Month: November 2022

On April 7, 2020, Joven-Sancho, Daniel; Baya, Miguel; Martin, Antonio; Orduna, Jesus; Menjon, Babil published an article.SDS of cas: 143-10-2 The title of the article was The First Organosilver(III) Fluoride, [PPh4][(CF3)3AgF]. And the article contained the following:

Organosilver(III) fluoride complexes have been assigned a key role in different fluorination processes. To the best of our knowledge, however, none of them seem to have been isolated or even detected thus far. Here we report on the successful synthesis of the trifluoromethyl derivative [PPh4][(CF3)3AgF], which has been isolated in high yield. The thermodn. stability of the Ag-F bond is shown by calculation and demonstrated by multistage mass spectrometry (MSn) under collision-induced dissociation (CID) conditions. Nevertheless, the substantial elongation found in the Ag-F bond (X-ray) is correlated with a marked nucleophilic character of the terminal F ligand. This Ag-F bond is, in fact, quite reactive: it suffers hydrolysis and is also solvolyzed by thiols. The experimental process involved the reaction of 1-Decanethiol(cas: 143-10-2).SDS of cas: 143-10-2

The Article related to crystal structure mol optimized organosilver fluoride preparation hydrolysis solvolysis, fluorides, high oxidation state, organosilver(iii), thiols, trifluoromethylation, Organometallic and Organometalloidal Compounds: Groups Ib, Iib – Cu, Ag, Au, Zn, Cd, Hg and other aspects.SDS of cas: 143-10-2

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On October 31, 1993, Stephenson, Richard M. published an article.Synthetic Route of 2160-93-2 The title of the article was Mutual solubilities: water + cyclic amines, water + alkanolamines, and water + polyamines. And the article contained the following:

Reciprocal solubilities for water + cyclic amines, water + alkanolamines, and water + polyamines were measured. Of the 24 cyclic amines studied, only furfurylamine and cyclohexylamine were consolute with water. Of 31 alkanolamines studied, 26 were miscible with water in all proportions, 3 were partially miscible at 0-90°, and 2 had lower critical solution temperatures of 13.6 and 30°. Of 27 polyamines studied, 24 were miscible with water in all proportions, only 1 was partially miscible at 0-90°, and 2 had lower critical solution temperatures of 3 and 57°. The experimental process involved the reaction of 2,2′-(tert-Butylazanediyl)diethanol(cas: 2160-93-2).Synthetic Route of 2160-93-2

The Article related to solubility water amine alkanolamine polyamine, Phase Equilibriums, Chemical Equilibriums, and Solutions: Phase Equilibriums, Solubility and other aspects.Synthetic Route of 2160-93-2

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On September 1, 2021, Silva, Liliana P.; Martins, Monia A. R.; Abranches, Dinis O.; Pinho, Simao P.; Coutinho, Joao A. P. published an article.Electric Literature of 585-88-6 The title of the article was Solid-liquid phase behavior of eutectic solvents containing sugar alcohols. And the article contained the following:

Mixtures of carbohydrates are often reported in the literature as deep eutectic solvents yet, in most cases, their solid-liquid phase diagrams are poorly characterized and no evidence is available to validate this classification. In this work, the phase diagrams of the binary systems composed of the sugar alcs. mannitol or maltitol and meso-erythritol, xylitol, or sorbitol, were exptl. determined The results obtained reveal that these systems have a thermodn. ideal behavior, questioning their classification as deep eutectic solvents and showing that intermol. hydrogen bonding between the components of a mixture is not a sufficient condition to prepare deep eutectic solvents. The phase diagrams of the systems composed of mannitol or maltitol and cholinium chloride were also measured in this work. In sharp contrast to the mixtures composed solely by sugar alcs., and unlike numerous other choline-based eutectic systems reported in the literature, these systems revealed significant deviations to thermodn. ideality, leading to significant melting temperature depressions. The Cl-OH interaction between cholinium chloride and the sugar alcs. is identified as the main reason for these deviations to ideality, paving the way for the rational choice of hydrogen bond acceptors to prepare deep eutectic solvents. The experimental process involved the reaction of SweetPearlR P300 DC Maltitol(cas: 585-88-6).Electric Literature of 585-88-6

The Article related to sugar alc eutectic solvent solid liquid phase diagram, Phase Equilibriums, Chemical Equilibriums, and Solutions: Phase Equilibriums, Solubility and other aspects.Electric Literature of 585-88-6

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On February 29, 2020, Trolleboe, Anastasia A.; Hartono, Ardi; Usman, Muhammad; Saeed, Muhammad; Svendsen, Hallvard F. published an article.Related Products of 2160-93-2 The title of the article was Vapour-liquid equilibria in pure N-Methyl-1,3-diaminopropane (MAPA), 1,3-diaminopropane (DAP), 2-(Isopropylamino)ethanol (IPAE), N-tert-Butyldiethanolamine (N-TBDEA) and their aqueous solutions. And the article contained the following:

New energy effective solvents are in demand to make global CO2 capture feasible. Phase change solvents seem to be one avenue to reach this goal. This paper presents new exptl. data and modeling results for four amines that have potential as new solvents in blends for post combustion CO2 capture. Both pure component data and data for amine-water solutions, based on ebulliometer measurements, are presented. The data were fitted to an Antoine equation and an NRTL model in two ways: first in a combined fit of both pure component and binary data and then in sep. fits to the individual data sets. The methods were compared and guidelines as to which method to use, based on available data, is provided. Data for 2-(Isopropylamino)ethanol (IPAE), N-tert-Butyldiethanolamine (N-TBDEA), N-Methyl-1,3-diaminopropane (MAPA) and 1,3-diaminopropane (DAP) from the literature were collected and compared with the new data sets. All data and model parameters are given. For all amines, the best fits provided good to excellent representations of the available data. The experimental process involved the reaction of 2,2′-(tert-Butylazanediyl)diethanol(cas: 2160-93-2).Related Products of 2160-93-2

The Article related to mapa dap ipae tbdea aqueous solution vapor liquid equilibrium, Phase Equilibriums, Chemical Equilibriums, and Solutions: Phase Equilibriums, Solubility and other aspects.Related Products of 2160-93-2

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On April 26, 2021, Rozanska, Xavier; Wimmer, Erich; de Meyer, Frederick published an article.HPLC of Formula: 2160-93-2 The title of the article was Quantitative Kinetic Model of CO2 Absorption in Aqueous Tertiary Amine Solvents. And the article contained the following:

Aqueous tertiary amine solutions are increasingly used in industrial CO2 capture operations because they are more energy-efficient than primary or secondary amines and demonstrate higher CO2 absorption capacity. Yet, tertiary amine solutions have a significant drawback in that they tend to have lower CO2 absorption rates. To identify tertiary amines that absorb CO2 faster, it would be efficacious to have a quant. and predictive model of the rate-controlling processes. Despite numerous attempts to date, this goal has been elusive. The present computational approach achieves this goal by focusing on the reaction of CO2 with OH- forming HCO3-. The performance of the resulting model is demonstrated for a consistent exptl. data set of the absorption rates of CO2 for 24 different aqueous tertiary amine solvents. The key to the new model’s success is the manner in which the free energy barrier for the reaction of CO2 with OH- is evaluated from the differences among the solvation free energies of CO2, OH-, and HCO3-, while the pKa of the amines controls the concentration of OH-. These solvation energies are obtained from mol. dynamics simulations. The exptl. value of the free energy of reaction of CO2 with pure water is combined with information about measured rates of absorption of CO2 in an aqueous amine solvent in order to calibrate the absorption rate model. This model achieves a relative accuracy better than 0.1 kJ mol-1 for the free energies of activation for CO2 absorption in aqueous amine solutions and 0.07 g L-1 min-1 for the absorption rate of CO2. Such high accuracies are necessary to predict the correct exptl. ranking of CO2 absorption rates, thus providing a quant. approach of practical interest. The experimental process involved the reaction of 2,2′-(tert-Butylazanediyl)diethanol(cas: 2160-93-2).HPLC of Formula: 2160-93-2

The Article related to carbon dioxide absorption tertiary amine solvent quant kinetic model, Phase Equilibriums, Chemical Equilibriums, and Solutions: Phase Equilibriums, Solubility and other aspects.HPLC of Formula: 2160-93-2

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On November 30, 2013, Cai, Zhuofu; Wang, Lihua; Yang, Hai-Jian; Zhao, Lu published an article.Product Details of 78-26-2 The title of the article was Solubility of 2-methyl-2-propyl-1,3-propanediol and its derivatives in supercritical carbon dioxide: measurement and mathematical modeling. And the article contained the following:

The modifications for the end group of 2-methyl-2-propyl-1,3-propanediol were achieved by reacting with Me oxalyl chloride and Me malonyl chloride to generate two new CO2-philic compounds: bis(methoxyoxalic)-2-methyl-2-Pr propylene glycol ester and bis(methoxymalonic)-2-methyl-2-Pr propylene glycol ester. After that, the solubilities of these 3 compounds were tested and compared in supercritical CO2 (scCO2) within the temperature range of (313-353) K and in the pressure range of (9.3-19.0) MPa. The influence of molar mass and end group on the solubility of compound was also studied. In addition, the exptl. solubility data were correlated according to Bartle, Chrastil and JCF model, and good consistencies were obtained. The average absolute relative deviation (AARD) of the measured values were (5.83, 8.98, 8.77)% when using Bartle’s method, (10.95, 7.53, 7.55)% for Chrastil’s method, and (6.89, 4.10, 4.19)% for the JCF method, resp. It is obvious that the JCF model was proven to be the best model because it had more adjustable parameters of temperature and pressure. Finally, the partial molar volumes V2 for each compound in the supercritical phase were estimated in accordance with Kumar and Johnston’s theory. The experimental process involved the reaction of 2-Methyl-2-propylpropane-1,3-diol(cas: 78-26-2).Product Details of 78-26-2

The Article related to methylpropylpropanediol derivative solubility supercritical carbon dioxide, Phase Equilibriums, Chemical Equilibriums, and Solutions: Phase Equilibriums, Solubility and other aspects.Product Details of 78-26-2

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On December 31, 2013, Zhang, Piyong; Yang, Hai-Jian; Xu, Lingxiao published an article.Product Details of 78-26-2 The title of the article was Solubilities and partial molar volumes of new CO2-philic propane derivatives in supercritical carbon dioxide. And the article contained the following:

Three new potent CO2-philic propane derivatives were designed and synthesized. Their structures were characterized by NMR, FTIR, and elemental anal. Phase behavior of the three compounds was investigated at T = (313, 323, 333, 343 or 353) K and pressures from (7.7 to 12.1) MPa in supercritical carbon dioxide. The measured solubility data were correlated using three models: Chrastil, Sung and Shim (SS), and Jouyban-Chan-Foster (JCF) semi-empirical models, and satisfied agreements were obtained. Solubility data were also utilized to estimate the partial molar volume V̅2 for each compound in the supercritical phase using the theory developed by Kumar and Johnston. The experimental process involved the reaction of 2-Methyl-2-propylpropane-1,3-diol(cas: 78-26-2).Product Details of 78-26-2

The Article related to supercritical carbon dioxide philic propane derivative molar volume solubility, Phase Equilibriums, Chemical Equilibriums, and Solutions: Phase Equilibriums, Solubility and other aspects.Product Details of 78-26-2

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On February 13, 2020, An, Mengyao; Qiu, Jingxuan; Yi, Dengjing; Liu, Haoyou; Hu, Shen; Han, Jiaming; Huang, Haishuang; He, Hui; Liu, Conglei; Zhao, Ziyi; Shi, Yan; Wang, Peng published an article.Quality Control of SweetPearlR P300 DC Maltitol The title of the article was Measurement and Correlation for Solubility of L-Alanine in Pure and Binary Solvents at Temperatures from 283.15 to 323.15 K. And the article contained the following:

The solubility of L-alanine in five binary systems water + methanol, water + ethanol, water + 1-propanol, water + 2-propanol, and water + acetone and 12 neat solvents (water, 1-butanol, methanol, 2-butanol, 2-methyl-1-propanol, 1-pentanol, 1-propanol, ethanol, 2-propanol, Et acetate, acetonitrile, and acetone) was determined by the gravimetrical method within the temperature range from 283.15 to 323.15 K under atm. pressure. The exptl. results indicated that the solubility increased with increasing temperature and mole ratio of water in all investigated solvents and decreased with the rise of the mole fraction of five different organic solvents in the binary solvent systems. The order of L-alanine solubility in the selected pure solvents was water > 1-butanol > methanol ≈ 2-butanol > 2-methyl-1-propanol ≈ 1-pentanol ≈ 1-propanol ≈ ethanol > 2-propanol > Et acetate > acetonitrile > acetone. The solubility was math. represented by the modified Apelblat, Jouyban-Acree, and Apelblat-Jouyban-Acree models. All the models can be found to agree well with the data in the experiment The experimental process involved the reaction of SweetPearlR P300 DC Maltitol(cas: 585-88-6).Quality Control of SweetPearlR P300 DC Maltitol

The Article related to solubility alanine pure binary solvent measurement correlation thermodn modeling, Phase Equilibriums, Chemical Equilibriums, and Solutions: Phase Equilibriums, Solubility and other aspects.Quality Control of SweetPearlR P300 DC Maltitol

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On October 31, 2011, Qu, Yixin; Li, Tian; Wang, Shui published an article.Category: alcohols-buliding-blocks The title of the article was Solubility of D-p-hydroxyphenylglycine p-toluenesulfonate and L-p-hydroxyphenylglycine in different solvents. And the article contained the following:

The solubility of D-p-hydroxyphenylglycine p-toluenesulfonate and L-p-hydroxyphenylglycine in different solvents was measured using a laser monitoring observation technique. The solubility data were accurately correlated by the modified Apelblat equation, the calculated results of which were proved to show fine representation of exptl. data. The experimental process involved the reaction of H-Phg(4-OH)-OH(cas: 32462-30-9).Category: alcohols-buliding-blocks

The Article related to hydroxyphenylglycine solubility, toluenesulfonate hydroxyphenylglycine solubility, Phase Equilibriums, Chemical Equilibriums, and Solutions: Phase Equilibriums, Solubility and other aspects.Category: alcohols-buliding-blocks

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Madsen, Henrik T.; Soegaard, Erik G. published an article in 2012, the title of the article was Use of ESI-MS to determine reaction pathway for hydrogen sulphide scavenging with 1,3,5-tri-(2-hydroxyethyl)-hexahydro-s-triazine.SDS of cas: 4719-04-4 And the article contains the following content:

To study the reaction between hydrogen sulfide and 1,3,5-tri-(2-hydroxyethyl)-hexahydro-s-triazine, which is an often used hydrogen sulfide scavenger, electrospray ionisation mass spectrometry (ESI-MS) was used. The investigation was carried out in pos. mode and tandem mass spectrometry was used to investigate the nature of unknown peaks in the mass spectra. The reaction was found to proceed as expected from theory with the triazine reacting with hydrogen sulfide to form the corresponding thiadiazine. This species subsequently reacted with a second hydrogen sulfide mol. to form the dithiazine species, thereby confirming previously obtained results and showing the ability of the ESI-MS method for studying the scavenging reaction. The final theor. product s-trithiane was not detected. Furthermore, fragmentation products of thiadiazine and dithiazine were detected in the solution and possible pathways and structures were suggested to describe the observed fragments. In these, thiadiazine fragmented to 2-(methylidene amino)-ethanol and 2-(1,3-thiazetidin-3-yl)-ethanol and N-(2-hydroxyethyl)-N-(sulfanylmethyl)-ethaniminium, which underwent a further fragmentation to N-methyl-N-(2-oxoethyl)-methaniminium. Dithiazine fragmented to N-methyl-N-(2-oxoethyl)-methaniminium as well. The byproduct from this reaction is methanedithiol, which was not detected due to its low polarity. The experimental process involved the reaction of 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol(cas: 4719-04-4).SDS of cas: 4719-04-4

The Article related to reaction pathway hydrogen sulfide scavenging hydroxyethylhexahydrotriazine esi ms, Physical Organic Chemistry: Degradation Reactions, Including Mass Spectral Fragmentation and other aspects.SDS of cas: 4719-04-4

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