Category: 79917-90-1

Baca, Kalin R. published the artcilePhase Equilibria and Diffusivities of HFC-32 and HFC-125 in Ionic Liquids for the Separation of R-410A, Synthetic Route of 79917-90-1, the publication is ACS Sustainable Chemistry & Engineering (2022), 10(2), 816-830, database is CAplus.

Current legislation calling for the phase out of hydrofluorocarbon (HFC) refrigerants is driving a global market shift that has prompted industry and research institutions to investigate new refrigerant mixtures and sustainable separation techniques for recycling refrigerants. The recent American Innovation and Manufacturing (AIM) Act of 2020 requires an 85% phase down of HFC production over the next 15 years. To achieve this goal, azeotropic refrigerant mixtures, such as R-410A composed of 50 wt % HFC-32 (difluoromethane, CH₂F₂) and 50 wt % HFC-125 (pentafluoroethane, CHF₂CF₃), will have to be separated to recycle the lower global warming HFC-32 component. The present work investigates the solubility of HFC-32 and HFC-125 in six ionic liquids (ILs) with halogen anions for the purpose of developing the thermophys. property data required for designing extractive distillation recycling processes and understanding the choice of cation and anion type. A gravimetric microbalance was used to collect isothermal vapor-liquid equilibrium data for each of the ILs at 298.15 K and pressures from 0.05 to 1.0 MPa. The Peng-Robinson equation of state was used to model the solubility of the HFCs in the ILs. The solubility of HFC-32 in the ILs showed small differences, while the solubility of HFC-125 had significant variations with respect to the anion type and the cation alkyl chain length. Fick’s law was applied to calculate diffusion coefficients for each HFC/IL system. HFC-32 has a greater diffusivity than HFC-125 based on the smaller mol. size. The 1-n-hexyl-3-methylimidazolium chloride and the trihexyl(tetradecyl)phosphonium chloride ILs have the highest HFC-125/HFC-32 selectivity at 298.15 K. Based on both the mass uptake and selectivity ratio, these two ILs are potential entrainers for the separation of R-410A using extractive distillation

ACS Sustainable Chemistry & Engineering published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C8H15ClN2, Synthetic Route of 79917-90-1.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Wysokowski, Marcin published the artcileIonic liquid-assisted synthesis of chitin-ethylene glycol hydrogels as electrolyte membranes for sustainable electrochemical capacitors, Related Products of imidazoles-derivatives, the publication is Scientific Reports (2022), 12(1), 8861, database is CAplus and MEDLINE.

A novel chitin-ethylene glycol hybrid gel was prepared as a hydrogel electrolyte for elec. double-layer capacitors (EDLCs) using 1-butyl-3-methylimidazolium acetate [Bmim][Ac] as a chitin solvent. Examination of the morphol. and topog. of the chitin-EG membrane showed a homogeneous and smooth surface, while the thickness of the membrane obtained was 27μm. The electrochem. performance of the chitin-EG hydrogel electrolyte was investigated by cyclic voltammetry and galvanostatic charge/discharge measurements. The specific capacitance value of the EDLC with chitin-EG hydrogel electrolyte was found to be 109 F g^-1 in a potential range from 0 to 0.8 V. The tested hydrogel material was electrochem. stable and did not decompose even after 10,000 GCD cycles. Addnl., the EDLC test cell with chitin-EG hydrogel as electrolyte exhibited superior capacitance retention after 10,000 charge/discharge cycles compared with a com. glass fiber membrane.

Scientific Reports published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C6H4ClNO2, Related Products of imidazoles-derivatives.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Kerche, Eduardo Fischer published the artcileThe influence of ionic liquid concentration on microcrystalline cellulose modification, Recommanded Product: 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, the publication is Carbohydrate Polymer Technologies and Applications (2022), 100211, database is CAplus.

Ethanolic ionic liquid (IL) solutions, containing different 1-n-butyl-3-methylimidazolium chloride (C₄MImCl) concentrations were used to modify the surface of com. microcrystalline cellulose (MCC). The chosen ratios were: 4, 8, 16, and 32 weight% of IL, in relation to the MCC mass. These treatments with IL did not affect the MCC morphol. FTIR anal. showed the characteristic bands of C₄MImCl when the IL concentration was higher than 4 weight%. XRD diffractograms show that the crystals may have been disrupted for IL concentrations above 4 weight%. ¹H NMR confirmed the formation of strong hydrogen bonds between C₄MImCl and MCC, especially for MCC treated with 4 weight% of IL. The functionalization using IL, regardless of the content, showed two DTG peaks, without altering the MCC Arrhenius’ parameters and degradation mechanisms. 4 Weight% of C₄MImCl proved to be suitable for the MCC surface modification, improving thermal stability without detrimental effects on MCC morphol.

Carbohydrate Polymer Technologies and Applications published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C8H15ClN2, Recommanded Product: 3-Butyl-1-methyl-1H-imidazol-3-ium chloride.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Sekhar Pattanaik, Sudhansu published the artcileInvestigation of the inter-ionic interactions of an imidazolium-based ionic liquid with the aqueous solutions of tripotassium citrate and trisodium citrate through volumetric, acoustic and FTIR routes, Computed Properties of 79917-90-1, the publication is Journal of Molecular Liquids (2022), 118644, database is CAplus.

Volumetric, acoustic and spectroscopic characteristics of an imidazolium-based ionic liquid, 1-Butyl-3-methylimidazolium chloride ([bmim][Cl]) in water and aqueous solutions of tri-potassium citrate, K₃Cit, and tri-sodium citrate, Na₃Cit were studied at five different temperatures T = (298.15 K, 303.15 K, 308.15 K, 313.15Kand 318.15 K) and atm. pressure (0.1Mpa). The apparent molar volume,VΦ, and apparent molar compressibility, KΦ, S were computed from the exptl. data of densities and ultrasonic speeds. The derived properties such as standard partial molar volume, V⁰Φ , partial molar compressibilities, K⁰Φ,S, limiting apparent molar expansivity, E⁰Φ, and their corresponding transfer volumes, Δ_trV⁰Φ, transfer compressibilities, ΔtrK⁰Φ,S, of [bmim][Cl] from water to aqueous potassium/sodium citrate solutions were also determined The transfer properties have been used to discuss the solute-solvent interactions that exist in the solutions The pos. value of Hepler’s constant indicates that the IL has structure-making ability in the studied solutions In addition, FTIR spectroscopy was executed on the systems. Based on these data, the predominant mol. interactions occurring between [bmim][Cl] and water and in between [bmim][Cl] and K₃Cit/Na₃Cit were found to be hydrogen bonds.

Journal of Molecular Liquids published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C10H16Br3N, Computed Properties of 79917-90-1.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Sarkar, Sujoy published the artcileIonic liquid-assisted synthesis of tri-functional ruthenium oxide nanoplatelets for electrochemical energy applications, SDS of cas: 79917-90-1, the publication is Journal of Materials Science (2022), 57(15), 7680-7693, database is CAplus.

Nanostructured crystalline metal oxides are in great demand in industrial processes due to their unique physicochem. properties and ionic liquids (ILs) are promising solvent for synthesizing such materials. Herein, we report an IL-assisted, facile, and environmental benign approach to synthesize rutile phase of ruthenium oxide (RuO₂) nanoplatelets (NPLs) structure with a size distribution of a few tens of nm. The key to this synthesis methodol. is the use of imidazolium-based ILs as solvents and binder in the ionothermal process. The obtained RuO₂ phase is thoroughly characterized by spectroscopic and microscopic techniques. Further, the material is used as electrocatalyst toward electrochem. energy storage and conversion in an alk. solution The platelet morphol. of RuO₂ exhibits excellent supercapacitor performance and its capacitance value is âˆ?200 F g^-1 in 1 M KOH solution Besides, the as-synthesized RuO₂ NPLs shows superior water oxidation and chlorine evolution processes at a minimal overpotential, i.e., 1.47 V in 1 M KOH and 1.5 V in 3 M KCl (pH 3) electrolyte, resp., exhibiting its tri-functional electrochem. behavior toward production of renewable energies. The present study demonstrates that single-step production of the NPL morphol. of RuO₂ has potential implications in the field of electrolysis and supercapacitors.

Journal of Materials Science published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C8H15ClN2, SDS of cas: 79917-90-1.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Sulaimon, Aliyu Adebayo published the artcilePredicting naphthenate precipitation and evaluating the effect of ionic liquids on its deposition, Related Products of imidazoles-derivatives, the publication is Journal of Petroleum Science & Engineering (2022), 109865, database is CAplus.

Naphthenic acids that are naturally carboxylic compounds contained in heavy crude oil are the main source of corrosion and blockage in a crude oil pipeline. The blockage is due to the formation of naphthenate deposits through a reaction of naphthenic acid with metal ions present in the crude oil. In the present study, model oil is used to evaluate the effect of water cut in the range of 10%-90%, brine pH in the range of 6-10, Ca²⁺ concentration in the range of 0.5%-2.5% and temperature in the range of 30 °C-60 °C towards naphthenate deposition with the aid of response surface methodol. NMR (NMR) and Fourier Transform IR (FTIR) were used to evaluate the structure of the naphthenic acids used. Results show that Ca²⁺ concentration contributes mostly to the naphthenate deposition, followed by brine pH, water cut and temperature Two math. models were developed to predict the final pH of the oil-brine system and the mass of precipitates with average relative errors (AREs) of 0.0328 and 0.0325 resp. The effects of two ionic liquids (ILs), 1-ethyl-3-methylimidazolium chloride (EMIM-Cl) and 1-butyl-3-methylimidazolium chloride (BMIM-Cl), on naphthenates precipitation, were also evaluated. Anal. showed that both ILs can reduce the amount of naphthenate deposited, with the BMIM-Cl showing better performance than the EMIM-Cl.

Journal of Petroleum Science & Engineering published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C13H26N2, Related Products of imidazoles-derivatives.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Li, Shiye published the artcileIonic liquid-modulated aerobic oxidation of isoeugenol and β-caryophyllene via nanoscale Cu-MOFs under mild conditions, Safety of 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, the publication is Molecular Catalysis (2022), 112416, database is CAplus.

Novel synergistic systems based on Cu-1,3,5-benzenetricarboxylate and ionic liquid are developed for the convenient conversion of renewable olefins, isoeugenol and β-caryophyllene, under very mild conditions (i.e. 313 K and 1 atm O₂). Using acidic ionic liquid [C₄mim][HSO₄] (5.0 mol%) as co-catalyst, Cu₃(BTC)₂-Lauric acid (LA) afforded high selectivity (95.8%) and excellent yield (86.3%) for vanillin Me ketone during the aerobic oxidation of isoeugenol. In comparison, 91.1% selectivity for vanillin together with 28.9% conversion of isoeugenol was obtained over Cu₃(BTC)₂-LA in the presence of amino acid ionic liquid, [C₄mim][Ala]. Addnl., 91.3% selectivity and 86.5% yield for β-caryophyllene epoxide were provided by Cu₃(BTC)₂-LA with the aid of neutral [C₄mim]Cl (5.0 mol%), indicating the importance of different types of ILs in tuning the microenvironments of designed Cu₃(BTC)₂-LA nanosystems. Simultaneously, Cu₃(BTC)₂-LA/IL showed superior stability during above-mentioned transformations, as verified by TEM, FT-IR and XRD analyses. Insights into the synergistic free radical routes were supported by fluorescence and DRUV-Vis characterizations.

Molecular Catalysis published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C8H15ClN2, Safety of 3-Butyl-1-methyl-1H-imidazol-3-ium chloride.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Kosmulski, Marek published the artcileZeta potential in dispersions of titania nanoparticles in moderately polar solvents stabilized with anionic surfactants, Application of 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, the publication is Journal of Molecular Liquids (2022), 118972, database is CAplus.

Electrophoretic mobility of titania nanoparticles in ethane-1,2-diol and in propane-1,2-diol in the presence of SDS and sodium octadecylsulfate was measured. Several dispersions were acidified with HCl or alkalized with NaOH. Addition of acid resulted in pos. and addition of base resulted in neg. zeta potential. Anionic surfactants have moderate effect on the zeta potential. They enhanced neg. zeta potential, but their effect became significant at surfactant concentrations as high as 1 g/L. Sodium octadecylsulfate was more efficient than SDS in shifting the zeta potential to more neg. values.

Journal of Molecular Liquids published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C8H15ClN2, Application of 3-Butyl-1-methyl-1H-imidazol-3-ium chloride.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Ding, Haoshu published the artcilePyrolytic characteristics of Fushun oil shale and its by-products, Recommanded Product: 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, the publication is Journal of Thermal Analysis and Calorimetry (2022), 147(8), 5255-5267, database is CAplus.

FTIR, TG-DTG, TG-FTIR, and Py-GC-MS were employed to investigate the similarities and differences in the pyrolytic characteristics of Fushun oil shale and its byproducts, i.e., semi-coke and residual. The semi-coke was obtained by slowly pyrolyzing the oil shale to 450°C. The residual was a solid residue prepared by completely extracting the semi-coke with a 1-butyl-3-methylimidazolium chloride and N-Me pyrrolidon mixture The pyrolysis of three samples is related to the cleavages of weak bonds (200-400°C), decomposition of major organic structures (400-600°C), and the cleavages of 3-4 kinds of chem. bonds. Gaussian fitting methods was used to fit the DTG curves to evaluate the contributions of various covalent bonds to the pyrolysis. The flash pyrolysis products and typical gaseous products were identified, showing the most outstanding performances of the aliphatic compounds The differences in the pyrolytic characteristics of three samples are mainly attributed to the diverse forms of thermal bitumen. The attendance of thermal bitumen in the semi-coke, especially its light components generated from oil shale pyrolysis, prompts the more active mass loss behaviors at relatively low temperatures, while the absence of thermal bitumen results in a fairly low mass loss of the residual.

Journal of Thermal Analysis and Calorimetry published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C8H15ClN2, Recommanded Product: 3-Butyl-1-methyl-1H-imidazol-3-ium chloride.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Wu, Wenna published the artcilePolyelectrolyte aerogels with regeneration capacity for efficient removal of particulate matters, Formula: C8H15ClN2, the publication is Journal of Colloid and Interface Science (2022), 446-456, database is CAplus and MEDLINE.

With the rapid development of economy and global industrialization, the problem of air pollution has become a worldwide topic. The efficient filtration of airborne particulate matters (PMs) is critical for human health and environmental sustainability. Herein, self-supporting bio-based polyelectrolyte aerogels were prepared and acted as the advanced filters for efficient removal of PMs. The natural choline cation (Ch⁺) or the organic cation, 1-butyl-3-methylimidazolium (Bmim⁺), are introduced into alginate (Alg^–) to form the polyelectrolytes of ChAlg or BmimAlg due to the electrostatic interaction. By the directional freeze-drying in liquid N₂, hierarchically porous aerogels with mech. robustness, flexibility and thermo-stability were prepared This specific structure may permit the polluted air to pass adequately through the aerogel channels, which are conducive to intercept various PMs with different diameters As an example, the removal efficiency of ChAlg aerogels for PM₁₀, PM_2.5 and PM_0.3 are resp. up to (99.24 ± 0.03)%, (99.22 ± 0.02)%, and (93.41 ± 0.22)% within 15 h durability test. One outstanding character lies in ensuring high removal efficiency, while achieving a good balance with the low pressure drop (10 Pa), which is driven by synergistic effect of passive trapping and electrostatic capture. Moreover, the polyelectrolyte aerogels exhibit excellent antimicrobial activity and regenerated capacity. These properties endow the aerogels of polyelectrolyte ChAlg or BmimAlg with remarkable potential as new advanced filters for masks and other personal protective equipment.

Journal of Colloid and Interface Science published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C24H29N5O3, Formula: C8H15ClN2.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem