Tag: 100-200

Oil chain-length effect on wetting transitions in ternary water + oil + surfactant mixtures was written by Chen, Li-Jen;Chiu, Chun-Da;Shau, Fa-Shun;Cheng, Wen-Jia;Wu, Jyh-Gang. And the article was included in Journal of Physical Chemistry B in 2002.Formula: C10H22O3 The following contents are mentioned in the article:

Tn the three-liquid-phase coexisting region of the system water + tetradecane + diethylene glycol monohexyl ether (C₆E₂), the middle surfactant-rich phase undergoes a sequence of wetting transitions comprising nonwetting → partial wetting → complete wetting at the interface of oil-rich and water-rich phases as the temperature is raised from its lower critical con-solute temperature toward its upper critical con-solute temperature In this study, the effect of oil chain length on the wetting transition in the system water + C₆E₂ + oil (dodecane, decane, and octane) s investigated by interfacial tension measurements. A sequence of wetting transitions, nonwetting → partial wetting → complete wetting, of the middle C₆E₂-rich phase is observed in all 3 systems while the system temperature increases. A decrease of the oil chain length in the system water + C₆E₂ + oil would make the three-liquid-phase body shrink and lead the system to approach a tricritical point. The effect of the system water + C₆E₂ + oil approaching its tricritical point on the wetting behavior of the middle C₆E₂-rich phase is discussed. This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Formula: C10H22O3).

2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Formula: C10H22O3

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

Fragmentation of Woody Lignocellulose into Primary Monolignols and Their Derivatives was written by Sun, Jiankui;Li, Helong;Xiao, Ling-Ping;Guo, Xuan;Fang, Yunming;Sun, Run-Cang;Song, Guoyong. And the article was included in ACS Sustainable Chemistry & Engineering in 2019.Quality Control of 4-Hydroxy-3-methoxyphenethanol The following contents are mentioned in the article:

Lignin, which is biosynthesized through oxidative radical polymerization from primary monolignols during plant growth, represents the most abundant source of renewable aromatic resources. The search for efficient and selective catalysts for the production of monolignols and their corresponding unsaturated derivatives from the direct depolymerization of lignin is of great interest and importance, as such products are important platform chems. for the synthesis of natural products, pharmaceuticals, and functional materials. We report herein the first case of a supported molybdenum catalyst that functions as an efficient and selective catalyst for the fragmentation of woody lignocelluloses, leading to monolignols and ethers in high yields with high selectivity. Hydrogenation of the side chain and recondensation were not observed, suggesting that etherification acts as a new stabilization mechanism in the current Mo catalytic system. The (hemi)cellulose components were well preserved and amenable to valorization via enzymic hydrolysis and chemocatalytic conversion. This method constitutes an economically responsible pathway for lignin valorization as well as fractionation and sequential utilization of all of the biomass components. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Quality Control of 4-Hydroxy-3-methoxyphenethanol).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Quality Control of 4-Hydroxy-3-methoxyphenethanol

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

Evaluation of microemulsions of cationic surfactants and a polyoxyethylene cosurfactant for electrolytic dechlorinations of chlorobiphenyls was written by Zhang, Shiping;Rusling, James F.. And the article was included in Journal of Colloid and Interface Science in 1996.Name: 2-(2-(Hexyloxy)ethoxy)ethanol The following contents are mentioned in the article:

Three microemulsions containing cosurfactant 2-(2-hexyloxyethoxy)ethanol, 1% aqueous KBr, dodecane, and either didodecyldimethylammonium bromide (DDAB) or cetyltrimethylammonium bromide (CTAB) with conductivities and viscosities appropriate for electrolytic applications were prepared These fluids were characterized further by measuring diffusion coefficients of electrochem. probes and pyrene fluorescence peak ratios characteristic of polarity and viscosity of the oil phase. A microemulsion of DDAB/2-(2-hexyloxyethoxy)ethanol/1% aqueous KBr/dodecane (7.3/36/22.7/34 by weight) had the highest conductivity and lowest viscosity and gave the most pos. reduction potential for 4,4′-dichlorobiphenyl of the four-component fluids examined Electrochem. catalytic reduction of 4,4′-dichlorobiphenyl was done with this fluid, a lead electrode, and zinc phthalocyanine as catalyst with only a small loss of current efficiency compared to a previously used 3-component 21% DDAB microemulsion. The four-component 7.3% DDAB microemulsion was prepared at half the cost of the three-component 21% DDAB microemulsion. On the basis of diffusion, conductivity, and fluorescence studies, the structure of the 7.3% DDAB microemulsion is probably bicontinuous. This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Name: 2-(2-(Hexyloxy)ethoxy)ethanol).

2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Name: 2-(2-(Hexyloxy)ethoxy)ethanol

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

Effect of fermentation temperature on volatile compounds of Petit Verdot red wines from the Spanish region of La Mancha (central-southeastern Spain) was written by Izquierdo-Canas, P. M.;Gonzalez Vinas, M. A.;Mena-Morales, A.;Perez Navarro, J.;Garcia-Romero, E.;Marchante-Cuevas, L.;Gomez-Alonso, S.;Sanchez-Palomo, E.. And the article was included in European Food Research and Technology in 2020.Recommanded Product: 2380-78-1 The following contents are mentioned in the article:

The aim of this work was to research the relationship between volatile composition of Petit Verdot red wines and the fermentation temperature Winemaking process was carried out at 17°C, 21°C, and 25°C temperatures Solid-phase extraction (SPE) and gas chromatog.-mass spectrometry (GC-MS) were used to analyze volatile compounds The odor activity values (OAVs) from the different compounds were classified into seven odorant series that describe the aroma profile (fruity, floral, green/fresh, sweet, spicy, fatty, and other odours). The value of each aromatic series was obtained by adding the OAVs of the volatile compounds to each series. The volatile composition was significantly affected by the temperature of the fermentation In general, the increase in the fermentation temperature of La Mancha Petit Verdot red wines from 17 to 25°C produced an increase in the concentration of volatile aroma compounds The highest aroma contributions to Petit Verdot wine were fruity, sweet and floral series, followed by fatty and spicy series, regardless of fermentation temperature The highest values of aromatic series were found in wines fermented at 21°C. The results of this work show that changes in the fermentation temperature of wines can have a significant impact on their volatile compound profile. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Recommanded Product: 2380-78-1).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Recommanded Product: 2380-78-1

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

Hydrothermal Depolymerization of Kraft Lignins with Green C₁-C₃ Alcohol-Water Mixtures was written by Guo, Ming;Maltari, Riku;Zhang, Rui;Kontro, Jussi;Ma, Enlu;Repo, Timo. And the article was included in Energy & Fuels in 2021.Name: 4-Hydroxy-3-methoxyphenethanol The following contents are mentioned in the article:

Lignin is a potential renewable raw material for synthesis of aromatic mols. and materials. Particularly, Kraft-type lignins are abundantly available as a byproduct of wood and paper industries. Currently, there are practically no valuable products made using this highly complex polymer. Within this work, we have investigated the straightforward, high-yield depolymerization of two different tech. lignins (Indulin AT and alk. lignin) using only a mixture of green short-chain (C₁-C₃) alcs. and water as solvents. As shown here, at a temperature of 220°C, autogenous pressure, and isopropanol/water as a co-solvent medium, it is possible to cleave Kraft lignin without char-forming side reactions. The obtained so-called “light” oil contains guaiacol-based monomeric units of 23 wt % yield together with liquid oligomers of 13 wt % yield combining liquid-liquid and solid-liquid extraction Two-dimensional NMR anal. of lignin residues showed that the isopropanol/water treatment caused a marked breakdown of the intermol. β-O-4 and β-β bonds; thus, the depolymerization produced monomers and lignin residues with lower mol. weight The results suggested a synergistic effect between isopropanol and water. No sign of repolymn. reactions could be observed with this process. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Name: 4-Hydroxy-3-methoxyphenethanol).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Name: 4-Hydroxy-3-methoxyphenethanol

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

Efficient and Mild Reductive Amination of Carbonyl Compounds Catalyzed by Dual-Function Palladium Nanoparticles was written by Jv, Xinchun;Sun, Shuting;Zhang, Qun;Du, Muyao;Wang, Lan;Wang, Bo. And the article was included in ACS Sustainable Chemistry & Engineering in 2020.Computed Properties of C10H15NO The following contents are mentioned in the article:

Primary amines are valuable building blocks for a large number of chems., developing efficient synthetic routes toward primary amines and particularly those proceeding under mild conditions are highly desirable and rather challenging. Presented here is a highly efficient procedure enabling itself to proceed in H₂O using H₂ of 1 atm (0.1 MPa) for the reductive amination of carbonyl compounds Several palladium-based nanoparticle (Pd-NP) catalysts were prepared, and one emerged to be the most suitable and classified as nanoparticles, due to its high catalytic activity, reactions were allowed to proceed at room temperature using NH₃, and the corresponding primary amines can be afforded with yields of up to 99%. Some control reactions were carried out, revealing that H₂ is pivotal for activating the Pd-NPs. The fact that the Pd-NPs can catalyze both reductive amination of carbonyl compounds and hydrogenation of imines proves Pd-NPs to be a dual-function catalyst, and a plausible mechanism was proposed. A dual-function catalyst promoted the reductive amination of carbonyl compounds with high efficiency using NH₃·H₂O and H₂ (1 atm) under mild conditions and generated H₂O as the sole byproduct. This study involved multiple reactions and reactants, such as N-(3-Methoxybenzyl)ethanamine (cas: 140715-61-3Computed Properties of C10H15NO).

N-(3-Methoxybenzyl)ethanamine (cas: 140715-61-3) belongs to ethers. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Computed Properties of C10H15NO

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

Ultrafine grinding of poplar biomass: effect of particle morphology on the liquefaction of biomass for methyl glycosides and phenolics was written by Zhai, Qiaolong;Li, Fanglin;Wang, Fei;Feng, Junfeng;Jiang, Jianchun;Xu, Junming. And the article was included in Cellulose (Dordrecht, Netherlands) in 2019.HPLC of Formula: 2380-78-1 The following contents are mentioned in the article:

This paper shows that mech. ultrafine grinding of poplar wood is an efficient pretreatment approach to enhance its reactivity during liquefaction. The microstructural features and chem. properties of biomass samples with different particle morphol. were studied. In particular, we found that more cellulose and hemicellulose were exposed on the outer surface of the ultrafine powder (cellular scale of plant) and the crystal lattice structure of cellulose was significantly damaged. As a result, the degree of liquefaction reached 92.03% at 180° using UP feedstock, largely exceeding the value (53.35%) obtained at the same temperature using PS0.25. Two groups of value-added chems., namely phenolics and Me glycosides were obtained during liquefaction. At 180°C, the yields of Me glycosides and phenolics obtained from an UP feedstock were, resp., 28.45% and 10.17% higher than those obtained from the PS0.25. In addition, a high degree of liquefaction (> 90%) could be obtained at a temperature 40° lower than the one required by PS0.25, greatly reducing the occurrence of side reactions and improving the purity of target products. Overall, the mech. fragmentation of biomass at cellular scale is a promising pretreatment method allowing high valorization of the entire biomass. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1HPLC of Formula: 2380-78-1).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.HPLC of Formula: 2380-78-1

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

Potential use of corn leaf waste for biofuel production in Jordan (physio-chemical study) was written by Amer, Mohammad W.;Aljariri Alhesan, Jameel S.;Ibrahim, Sawsan;Qussay, Ghadeer;Marshall, Marc;Al-Ayed, Omar S.. And the article was included in Energy (Oxford, United Kingdom) in 2021.Recommanded Product: 4-Hydroxy-3-methoxyphenethanol The following contents are mentioned in the article:

The increase in energy demand, especially in Jordan, has encouraged researchers to consider alternative sources of energy, such as biofuel production from agricultural waste. For this study, Jordanian corn leaf waste was characterized by ultimate and proximate anal., TGA, FTIR and solid state 13C NMR. The waste showed high volatile matter, high at. H/C ratio and high O content. The corn leaf waste contained 32.1 wt% cellulose, 18.1 wt% hemicelluloses and 11.9 wt% lignin. The FTIR and 13C NMR spectrums showed high concentrations of aliphatic and carbonyl carbon. The corn leaf waste was pyrolyzed in a temperature range of 300-450°C under a constant flow rate of nitrogen. Higher oil yield was obtained at pyrolysis temperature of 450°C. The gas yield and higher heating value of the product increased as the temperature increased, whereas the water content decreased. The biofuels were rich in carbon and had a high oxygen content, which decreased as the temperature increased. The 1H NMR confirmed the markedly aliphatic character of the biofuel. The GC-MS for the biofuel indicated the presence of hydrocarbon series, large amounts of oxygenated compounds and a few nitrogen and sulfur compounds The simulated distillation showed a high proportion of diesel fraction (57-73%). This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Recommanded Product: 4-Hydroxy-3-methoxyphenethanol).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Recommanded Product: 4-Hydroxy-3-methoxyphenethanol

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

Solubility Measurement and Thermodynamic Properties Calculation for Several CO₂ + Ether Absorbent Systems was written by Li, Yun;You, Yanhong;Huang, Weijia;Yang, Jie. And the article was included in Journal of Chemical & Engineering Data in 2019.Quality Control of 2-(2-(Hexyloxy)ethoxy)ethanol The following contents are mentioned in the article:

Six phys. absorbents with the ether groups were selected for CO₂ absorption: tetraethylene glycol di-Me ether (TEGDME), diethylene glycol monohexyl ether, 2-butoxyethyl ether, triethylene glycol monobutyl ether, ethylene glycol di-Bu ether, and dipropylene glycol di-Me ether (DPGDME). CO₂ solubilities in these absorbents were measured at 273.15 and 283.15 K and 0-1.2 MPa. Henry’s constants of these CO₂ + ether absorbent systems were calculated and analyzed at 273.15 K. The ether group is found more powerful than the methylene group, and the Et group is more effective than the hydroxyl group to improve the absorption ability of the absorbents. A lower temperature tends to facilitate the absorption process by increasing the absorption ability. Henry’s constants and mass solubilities of the ether absorbents were compared with those of the ionic liquids, common solvents, and other absorbents. TEGDME and DPGDME are potential absorbents according to the evaluation in both mole and mass fraction. The thermodn. properties, such as entropy, enthalpy, and Gibbs free energy of solution, for CO₂ + the ether absorbent systems were calculated and discussed for potential development of corresponding CO₂ capture processes. This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Quality Control of 2-(2-(Hexyloxy)ethoxy)ethanol).

2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) belongs to ethers. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Quality Control of 2-(2-(Hexyloxy)ethoxy)ethanol

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

Alkali-catalyzed liquefaction of pinewood sawdust in ethanol/water co-solvents was written by Hu, Yulin;Gu, Zicheng;Li, Wenbin;Xu, Chunbao. And the article was included in Biomass and Bioenergy in 2020.Name: 4-Hydroxy-3-methoxyphenethanol The following contents are mentioned in the article:

In this study, pinewood sawdust was liquefied in either ethanol/water co-solvents (50/50, weight/weight) or pure water at 300°C for 30 min and 10 wt% of feedstock loading, with or without the use of Na₂CO₃ or NaOH as a catalyst. The phys. and chem. properties of liquefaction products (bio-crude oil and solid residue) were comprehensively characterized by FT-IR, GC-MS, elemental, GPC and TGA analyses. The results showed that the highest biomass conversion of approx. 98% was obtained in ethanol/water mixed solvents and without catalyst, along with a maximum yield of bio-crude oil (∼48 wt%). The HHV of crude oil was within the range of 26-30 MJ/kg. The results indicated that the beneficial effect of ethanol on the bio-crude oil yield might be compromised by adding Na₂CO₃ or NaOH into the liquefaction system under investigated reaction conditions. As suggested by GPC anal., the bio-crude oil obtained in ethanol/water co-solvents from both non-catalytic and catalytic liquefaction contained a slightly higher mol. weight than that obtained in pure water. Addnl., TGA results indicated that the b.p. distribution of bio-crude oil was only affected by ethanol addition, whereas, the effect of the catalyst was found to be minor. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Name: 4-Hydroxy-3-methoxyphenethanol).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Name: 4-Hydroxy-3-methoxyphenethanol

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