Permittivity and density of the systems (monoglyme, diglyme, triglyme, or tetraglyme+n-heptane) at several temperatures

Riadigos, C.F.; Iglesias, R.; Rivas, M.A.; Iglesias, T.P.

doi:10.1016/j.jct.2010.09.008

Cited by 54 publications

(39 citation statements)

References 37 publications

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“…), l Ref, 46 m Ref, 47 n Ref, 48 o Ref 49 (densities and viscosities of monoglyme at 308.15 K and 318.15 K were also reported), p Ref, 50 q Ref, 51 r Ref 52 (this reference also reported dielectric constant of 7.62 as well as refractive index and molar refraction for triglyme), s Ref, 53 t Ref 54 , u Ref, 55 v density data for monoglyme and diglyme were reported at temperatures between 293.15 K and 353.15 K and up to 60 MPa, 56 w Ref, 57 x Ref, 58 y Ref 59 (density data at 288.18 and 308.15 K were also reported), z Ref, 60 aa Ref, 61 bb Ref 62 (densities and viscosities were reported for several glymes from 288.15 K to 343.15 K), cc Ref, 63 dd Ref, 64 ee Ref, 65 ff Ref, 66 gg Ref 67 (densities, kinematic viscosities and heat capacities were reported for several glymes including pentaethylene glycol dimethyl ether from 283.15 to 423.15 K), hh Ref 68 (data on density, isentropic compressibility and isothermal compressibility of triglyme and tetraglyme were reported at 293.15–353.15 K and 0.1–100 MPa), ii Ref, 69 jj Ref, 70 kk Ref, 71 ll Ref, 72 mm Ref (densities, refractive indexes, and boiling points of other 1,2-disubstituted ethylene glycol derivatives such as propyl glyme were also reported), 73 nn Ref, 74 …”

Section: Figmentioning

confidence: 85%

Glymes as versatile solvents for chemical reactions and processes: from the laboratory to industry

2014

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Glymes, also known as glycol diethers, are saturated non-cyclic polyethers containing no other functional groups. Most glymes are usually less volatile and less toxic than common laboratory organic solvents; in this context, they are more environmentally benign solvents. However, it is also important to point out that some glymes could cause long-term reproductive and developmental damages despite their low acute toxicities. Glymes have both hydrophilic and hydrophobic characters that common organic solvents are lack of. In addition, they are usually thermally and chemically stable, and can even form complexes with ions. Therefore, glymes are found in a broad range of laboratory applications including organic synthesis, electrochemistry, biocatalysis, materials, and Chemical Vapor Deposition (CVD), etc. In addition, glyme are used in numerous industrial applications, such as cleaning products, inks, adhesives and coatings, batteries and electronics, absorption refrigeration and heat pumps, as well as pharmaceutical formulations, etc. However, there is a lack of comprehensive and critical review on this attractive subject. This review aims to accomplish this task by providing an in-depth understanding of glymes’ physicochemical properties, toxicity and major applications.

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Section: Figmentioning

confidence: 85%

Glymes as versatile solvents for chemical reactions and processes: from the laboratory to industry

2014

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“…Zhang et al compared the performance of standard dioxolane/dimethoxyethane (DOL/DME)‐based electrolytes (with LiNO 3 as the cosalt) with DOL/TMU and found a better performance, particularly, in terms of capacity utilization . We chose to make use of TMU as the solvent due to its reported stability against sulfur and its dielectric constant of 23.06–23.60, which is higher compared with the glymes (7–8), and therefore, TMU should be able to dissolve more (poly)sulfides. The physicochemical characterization (electrochemical stability window [ESW], conductivity, and viscosity) of the TMU electrolyte is discussed in Section .…”

Section: Resultsmentioning

confidence: 99%

“…A temperature increase leads to an exponential decay in viscosity which is much stronger in case of the TMU electrolyte, hence being a likely reason for the more strongly increasing conductivity. Note that both solvents differ also strongly in their relative permittivity which is 7.40 for 2G and 23.06–23.60 for TMU. The density of the different electrolyte solutions is shown in Figure c.…”

Section: Resultsmentioning

confidence: 99%

A Sodium Polysulfide Battery with Liquid/Solid Electrolyte: Improving Sulfur Utilization Using P₂S₅ as Additive and Tetramethylurea as Catholyte Solvent

et al. 2020

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Herein, the proof of concept of a sodium polysulfide battery consisting of two electrode chambers being separated by a solid electrolyte is described. The concept is suited for dissolved polysulfide cathodes and has the advantage that both half reactions can be optimized separately. The formation of solid sulfide discharge products is identified as the major limiting factor for cell cycling. This issue can be alleviated by adding solid P2S5. Further improvement can be achieved by replacing diglyme (2G) as the cathode compartment solvent with tetramethylurea (TMU). Using TMU, the cell cycles with Coulombic efficiencies >99% and capacities of 800 mAh g−1 are maintained for at least 30 cycles. Viscosity, density, conductivity, and the electrochemical stability window values of the 2G‐ and TMU‐based electrolytes are compared. The latter shows higher viscosity (2.806 vs 1.603 mPa s), higher density (1.016 vs 0.996 g cc−1), and higher conductivity (4.27 vs 1.45 mS cm−1). The oxidative stability limit of the TMU electrolyte is 3.2 V versus Na+/Na, which is sufficient for polysulfide redox reactions. Vis spectroscopy is used to follow the electrode reaction. In case of TMU, the reaction is based on the redox activity of S3−• radicals (blue coloration of the catholyte solution).

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“…The relative permittivity for each mixture is described as a function of the ideal volume fraction of the alkane, /, and temperature, T, by the following double-polynomial expression [40]:…”

Section: Resultsmentioning

confidence: 99%

Study of the binary mixtures of {monoglyme+(hexane, cyclohexane, octane, dodecane)} by ECM-average and PFP models

Rivas

Buep

Iglesias

2015

The Journal of Chemical Thermodynamics

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Permittivity and density of the systems (monoglyme, diglyme, triglyme, or tetraglyme+n-heptane) at several temperatures

Cited by 54 publications

References 37 publications

Glymes as versatile solvents for chemical reactions and processes: from the laboratory to industry

Glymes as versatile solvents for chemical reactions and processes: from the laboratory to industry

A Sodium Polysulfide Battery with Liquid/Solid Electrolyte: Improving Sulfur Utilization Using P₂S₅ as Additive and Tetramethylurea as Catholyte Solvent

Study of the binary mixtures of {monoglyme+(hexane, cyclohexane, octane, dodecane)} by ECM-average and PFP models

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Permittivity and density of the systems (monoglyme, diglyme, triglyme, or tetraglyme+n-heptane) at several temperatures

Cited by 54 publications

References 37 publications

Glymes as versatile solvents for chemical reactions and processes: from the laboratory to industry

Glymes as versatile solvents for chemical reactions and processes: from the laboratory to industry

A Sodium Polysulfide Battery with Liquid/Solid Electrolyte: Improving Sulfur Utilization Using P2S5 as Additive and Tetramethylurea as Catholyte Solvent

Study of the binary mixtures of {monoglyme+(hexane, cyclohexane, octane, dodecane)} by ECM-average and PFP models

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A Sodium Polysulfide Battery with Liquid/Solid Electrolyte: Improving Sulfur Utilization Using P₂S₅ as Additive and Tetramethylurea as Catholyte Solvent