Mixture Of Ethylenediamine Research Articles

One-step solution processing of printable Sb2S3 nano-rods for high-performance photoconductors

Abstract Achieving large-scale, affordable, and highly dependable production of antimony sulfide is crucial for unlocking its potential in various applications, including photoconductors, solid-state batteries, thermoelectrics, and solar cells. In our study, we introduce a straightforward, economical, and catalyst-free single-step solution process for fabricating one-dimensional Sb2S3 nanostructures on flexible polyimide substrates, and we explore their use as photoconductors in the ultraviolet (UV) and visible light spectrum. The precursor solution for creating the Sb2S3 films is prepared by dissolving specified quantities of elemental Sb and S in a solution mixture of ethylenediamine and 2-mercaptoethanol. This solution is then spin-coated onto a polyimide substrate and subsequently annealed at 300 °C for several minutes. Utilizing field emission scanning electron microscopy, grazing incidence x-ray diffraction, Raman spectroscopy, and transmission electron microscopy, we demonstrate that the Sb2S3 films possess high crystallinity, uniform morphology, and a composition that is nearly stoichiometric. Additionally, through Tauc plot analysis, we determine that the films exhibit a direct bandgap of approximately 1.67 eV, which is in close agreement with the bandgap predicted by Heyd–Scuseria–Ernzerhof (HSE06) density-functional theory simulations. The metal-semiconductor–metal photoconductors fabricated with these films display a significant photoresponse to both UV and visible light. These devices achieve a UV on/off ratio of up to 160 at a light intensity of 30 mW cm−2, with brief rise and fall times of 44 ms and 28 ms, respectively.

Stacked ZnS multilayers of ZnS(en)0.5 hybrids with enhancing photocatalytic performance for H2 production

Zinc sulfide hybrids with different stacked ZnS multilayers were prepared using a chemical precipitation method in a solvent mixture of Ethylenediamine:Water:Butanol via two routes - nitrate and acetate salt precursors. The impact of butanol solvent contents (30 and 60 vol%) on the formation of orthorhombic-ZnS(en)0.5 hybrid with different stacking of ZnS layers was comprehensively analyzed using X-ray diffraction, Fourier Transform Infrared, X-ray photoelectron spectroscopy, and diffuse reflectance spectroscopy. Scanning electron microscopy was employed to study the influence of the mixture solvent on particle size and morphology of the resulting ZnS(en)0.5 hybrid micro flakes or nanosheets. The photocatalytic response was evaluated through hydrogen production reactions using low photocatalyst load under UV light irradiation, conducted over four reaction cycles. A significant increase in hydrogen production rate (4.6 and 4.0 times more active) was achieved for the exfoliated ultrathin nanosheet ZnS(en)0.5 hybrid prepared with lower butanol contents from the nitrate and acetate route, respectively. This enhancement was attributed to the reduced size of the nanosheets of stacked ZnS multilayers, which resulted from the incorporation of 30 vol% of butanol during the synthesis. Overall, the findings indicate that the Ethylenediamine:Butanol solvent system plays a crucial role in tuning the degree of ZnS stacking layers, the particle size, and morphology of ZnS(en)0.5 hybrids, leading to improved photocatalytic performance in hydrogen production reactions.

Thermodynamic modeling of binary mixtures of ethylenediamine with water, methanol, ethanol, and 2-propanol by association theory.

Association theories by statistical associating fluid theory (SAFT) and cubic plus association (CPA) equation of states (EoS) have effectively handled various thermodynamic purposes thus far; they consider hydrogen bonding effects in associating compounds (those with hydrogen bonds such as water and alcohols) in a proper way. The objective of this work is to thermodynamically undertake the study of ethylenediamine (EDA)-water, EDA-methanol, EDA-ethanol, and EDA-2-propanol binary mixtures in a manner to be useful for designing separation processes by CPA EoS. Accordingly, CPA EoS was applied to model vapor-liquid equilibrium (VLE) of several practical binary mixtures including EDA-water, EDA-methanol, EDA-ethanol, and EDA-2-propanol. It should be noted that the aforementioned mixtures are being studied by CPA EoS for the first time and necessary details are presented; two different association schemes (different situations for creating hydrogen bonds), 2B and 4C schemes, were considered for EDA. Water and studied alcohols were also modeled by 4C and 2B schemes, respectively. Moreover, the capability of two different combining rules (Elliot and CR-1) was evaluated. The azeotrope point available in the phase diagram of EDA-water system was correctly identified by CPA EoS. Furthermore, the liquid phase density of EDA-water was satisfactorily predicted by CPA EoS. It has also a high level of accuracy in VLE modeling of EDA-methanol, EDA-ethanol, and EDA-2-propanol mixtures. In the end, according to all provided results, it can be said that CPA EoS along with all required parameters obtained in this study is capable of describing thermodynamic behavior of studied mixtures.

Tin Sulfide/Gallium Oxide Heterojunctions for Solar Water Splitting

Tin (II) sulfide (SnS) is a promising semiconductor material for next‐generation solar energy conversion due to its favorable bandgap, elemental abundance, low toxicity, and low cost. A major challenge, however, lie in the low open circuit voltages that are typically obtained in SnS‐based devices. Herein, a low‐cost solution‐phase deposition technique is used to prepare SnS thin films and investigate different junction materials (Ga2O3 and In2S3) to improve the photovoltage in SnS‐based water splitting photocathodes. Molecular inks are prepared by dissolving SnS powder in solvent mixtures of ethylenediamine and 1,2‐ethanedithiol. SnS thin films are then successfully deposited by spin coating the inks onto substrates, followed by a heat treatment at 350°C in an inert atmosphere. With a photoelectrode based on a SnS/Ga2O3 heterojunction, an onset potential of +0.25 V versus reversible hydrogen electrode (RHE) is achieved for photoelectrochemical hydrogen evolution in pH 7 phosphate buffer, which is until now the earliest onset potential (highest photovoltage) among nontoxic replacements to CdS junctions in SnS‐based water splitting systems.

Active nickel hollow nanosphere supported over SiO2 catalyst for reduction of nitro compound

Nickel hollow nanospheres (Ni HNSs) was prepared by solvothermal method using mixture of ethylenediamine (EN) and ethanol (ET), sodium borohydride as reducing agent and nickel chloride hexahydrate as precursor. The particle size of the Ni HNSs were tuned by varying several parameters including precursor concentrations, reaction temperatures (130–190 °C), and ET to EN volume ratios. The particle size and morphology of Ni HNSs were confirmed by dynamic light scattering and transmission electron microscope, respectively. Spherical shape of Ni nanoparticles of 300 nm size having ∼200 nm hollow space and 50 nm thickness was achieved at optimize condition of 4:6 volume ratio of ET/EN, 150 °C temperature, 0.1 M NaBH4 concentration, and 7 h. Ni HNSs supported over SiO2 (Ni HNSs/SiO2) with different loading of Ni HNSs (1–10 wt.%) were prepared by impregnation method. The catalyst was characterized by X-ray diffraction, and inductively coupled plasma - optical emission spectroscopy. The catalytic performance of Ni HNSs/SiO2 was carried out in the reduction of 4-Nitrophenol (4-NP) to 4 – Aminophenol (4-AP). 5 wt.% Ni HNSs/SiO2 exhibited 87% reduction of 4-NP in 25 min and stable up to 6 catalyst cycles due to higher surface area of the catalyst.

An Electrochemically Mediated Amine Regeneration Process with a Mixed Absorbent for Postcombustion CO2 Capture.

Electrochemically mediated amine regeneration (EMAR) was recently developed to avoid the use of thermal means to release CO2 captured from postcombustion flue gas in the benchmark amine process. To address concerns related to the high vapor pressure of ethylenediamine (EDA) as the primary amine used in EMAR, a mixture of EDA and aminoethylethanolamine (AEEA) was investigated. The properties of the mixed amine systems, including the absorption rates, electrolyte pH and conductivity, and CO2 capacity, were evaluated in comparison with those of solely EDA. The mixed amine system had similar properties to that of EDA, indicating no significant changes would be necessary for the future implementation of the EMAR process with mixed amines as opposed to that with just EDA. The electrochemical performance of the mixed amines in terms of the cell voltage, gas desorption rate, electron utilization, and energetics was also investigated. A 50/50 mixture of EDA and AEEA displayed the lowest energetics: ∼10% lower than that of 100% EDA. With this mixture, a continuous EMAR process, in which the absorption column was connected to the electrochemical cell as the desorption stage, was tested over 100 h. The cell voltage was very stable and there was a steady gas output close to theoretical values. The desorbed gas was further analyzed and found to be 100% CO2, confirming no evaporation of the amine. The mixed absorbent composition was also characterized using titration and nuclear magnetic resonance (NMR) spectroscopy, and the results showed no amine degradation. These findings that demonstrate a stable, low vapor pressure absorbent with improved energetics are promising and could be a guideline for the future development of EMAR for CO2 capture from flue gas and other sources.

Morphology engineering and growth mechanism of ZnS nanostructures synthesized by solvothermal process

Zinc sulfide (ZnS) nanostructures with various morphologies play an imperative role in optoelectronic applications. In this study, different ZnS nanostructures with well-defined morphologies were synthesized in a controlled manner by a low-temperature solvothermal method using the binary solvent mixtures of ethylenediamine and water (EN/W). Controlling the content of EN and the growth temperature, ZnS nanostructures including nanoflowers, nanoflakes, nanorods, and hexagonal nanoplates were produced at a very low temperature ranging from 100 °C to 180 °C during short reaction times of 2 h and 6 h with excellent reproducibility. X-ray diffraction patterns of the nanostructures considerably revealed the single crystalline nature with a pure wurtzite phase of ZnS even at the low growth temperature having the average crystallite size in the range of 12.8–25.0 nm. The morphology evolution of the samples showed that there is a strong correlation between the morphologies of the ZnS nanostructures and the variations of both the growth temperature and reaction solvent. Based on the experimental results, a growth mechanism was also proposed for all the ZnS nanostructures with different morphologies. A sharp absorption band-edge was found for the ZnS nanostructures, in which the optical bandgap energy was laid ranging from 3.97 eV to 4.09 eV due to the quantum confinement effect. All the samples featured a broad asymmetrical photoluminescence emission with multiple peaks, corresponding to excitonic and trapped luminescence centers. The effect of morphology on the optoelectronic performance resulted in a tremendous photoresponsivity and an excellent time-response switching behavior in UV region.

3-D Topo Surface Visualization of Metal Ion Anti-buffering: An Unexpected Behavior in Metal–Ligand Complexation Systems

Diluting a system with metal complexes can sometimes cause free metal ions to increase in concentration. This paper describes “metal ion anti-buffering”, a situation in which free metal ion concentrations rapidly increase as system dilution drives dissociation. It only occurs under excess free ligand conditions when a solution is dominated by higher stoichiometry complexes. The Law of Mass Action is used to provide a mathematical justification for the phenomenon. A Cu2+-ethylenediamine mixture exhibits this phenomenon when excess free ethylenediamine (en) is present. For example, it occurs when diluting a solution containing a 4-fold excess of en over Cu2+. As this mixture is diluted by a factor of ∼5600, the modeled free Cu2+ concentration shows a ∼ 470-fold increase. Taken together, this is 2.5 million times higher than dilution of the system would yield in other circumstances. Included are experimental data confirming anti-buffering in the Cu2+-en system. Many other metal–ligand systems can display thi...

Millimeter-Size Spherical Polyurea Aerogel Beads with Narrow Size Distribution.

We report the room temperature synthesis of spherical millimeter-size polyurea (PUA) aerogel beads. Wet-gels of said beads were obtained by dripping a propylene carbonate solution of an aliphatic triisocyanate based on isocyanurate nodes into a mixture of ethylenediamine and heavy mineral oil. Drying the resulting wet spherical gels with supercritical fluid (SCF) CO2 afforded spherical aerogel beads with a mean diameter of 2.7 mm, and a narrow size distribution (full width at half maximum: 0.4 mm). Spherical PUA aerogel beads had low density (0.166 ± 0.001 g cm–3), high porosity (87% v/v) and high surface area (197 m2 g–1). IR, 1H magic angle spinning (MAS) and 13C cross-polarization magic angle spinning (CPMAS) NMR showed the characteristic peaks of urea and the isocyanurate ring. Scanning electron microscopy (SEM) showed the presence of a thin, yet porous skin on the surface of the beads with a different (denser) morphology than their interior. The synthetic method shown here is simple, cost-efficient and suitable for large-scale production of PUA aerogel beads.

Density, Viscosity, and Glass Transition of an Ethylenediamine–Ethylene Glycol Binary System

Densities ρ and viscosities η were measured for the binary mixtures of ethylenediamine (EDA) and ethylene glycol (EG) in the temperature range 288.15–323.15 K for ρ and at 273.15–323.15 K for η, both of which are broader temperature ranges than those reported previously. The value of ρ monotonously decreases against the mole fraction of EDA, x EDA, and increasing temperature. The concentration dependence of η exhibits a maximum in the intermediate concentration range at all temperatures measured. The glass transition temperature, T g, for samples with x EDA < 0.7 was measured using differential scanning calorimetry. The measured T g values show a peak in the intermediate concentration range, which is a behavior similar to that of η; however, the peak concentrations for η and T g did not precisely align because of a deviation in the maximum hydrogen-bond density. The partial molar volumes for EDA and EG and the thermal expansivities, α, were obtained from ρ. Results in the present study are discussed in terms of the extensively increasing hydrogen-bond density for polyamine–polyhydric alcohol systems.

Effect of high pressure and temperature on volumetric properties of {water (1) + ethylenediamine (2)} mixtures

For {water (1)+ethylenediamine (2)} binary mixture the densities at atmospheric pressure and compressions, k=ΔV/Vo, at pressures from 10 to 100MPa of have been measured over the whole concentration range and temperatures from 278.15 to 323.15K. The molar isothermal compressions and molar isobaric expansions, the thermal pressure coefficients and the internal pressure of water+ethylenediamine mixture have been calculated at all state parameters examined. It was shown that the values of molar isothermal compression and molar isobaric expansion of the mixtures rich in water varied insignificantly whereas the thermal pressure coefficients changed strongly within that concentration range. The magnitude of the extreme on the concentration dependence of the thermal pressure coefficient was unusually large that was probably connected with the influence of 2H2O-EDA hydrate complex.

Solution processing of chalcogenide materials using thiol-amine "alkahest" solvent systems.

Macroelectronics is a major focus in electronics research and is driven by large area applications such as flat panel displays and thin film solar cells. Innovations for these technologies, such as flexible substrates and mass production, will require efficient and affordable semiconductor processing. Low-temperature solution processing offers mild deposition methods, inexpensive processing equipment, and the possibility of high-throughput processing. In recent years, the discovery that binary "alkahest" mixtures of ethylenediamine and short chain thiols possess the ability to dissolve bulk inorganic materials to yield molecular inks has lead to the wide study of such systems and the straightforward recovery of phase pure crystalline chalcogenide thin films upon solution processing and mild annealing of the inks. In this review, we recount the work that has been done toward elucidating the scope of this method for the solution processing of inorganic materials for use in applications such as photovoltaic devices, electrocatalysts, photodetectors, thermoelectrics, and nanocrystal ligand exchange. We also take stock of the wide range of bulk materials that can be used as soluble precursors, and discuss the work that has been done to reveal the nature of the dissolved species. This method has provided a vast toolbox of over 65 bulk precursors, which can be utilized to develop new routes to functional chalcogenide materials. Future studies in this area should work toward a better understanding of the mechanisms involved in the dissolution and recovery of bulk materials, as well as broadening the scope of soluble precursors and recoverable functional materials for innovative applications.

Fe2O3/SiO2 nanowires formed by hydrothermally transforming SiO2 spheres in the presence of Fe3+: Synthesis, characterization, and catalytic properties

Xie et al. reported that Fe2O3/SiO2 spheres with a surface area of 111m2/g could be hydrothermally transformed into Fe2O3/Silicalite-1 nanowires in the presence of ethylenediamine and triethylamine. The resulting material was found to be active for CO oxidation and N2O decomposition due to the presence of small (1–2nm) Fe2O3 nanoparticles [P.F. Xie et al., Microporous Mesoporous Mater. 200 (2014) 52–60; P.F. Xie et al., J. Mol. Catal. A 409 (2015) 50–58]. In the current work, commercial amorphous SiO2 spheres with a low specific surface area of 9.5m2/g were found to be transformed into amorphous SiO2 nanowires via hydrothermal treatment at 200°C, in the presence of a mixture of ethylenediamine, triethylamine, and Fe(NO3)3, for several days. The Fe3+ species, in the presence of ethylenediamine and triethylamine, not only catalyzed the morphological transformation of SiO2, but also got deposited onto the SiO2 nanowires, forming supported Fe2O3 nanoparticles (2–4nm in diameter) upon subsequent calcination to remove the organic templates. For comparison, Fe2O3/SiO2 spheres prepared by impregnation had big Fe2O3 particles (as large as 50nm). Both the SiO2 supports and supported Fe2O3 particles were characterized by various techniques. The catalytic performance was studied, using N2O decomposition, CO oxidation, and photocatalytic reduction of Cr(VI) as probe reactions. Implications of the findings are discussed.

Preparation and Hydrolysis of Water-Stable Amorphous Cellulose

The facile preparation, aqueous stability, and hydrolysis characteristics of amorphous cellulose regenerated from cellulose solutions using amine/inorganic salt solvents was investigated. Highly crystalline cellulose was dissolved in a mixture of ethylenediamine and NaSCN, KSCN, or NaI at room temperature; subsequent addition of an excess of alcohol, acetone, or acetonitrile immediately precipitated the bulk cellulose in a completely amorphous state. Only a small amount of the amorphous cellulose crystallized during one month in 50 °C water, as revealed by X-ray diffraction and cross-polarization magic angle spinning solid state 13C NMR analyses. The susceptibility of the amorphous cellulose to acid and enzymatic hydrolysis was remarkably enhanced compared with the original highly crystalline cellulose. This simple method for preparing the specific amorphous cellulose, coupled with the high susceptibility of the product cellulose to hydrolysis, suggests that this is a useful process for the production of ...

Hydrothermal conversion of Fe2O3/SiO2 spheres into Fe2O3/Silicalite-1 nanowires: Synthesis, characterization, and catalytic properties

Fe2O3 nanoparticles were dispersed onto SiO2 by impregnating amorphous SiO2 spheres with Fe(NO3)3 followed by spray drying and calcination. Interestingly, the amorphous SiO2 spheres in the sample could be converted into Silicalite-1 nanowires after being hydrothermally treated in the presence of a mixture of ethylenediamine and triethylamine (dual templates) for over 4days, whereas the Fe2O3 nanoparticles were still highly dispersed on the formed Silicalite-1 nanowires. Meanwhile, a fraction of Fe(III) species entered the zeolitic framework. Relevant characterization was conducted using X-ray fluorescence (XRF), N2 adsorption–desorption, X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), ultraviolet–visible (UV–Vis) spectroscopy, electron paramagnetic resonance (ESR), X-ray photoelectron spectroscopy (XPS), and H2-temperature-programmed reduction (H2-TPR). The catalytic properties of the samples were studied using CO oxidation, N2O decomposition, and selective reduction of NO as probe reactions.

Solvothermal Preparation and Effects of Mixed Solvent on the Properties of Copper Indium Diselenide Nanoalloys

AbstractWe have developed a simple solvothermal method by using solvent mixtures of ethylenediamine with ethanol and deionized water to produce the CuInSe2 nanoalloys. The phase structure, morphology, elemental composition and optical band gap (Eg) of synthesized the CuInSe2 nanoalloys were characterized by Raman spectroscopy, X‐ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X‐ray spectroscopy (EDS) and zeta potential particle sizer measurements. The factors affecting product purity in the mixed solvent are also discussed. The results showed that CuInSe2 nanoalloys with a chalcopyrite tetragonal structure were produced by adjusting the ratio of ethylenediamine to ethanol (1:2.33 by volume) and their corresponding energy band gap was found to be 1.27 eV. In addition, we prepared and coated the CuInSe2 ink on the Mo substrate by the doctor blade method to produce a compact thin film. The crystallinity and the morphology of these polycrystalline CuInSe2 films were characterized.

Large-scale urchin-like micro/nano-structured NiS: controlled synthesis, cation exchange and lithium-ion battery applications

Large-scale uniform urchin-like nickel sulfide (NiS) was successfully synthesized by a solvothermal method under moderate conditions. A mixture of ethylenediamine and ethylene glycol was used as solvent. A complex obtained using a simple method was used as a precursor. Based on the results for nickel sulfide (NiS), multiple sulfides were synthesized by a method based on morphology and replication. Outstanding features were obtained such as composition regulation, i.e., the main physical properties of the product can be adjusted under mild conditions without changing the morphology. Multiple sulfides were synthesized through ion-exchange reaction to achieve morphology transfer. The products were assembled as cathode materials for lithium-ion batteries to test discharge/charge performance. The first discharge/charge performance ranged from 314.8 to 597.3 mAh g−1. This result indicated that the composition and performance of the materials can be regulated by changing the central metal ion without changing the morphology.

Studies of thermophysical properties of binary liquid mixtures of amine and alcohols at various temperatures

The density ρ and speed of sound u of the binary mixtures of ethylenediamine (EDA) with alcohols (1-hexanol, 1-octanol, and 1-decanol) were measured at temperatures from (293.15 to 313.15)K and viscosity η at (298.15 to 308.15)K over the entire composition range and at atmospheric pressure. Using the experimental values of density, viscosity and speed of sound, the excess molar volume VmE, viscosity deviation Δη, deviation in speed of sound uD, deviation in isentropic compressibility Δκs were calculated. These results were fitted to the Redlich–Kister type polynomial equation. The variations of these excess parameters with composition were discussed from the viewpoint of intermolecular interactions in these mixtures. The excess properties are found to be either positive or negative depending on the molecular interactions and the nature of liquid mixtures. Further, the viscosity data have been used and analyzed in terms of Heric−Brewer and McAllister models.

PH- and Concentration-Programmable Electrodialytic Buffer Generator

We have presented in a companion paper a suppressor-based electrodialytic buffer generator (EBG) that can produce programmable pH gradients. Here we demonstrate a three-electrode EBG. In this three-compartment flow-through device, the central compartment is separated from the outer compartments with a cation-exchange membrane (CEM) and an anion-exchange membrane (AEM), respectively. One platinum electrode is disposed in each compartment. The flows through each compartment are independent. With appropriate solutions in each compartment, independent potentials are applied to the CEM and AEM electrodes with respect to the grounded central electrode. The CEM current and the AEM current can be independently manipulated to generate buffers with variable concentration and pH in the central compartment. Both the CEM and AEM currents can be positive or negative. For the CEM, a positive current (i(cat)(in)) indicates that cations are coming in from the CEM channel to the center. A negative current (i(cat)(out)) takes cations out of the center to the CEM channel. Similarly for the AEM, currents governing anion transport into the center channel from the AEM channel (AEM electrode negative) or the reverse (AEM electrode positive) are respectively denoted by i(an)(in) or i(an)(out). Most examples herein involve inward ion transport, referred to as the additive mode. Depending on whether i(cat)(in) <i(an)(in) or i(cat)(in) > i(an)(in), H(+)/O(2) and OH(-)/H(2) are respectively produced at the central electrode to maintain electroneutrality. Any gas formed is subsequently removed by a gas removal device. The pH of the central channel effluent is related to the ratio of the currents through the two membranes, while the generated concentration is controlled by the absolute value of the currents. The buffer concentration and pH can be varied in a controlled predictable manner. A pH span of 3-12 was attained and a phosphate buffer concentration up to 140 mM was generated. We demonstrate a variety of combined pH/concentration gradients from a mixture of ethylenediamine, citrate, and phosphate by manipulating i(cat)(in), which controls introduction of the ethylenediammonium ion, and i(an)(in), which controls the introduction of citrate and phosphate ions. We also demonstrate an additive-subtractive mode of operation where both inward and outward currents are used to add one type of ion while removing another type of ion to reproducibly generate pH/concentration gradients.

Densities, Viscosities, and Speeds of Sound of Binary Liquid Mixtures of Ethylenediamine with Alcohols at T = (293.15 to 313.15) K

Densities, ρ, and speeds of sound, u, have been measured for the binary liquid mixtures of ethylenediamine, (NH2CH2CH2NH2), with 2-methyl-1-propanol, (C4H10O), 2-propanol, (C3H8O), and 1-butanol, (C4H10O), at (293.15, 298.15, 303.15, 308.15, and 313.15) K and viscosities at (298.15, 303.15, and 308.15) K and a pressure of 0.1 MPa as a function of composition. Furthermore, using the experimental results excess molar volumes, VmE, isentropic compressibilities, κS, deviation in isentropic compressibilities, ΔκS, deviation in speeds of sound, Δu, and viscosity deviations, Δη, have been calculated. The values of VmE, ΔκS, Δu, and Δη were fitted to the Redlich–Kister polynomial equation and have been used to discuss the presence of significant interactions between amine and alcohol molecules. The viscosity data have been further used and analyzed in terms of some semiempirical equations.