTFSI and KFTFSI in two solvent mixtures, the binary (3EC/7EMC) and the ternary (EC/PC/3DMC). The transport properties (conductivity, viscosity) as a function of temperature and concentration were modeled using the extended Jones-Dole-Kaminsky equation, the Arrhenius model, and the Eyring theory of transition state for activated complexes. Results are discussed in terms of ionicity, solvation shell, and cross-interactions between electrolyte components. The application of the six formulated electro-lytes in symmetrical activated carbon (AC)//AC supercapacitors (SCs) was characterized by cyclic voltammetry (CV), galvanostatic cycling with potential limitation (GCPL), electrochemical impedance spectroscopy (EIS) and accelerated aging. Results revealed that the geometrical flexibility of the FTFSI anion allows it to access and diffuse easily in AC whereas its counter ions (Li + , Na + or K + ) can remain trapped in porosity. However, this drawback was partially resolved by mixing LiFTFSI and KFTFSI salts in the electrolyte.

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Viscosity of aqueous Ni(NO3)2 solutions at temperatures from (297 to 475) K and at pressures up to 30 MPa and concentration between (0.050 and 2.246) mol·kg−1

Cited by 25 publications

References 38 publications

Viscosity of Aqueous Electrolyte Solutions at High Temperatures and High Pressures. Viscosity B-coefficient. Sodium Iodide

Viscosity of Aqueous Electrolyte Solutions at High Temperatures and High Pressures. Viscosity B-coefficient. Sodium Iodide

Viscosity of tangerine and lemon juices as a function of temperature and concentration

Role of FTFSI Anion Asymmetry on Physical Properties of AFTFSI (A=Li, Na and K) Based Electrolytes and Consequences on Supercapacitor Application

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