Conductance of Sodium Nitrate in Methanol –Water Mixtures at Different Temperatures

Bhattarai, Ajaya; Sapkota, Deepak; Subedi, Netra P; Khanal, Manoj; Niraula, Tulsi P

doi:10.3126/njst.v12i0.6498

Cited by 6 publications

(4 citation statements)

References 12 publications

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“…The relative permittivity of the medium decreased at a given temperature with increasing in the ethanol content and this trend has also been seen in the conductivity study [18,19,20,21,22] of methanol content in water. The conductance decreases with increase of alcohol content for the studied ethanol-water mixed solvent system.…”

Section: Resultsmentioning

confidence: 51%

Effects of concentration and solvent composition on the electrical conductivity of sodium bromide in pure water and ethanol-water mixed solvent media

Bhattarai

Neupane

2013

Kathmandu University J of Sci, Engineering & Technol

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Precise measurements on the conductivity of Sodium Bromide in pure water and ethanol-water mixed solvent media containing 0.10, 0.20, 0.30, 0.40, 0.50 and 0.60 volume fractions of ethanol at room temperature are reported. The concentrations were varied from ~ 0.010 to ~ 0.10 mol.L -1 . The results showed a sharp increase in the conductivity with increasing electrolyte concentration. The conductivity of electrolyte decreases with increase in the amount of ethanol.Keywords: mixed solvent media, conductivity, sodium bromide, ethanol INTRODUCTIONThe conductivity measurements provide important information on ion-ion and ion-solvent interactions [1]. Studies on electrolytic conductance in mixed solvents can provide useful information and sensitive indications of ion-solvent and ion-ion interactions and solvent structure. The effect of ion association on the conductance behavior of electrolytes has been a subject of extensive investigation. Although numerous conductance measurements have been reported in the literature, such studies in mixed solvents are relatively rare [2]. In recent, several studies have reported that the nature of the spherical ions, having a large variation in size in aqueous mixtures of the alcohols, has received considerable attention [3].

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Section: Resultsmentioning

confidence: 51%

Effects of concentration and solvent composition on the electrical conductivity of sodium bromide in pure water and ethanol-water mixed solvent media

Bhattarai

Neupane

2013

Kathmandu University J of Sci, Engineering & Technol

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“…Increasing DGM or DME proportion in the binary system reduces the dielectric constant of the mixture and facilitates the creation of ion-pairs in the solution phase. This means that in solvents of low dielectric constants, having diminutive ionizing influence on electrolytes, the electrostatic forces between oppositely charged ions would be substantial and conductance will have diminutive value (Bhattarai et al, 2011). However, solvents of high dielectric constants afford better conducting solutions.…”

Section: Conductivitymentioning

confidence: 99%

Jones-Dole Coefficients and Conductivity Studies on Electrolyte Solutions of Magnesium Borohydride in Mixtures of 1,2-Dimethoxyethane–Propylene Carbonate and 2-Methoxyethyl Ether–Propylene Carbonate

Obowu¹,

Ibezim-Ezeani²,

Abia³

2018

IJAST

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The study on the competing influences of ion-ion, ion-dipole and dipole-dipole interactions by the species in magnesium borohydride [Mg(BH4)2] organic electrolyte solutions is reported. The organic electrolyte solutions were formulated by dispersing Mg(BH4)2 salt concentrations of 0.01, 0.05, 0.10 and 0.50 M in mixed solvent systems of 1,2-dimethoxyethane (DME)-propylene carbonate (PC) and 2-methoxyethyl ether (DGM)-propylene carbonate (PC). The density, viscosity, conductivity and dielectric constant were determined at different system compositions. The measured viscosity data varied with concentration according to Jones-Dole equation, while the resolved coefficients revealed that DME-PC and DGM-PC mixtures acted as solvates in the Mg(BH4)2 organic electrolyte solutions. The A coefficient values for DME-PC and DGM-PC systems increased progressively with mole fractions over the entire range studied. The B coefficient values for the electrolyte systems were found to exhibit minimum value at 0.822 and 0.095 mole fractions of DME and DGM respectively. The experimental conductivities of the electrolyte solutions measured at temperatures of 298.15, 308.15, 318.15, 328.15 and 338.15K increased with increase in temperature from 0 -50 % vol. composition range; and thereafter, decreased for both DME-PC and DGM-PC systems. This suggests that the most preferred mix ratio of the studied systems is 50 % vol. of component (DME or DGM) for optimum battery performance.

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“…It may be due to the larger dielectric constant of the methanol-water mixtures and the smaller ion size. The transport properties have been investigated for a wide variety of electrolytes in methanol-water mixed solvent media in great details [10][11][12][13][14][15][16][17] . There are very few works on the transport properties of polyelectrolytes in methanolwater mixed solvent media, 18,19 whereas the transport properties of ionic surfactants in methanol-water mixed solvent media are relatively rare.…”

Section: Introductionmentioning

confidence: 99%

Conductance of Sodium dodecyl sulphate in Presence and in Absence of KCl and NaBr in Methanol-Water mixed solvent media at 308. 15 K

Niraula

Chatterjee

Bhattarai

2013

J. Nepal Chem. Soc.

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Correction: On 10/01/2014, the first author of this paper was changed from Tulsi Ram Niraula to Tulasi Prasad NiraulaPrecise measurements on conductivity of sodium dodecyl sulphate in presence and in absence of KCl and NaBr in methanol-water mixed solvent media containing 0.1, 0.2, 0.3, and 0.4 volume fractions of methanol at 308.15K are reported. The concentrations were varied from ~ 0.001 to ~ 0.05 mol-1. The results showed a sharp increase in conductivity with increase in concentration of sodium dodecyl sulphate. Also,the conductivity of sodium dodecyl sulphate increases with addition of salts. The conductivity of sodium dodecyl sulphate decreases with increase in amount of methanol. The conductance of sodium dodecyl sulphate is found more in presence of KCl than NaBr in methanol-water mixed solvent media containing 0.1, 0.2, 0.3, and 0.4 volume fractions of methanol. DOI: http://dx.doi.org/10.3126/jncs.v29i0.9230Journal of Nepal Chemical SocietyVol. 29, 2012Page: 5-10Uploaded date : 12/3/2013

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Conductance of Sodium Nitrate in Methanol –Water Mixtures at Different Temperatures

Abstract: Abstract. The results showed a sharp increase in the conductivity with increasing electrolyte concentration. Also, the conductivity of electrolyte increases with increase in temperature whereas the conductivity of electrolyte decreases with increase in the amount of methanol.

Cited by 6 publications

References 12 publications

Effects of concentration and solvent composition on the electrical conductivity of sodium bromide in pure water and ethanol-water mixed solvent media

Effects of concentration and solvent composition on the electrical conductivity of sodium bromide in pure water and ethanol-water mixed solvent media

Jones-Dole Coefficients and Conductivity Studies on Electrolyte Solutions of Magnesium Borohydride in Mixtures of 1,2-Dimethoxyethane–Propylene Carbonate and 2-Methoxyethyl Ether–Propylene Carbonate

Conductance of Sodium dodecyl sulphate in Presence and in Absence of KCl and NaBr in Methanol-Water mixed solvent media at 308. 15 K

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