Category: 112-49-2

Rapid epoxy cure and transamination behavior in vinylogous urethane epoxy using glyme-metal ions was written by Shin, Jaeho;Yi, Mobeom;Kim, Hyunjoong. And the article was included in Koen Yoshishu – Nippon Setchaku Gakkai Nenji Taikai in 2021.Electric Literature of C8H18O4 This article mentions the following:

Here we fabricated three different types of ILs containing lithium or zinc ligand with glyme mol. The unique functions of ionic liquids to intervene oxirane and carbonyl oxygen made the metal-glyme mixture a potential latent cure accelerator in epoxy cure reaction and a catalyst of transamination reaction at the same time. In the experiment, the researchers used many compounds, for example, 2,5,8,11-Tetraoxadodecane (cas: 112-49-2Electric Literature of C8H18O4).

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. Ether is less polar than esters, alcohols or amines because of the oxygen atom that is unable to participate in hydrogen bonding due to the presence of bulky alkyl groups on both sides of the oxygen atom. But ether is more polar than alkenes. Electron-deficient reagents are also stabilized by ethers. For example, borane (BH3) is a useful reagent for making alcohols. Pure borane exists as its dimer, diborane (B2H6), a toxic gas that is inconvenient and hazardous to use. Borane forms stable complexes with ethers, however, and it is often supplied and used as its liquid complex with tetrahydrofuran (THF).Electric Literature of C8H18O4

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Chemoinformatics-Driven Design of New Physical Solvents for Selective CO₂ Absorption was written by Orlov, Alexey A.;Demenko, Daryna Yu.;Bignaud, Charles;Valtz, Alain;Marcou, Gilles;Horvath, Dragos;Coquelet, Christophe;Varnek, Alexandre;de Meyer, Frederick. And the article was included in Environmental Science & Technology in 2021.Electric Literature of C8H18O4 This article mentions the following:

The removal of CO₂ from gases is an important industrial process in the transition to a low-carbon economy. The use of selective phys. (co-)solvents is especially perspective in cases when the amount of CO₂ is large as it enables one to lower the energy requirements for solvent regeneration. However, only a few phys. solvents have found industrial application and the design of new ones can pave the way to more efficient gas treatment techniques. Exptl. screening of gas solubility is a labor-intensive process, and solubility modeling is a viable strategy to reduce the number of solvents subject to exptl. measurements. In this paper, a chemoinformatics-based modeling workflow was applied to build a predictive model for the solubility of CO₂ and four other industrially important gases (CO, CH₄, H₂, and N₂). A dataset containing solubilities of gases in 280 solvents was collected from literature sources and supplemented with the new data for six solvents measured in the present study. A modeling workflow based on the usage of several state-of-the-art machine learning algorithms was applied to establish quant. structure-solubility relationships. The best models were used to perform virtual screening of the industrially produced chems. It enabled the identification of compounds with high predicted CO₂ solubility and selectivity toward other gases. The prediction for one of the compounds, 4-methylmorpholine, was confirmed exptl. In the experiment, the researchers used many compounds, for example, 2,5,8,11-Tetraoxadodecane (cas: 112-49-2Electric Literature of C8H18O4).

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive. Ethers can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O閳ユ椊 or N閳ユ椊 bonds. The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds.Electric Literature of C8H18O4

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Isothermal Vapor-Liquid Equilibria of the Absorption Working Pairs (R1234ze(E) + NMP and R1234ze(E) + DMETrEG) at Temperatures from 293.15 to 353.15 K was written by Ye, Gongran;Fang, Yibo;Li, Yalun;Guo, Zhikai;Wang, Lin;Han, Xiaohong. And the article was included in Journal of Chemical & Engineering Data in 2021.Recommanded Product: 2,5,8,11-Tetraoxadodecane This article mentions the following:

The absorption refrigeration system (ARS) was important for energy saving, which can be driven by low-grade energy. In this work, the mixtures of trans-1,3,3,3-tetrafluoropropene (R1234ze(E)) + N-methyl-2-pyrrolidone (NMP) and R1234ze(E) + triethylene glycol di-Me ether (DMETrEG) were considered as the promising new working fluids for ARS. The vapor-liquid equilibrium (VLE) data of R1234ze(E) + DMETrEG and R1234ze(E) + NMP binary mixtures were measured using a liquid-recirculation apparatus from 293.15 to 353.15 K. The VLE data were correlated by the five-parameter non-random two-liquid activity coefficient model, and the correlated results showed a good agreement with the exptl. VLE data. The average absolute relative deviation and maximum absolute relative deviation of the pressure were 1.70 and 5.11% for R1234ze(E) + NMP and 1.30 and 3.22% for R1234ze(E) + DMETrEG, resp. The two binary mixtures exhibited pos. deviations from Raoult’s law. In the experiment, the researchers used many compounds, for example, 2,5,8,11-Tetraoxadodecane (cas: 112-49-2Recommanded Product: 2,5,8,11-Tetraoxadodecane).

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. Of all the functional groups, ethers are the least reactive ones. Ether bonds are quite stable towards bases, oxidizing agents and reducing agents. But on the other hand, ethers undergo cleavage by reaction with acids. Electron-deficient reagents are also stabilized by ethers. For example, borane (BH3) is a useful reagent for making alcohols. Pure borane exists as its dimer, diborane (B2H6), a toxic gas that is inconvenient and hazardous to use. Borane forms stable complexes with ethers, however, and it is often supplied and used as its liquid complex with tetrahydrofuran (THF).Recommanded Product: 2,5,8,11-Tetraoxadodecane

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Assessing the mixture effects in in vitro bioassays of chemicals occurring in small agricultural streams during rain events was written by Neale, Peta A.;Braun, Georg;Brack, Werner;Carmona, Eric;Gunold, Roman;Konig, Maria;Krauss, Martin;Liebmann, Liana;Liess, Matthias;Link, Moritz;Schafer, Ralf B.;Schlichting, Rita;Schreiner, Verena C.;Schulze, Tobias;Vormeier, Philipp;Weisner, Oliver;Escher, Beate I.. And the article was included in Environmental Science & Technology in 2020.Name: 2,5,8,11-Tetraoxadodecane This article mentions the following:

Rain events may impact the chem. pollution burden in rivers. Forty-four small streams in Germany were profiled during several rain events for the presence of 395 chems. and five types of mixture effects in in vitro bioassays (cytotoxicity; activation of the estrogen, aryl hydrocarbon, and peroxisome proliferator-activated receptors; and oxidative stress response). While these streams were selected to cover a wide range of agricultural impacts, in addition to the expected pesticides, wastewater-derived chems. and chems. typical for street runoff were detected. The unexpectedly high estrogenic effects in many samples indicated the impact by wastewater or overflow of combined sewer systems. The 128 water samples exhibited a high diversity of chem. and effect patterns, even for different rain events at the same site. The detected 290 chems. explained only a small fraction (<8%) of the measured effects. The exptl. effects of the designed mixtures of detected chems. that were expected to dominate the mixture effects of detected chems. were consistent with predictions for concentration addition within a factor of two for 94% of the mixtures Overall, the burden of chems. and effects was much higher than that previously detected in surface water during dry weather, with the effects often exceeding proposed effect-based trigger values. In the experiment, the researchers used many compounds, for example, 2,5,8,11-Tetraoxadodecane (cas: 112-49-2Name: 2,5,8,11-Tetraoxadodecane).

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. Ether is less polar than esters, alcohols or amines because of the oxygen atom that is unable to participate in hydrogen bonding due to the presence of bulky alkyl groups on both sides of the oxygen atom. But ether is more polar than alkenes. The unique properties of ethers (i.e., that they are strongly polar, with nonbonding electron pairs but no hydroxyl group) enhance the formation and use of many reagents. For example, Grignard reagents cannot form unless an ether is present to share its lone pair of electrons with the magnesium atom. Complexation of the magnesium atom stabilizes the Grignard reagent and helps to keep it in solution.Name: 2,5,8,11-Tetraoxadodecane

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Systematic assessment of working fluid mixtures for absorption refrigeration based on techno-economic, environmental, health and safety performance was written by Papadopoulos, Athanasios I.;Gkouletsos, Dimitris;Champilomatis, Vassilis;Giannakakis, Alexandros;Kousidis, Vergis;Hassan, Ibrahim;Seferlis, Panos. And the article was included in Energy Conversion and Management in 2020.Application In Synthesis of 2,5,8,11-Tetraoxadodecane This article mentions the following:

Absorption refrigeration is a promising technol. for the replacement of vapor compression systems. Few, conventional mixtures of organic components have been evaluated to date as working fluids using mainly operating performance indicators. The aim of this work is to evaluate 75 working fluid mixtures, including 18 novel options as candidates for single-effect absorption refrigeration processes. Multiple performance indicators are considered such as coefficient of performance, exergy efficiency, high cycle pressure, distillate-to-feed ratio and number of stages in the rectifier, mass flowrates, process economics and safety, health and environmental properties of fluids. The evaluation is performed within a systematic, stage-wise approach, which employs multi-criteria anal. It is observed that mixtures of acetaldehyde with DMF or methylpyrolidone exhibit up to 40% and 22% lower costs per ton of cooling compared to ammonia-water and water-lithium bromide. The same mixtures also outperform or match the coefficient of performance of ammonia-water. Propionaldehyde and Me formate with the same absorbents are also competitive options in smaller scale processes, while they exhibit better health, safety and environmental properties than acetaldehyde. The new mixtures are of equivalent or better safety, health and environmental performance than other well-known refrigerants. In the experiment, the researchers used many compounds, for example, 2,5,8,11-Tetraoxadodecane (cas: 112-49-2Application In Synthesis of 2,5,8,11-Tetraoxadodecane).

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. The oxygen atom in ethers are more electronegative than carbon, thus the hydrogens which are alpha to the ethers are more acidic than the simple hydrocarbons. Ethers can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O閳ユ椊 or N閳ユ椊 bonds. The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds.Application In Synthesis of 2,5,8,11-Tetraoxadodecane

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Viscosity of 2-ethylhexan-1-amine (EHA)-diglyme, EHA-triglyme and EHA-tetraglyme non-aqueous solutions and its effect on initial absorption rate was written by Fu, Kun;Zhang, Pan;Wang, Lemeng;Huang, Xiayu;Fu, Dong. And the article was included in Journal of Molecular Liquids in 2020.Product Details of 112-49-2 This article mentions the following:

The viscosities (鐣? of 2-ethylhexan-1-amine (EHA), diglyme, triglyme, tetraglyme and EHA-diglyme/triglyme/tetraglyme non-aqueous solutions were measured by using the NDJ-5S rotational viscometer at 101 kPa. The temperatures (T) ranged from 303.2 K to 323.2 K. The mass fractions of EHA (w_EHA) ranged from 0.100 to 0.900. The viscosity was modeled and the calculated results agreed well with the experiments The effects of w_EHA and T on viscosity were demonstrated on the basis of experiments and calculations The initial absorption rates of CO₂ (r) in EHA-diglyme/triglyme/tetraglyme non-aqueous solutions were measured, and the effects of viscosity, absorbent concentration and absorption rate constant of CO₂ (k) on initial absorption rates were demonstrated. Our research shows that in the temperature range of 303.2 K to 323.2 K, the proposed three non-aqueous absorbents have small solution viscosities (<3 mPa.s), which is beneficial to the mass transfer of CO₂ absorption and the initial absorption rate. Thus the proposed non-aqueous absorbents have good application potential in the field of CO₂ capture process. In the experiment, the researchers used many compounds, for example, 2,5,8,11-Tetraoxadodecane (cas: 112-49-2Product Details of 112-49-2).

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. Ether is less polar than esters, alcohols or amines because of the oxygen atom that is unable to participate in hydrogen bonding due to the presence of bulky alkyl groups on both sides of the oxygen atom. Ethers are good solvents partly because they are not very reactive. Most ethers can be cleaved, however, by hydrobromic acid (HBr) to give alkyl bromides or by hydroiodic acid (HI) to give alkyl iodides.Product Details of 112-49-2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Heat capacity of six glymes in N,N-dimethylformamide + water mixtures. Solvation of glymes was written by Jozwiak, Malgorzata;Komudzinska, Marlena;Tyczynska, Magdalena;Marczak, Wojciech;Jozwiak, Andrzej. And the article was included in Journal of Molecular Liquids in 2022.Formula: C8H18O4 This article mentions the following:

The paper presents the heat capacities of glyme solutions: monoglyme, diglyme, triglyme, tetraglyme, pentaglyme and hexaglyme, in binary solvents N,N-dimethylformamide + water at four temperatures (293.15 K, 298.15 K, 303.15 K, 308.15 K) obtained using differential calorimeter Micro DSC III, Setaram – France. The concentration of glymes was approx. 0.25 mol/kg. On the basis of the obtained exptl. results, the apparent isobaric heat capacities of the glymes were calculated It was noted that the larger the glyme mol. was, the more pronounced the increase in the value of the apparent molar heat capacity function with the increase in water content in the two-component solvent. The observed changes in apparent isobaric heat capacity as a function of the water content in the mixed solvent are discussed in terms of the hydrophobic nature of the glymes. Moreover, it was shown that the apparent molar isobaric heat capacity of the glymes in pure solvents, i.e. in water and in N,N-dimethylformamide, increases linearly with the increase in the number of oxygen atoms in the glyme mols. i.e. with the size of glyme mols. Furthermore, a linear correlation was observed between the apparent isobaric molar heat capacity and the enthalpic effect of the hydrophobic hydration of the studied glymes at 298.15 K. The results obtained in this paper are compare with the same obtained for selected cyclic ethers. In the experiment, the researchers used many compounds, for example, 2,5,8,11-Tetraoxadodecane (cas: 112-49-2Formula: C8H18O4).

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive, and as a result they are useful as solvents for fats, oils, waxes, perfumes, resins, dyes, gums, and hydrocarbons. Vapours of certain ethers are used as insecticides, miticides, and fumigants for soil. At room temperature, ethers are pleasant-smelling colourless liquids. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive, and as a result they are useful as solvents for fats, oils, waxes, perfumes, resins, dyes, gums, and hydrocarbons. Vapours of certain ethers are used as insecticides, miticides, and fumigants for soil.Formula: C8H18O4

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Statistical analysis of GC-MS screening data to evaluate organic contaminants in surface and drinking water was written by Houtman, Corine J.;Kroesbergen, Jan;Baggelaar, Paul K.;van Lieverloo, J. Hein M.. And the article was included in Science of the Total Environment in 2019.Application of 112-49-2 This article mentions the following:

Due to anthropogenic activities in the catchments, surface waters are contaminated with a large variety of chem. compounds Drinking water companies in the Netherlands use surface water from the rivers Rhine, and Meuse, Lake IJssel and water from a reclaimed land area as sources for the production of drinking water. Samples from the abstraction points and the produced drinking waters were investigated using chem. screening with gas chromatog. coupled to mass spectrometry to detect an as wide as possible range of organic contaminants, generating enormous data sets. This study aimed to evaluate and interpret five and a half years of screening data to get insight in the variety of known and new less polar compounds in surface and drinking waters, and to investigate if there were spatial patterns in the detection of compounds Compounds from a wide variety of applications were detected. The vast majority of detected compounds was found only in a few samples. Certain compounds, however, e.g. organophosphate flame retardants, were detected with prevalences up to 100% per location. Most compounds were detected in samples from the rivers Rhine and Meuse, less in those from Lake IJssel and the reclaimed land area and only few in drinking water. Principal component and Hierarchical Cluster Analyses helped to detect patterns in the presence of contaminants on particular locations and to prioritize compounds for further investigation of their emission sources, and -in case of unknown compounds – their identification. In the experiment, the researchers used many compounds, for example, 2,5,8,11-Tetraoxadodecane (cas: 112-49-2Application of 112-49-2).

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. Ethers are good solvents partly because they are not very reactive. Most ethers can be cleaved, however, by hydrobromic acid (HBr) to give alkyl bromides or by hydroiodic acid (HI) to give alkyl iodides. Ethers feature bent C閳ユ彊閳ユ弲 linkages. In dimethyl ether, the bond angle is 111鎺?and C閳ユ彊 distances are 141 pm. The barrier to rotation about the C閳ユ彊 bonds is low. The bonding of oxygen in ethers, alcohols, and water is similar. In the language of valence bond theory, the hybridization at oxygen is sp3.Application of 112-49-2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Nonvolatile and nonflammable sulfolane-based electrolyte achieving effective and safe operation of the Li-O₂ battery in open O₂ environment was written by Li, Zhengang;Song, Cun;Dai, Peng;Wu, Xiaohong;Zhou, Shiyuan;Qiao, Yu;Huang, Ling;Sun, Shi-Gang. And the article was included in Nano Letters in 2022.HPLC of Formula: 112-49-2 This article mentions the following:

The Li-O₂ battery should operate effectively/safely in an open O₂ environment for practical applications, but not trapped in sealed/closed atm. However, the typical use of volatile and flammable electrolyte restricts Li-O₂ battery to be able to be running in open O₂ environment. We report herein, for the first time, a highly electrochem. reversible Li-O₂ battery operated in an open O₂ environment, i.e., under the condition of keeping O₂ flowing continuously based on a nonvolatile and nonflammable sulfolane (TMS) solvent. The electrochem. irreversibility of Li₂O₂/O₂ conversion and incompatibility between Li metal anodes and electrolyte have been addressed via dissolving LiNO₃ in concentrated TMS electrolyte. The tuned electrolyte not only enables a stable solid electrolyte interphase (SEI) with conformal inorganic components (including LiF, LiN_xO_y, and Li₂O) that promotes a uniform Li electro-plating/stripping process but also results in a low charge overpotential, a stable discharge terminal plateau, and reversible O₂ generation of the Li-O₂ battery conducted in an open O₂ environment. In the experiment, the researchers used many compounds, for example, 2,5,8,11-Tetraoxadodecane (cas: 112-49-2HPLC of Formula: 112-49-2).

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. The oxygen atom in ethers are more electronegative than carbon, thus the hydrogens which are alpha to the ethers are more acidic than the simple hydrocarbons. Electron-deficient reagents are also stabilized by ethers. For example, borane (BH3) is a useful reagent for making alcohols. Pure borane exists as its dimer, diborane (B2H6), a toxic gas that is inconvenient and hazardous to use. Borane forms stable complexes with ethers, however, and it is often supplied and used as its liquid complex with tetrahydrofuran (THF).HPLC of Formula: 112-49-2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Topological Effects of Dendronized Polymers on Their Thermoresponsiveness and Microconfinement was written by Xu, Gang;Zhang, Jiaxing;Jia, Ruitong;Li, Wen;Zhang, Afang. And the article was included in Macromolecules (Washington, DC, United States) in 2022.SDS of cas: 112-49-2 This article mentions the following:

Topol. structures can provide dendritic polymers with featured properties through cooperative effects beyond their mol. structures. Herein, we report the synthesis of a series of oligoethylene glycol (OEG)-based dendronized polymers, which carry the first generation of 2-fold, 4-fold, or 6-fold dendritic OEG pendants with methoxyl or ethoxyl terminals. Depending on the OEG branching d., these polymers show different mol. thicknesses and exhibit characteristic thermoresponsiveness with phase transition temperatures in the range of 16.6-67.2鎺矯. Furthermore, the higher the OEG branching d., the higher the shielding to the interior parts from the dendritic OEGs cooperatively to exhibit “mol. envelope” effects. This mol. microconfinement formed from the crowded OEG dendrons was further investigated through covalently linked or phys. mixed dye. Topol. structures of the polymers are discovered to play a key role in encapsulation of the dye guest and can modulate its transition within the aggregates through the thermally induced phase transitions. In the experiment, the researchers used many compounds, for example, 2,5,8,11-Tetraoxadodecane (cas: 112-49-2SDS of cas: 112-49-2).

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. Of all the functional groups, ethers are the least reactive ones. Ether bonds are quite stable towards bases, oxidizing agents and reducing agents. But on the other hand, ethers undergo cleavage by reaction with acids. Ethers feature bent C閳ユ彊閳ユ弲 linkages. In dimethyl ether, the bond angle is 111鎺?and C閳ユ彊 distances are 141 pm. The barrier to rotation about the C閳ユ彊 bonds is low. The bonding of oxygen in ethers, alcohols, and water is similar. In the language of valence bond theory, the hybridization at oxygen is sp3.SDS of cas: 112-49-2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem