Alcohols-buliding-blocks

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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Alcohol – Wikipedia,
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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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On December 31, 2015, Cai, Zhuofu; Wang, Lihua; Yang, Hai-Jian; Zhao, Lu published an article.Recommanded Product: 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 [Erratum to document cited in CA159:706265]. And the article contained the following:

On page 72, Scheme 1 contained incorrect structures for compounds 2 and 3; the corrected scheme is given. On page 73, Table 2 contained several incorrect values and was missing a column; the corrected table is given. Addnl. solubility experiment details have been added to Section 2.3. The experimental process involved the reaction of 2-Methyl-2-propylpropane-1,3-diol(cas: 78-26-2).Recommanded Product: 78-26-2

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

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On April 21, 2021, Perez Pineiro, Rolando; Peeples, Craig A.; Hendry, Jonathan; Hoshowski, Jody; Hanna, Gabriel; Jenkins, Alyn published an article.Name: 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol The title of the article was Raman and DFT Study of the H2S Scavenger Reaction of HET-TRZ under Simulated Contactor Tower Conditions. And the article contained the following:

Raman spectroscopy is a rapid and noninvasive anal. technique used for the anal. of complex materials in complex matrixes. Herein, we report for the first time a combined Raman-DFT study to assign all the vibrational modes associated with the most important species involved in the H2S scavenger reaction of HET-triazine under simulated contactor tower conditions. In doing so, we have defined specific peaks or Raman identifier bands (RIBs) to get a complete reaction profile of the H2S removal process. Our methodol. was able to identify the presence of the elusive 2,2′-(1,3,5-thiadiazine-3,5-diyl)di(ethan-1-ol) (TDZ) intermediate and also provided evidence supporting the formation of the sulfur polymeric deposit from the 2-(1,3,5-dithiazinan-5-yl)ethan-1-ol (DTZ) byproduct. The experimental process involved the reaction of 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol(cas: 4719-04-4).Name: 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol

The Article related to dihydrogen sulfide scavenger reaction hexahydro trishydroxyethyl triazine raman spectrum, Physical Organic Chemistry: Degradation Reactions, Including Mass Spectral Fragmentation and other aspects.Name: 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol

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On April 9, 2020, Yang, Xingchuan; Wei, Genlei; Chen, Xiangmeng; Xu, Li; Liu, Guoji published an article.Application of 111-29-5 The title of the article was Liquid-Liquid Equilibrium Measurement and Correlation for the Ternary Systems (Dimethyl Succinate + 1,4-Butanediol)/(Dimethyl Glutarate + 1,5-Pentanediol)/(Dimethyl Adipate + 1,6-Hexanediol) + Water at Different Temperatures. And the article contained the following:

Liquid-liquid equilibrium (LLE) data for esters + diols + water ternary systems were measured at 101.3 kPa at four different temperatures, namely, 293.15, 303.15, 313.15, and 323.15 K. The Othmer-Tobias equation and the Hand equation were applied to examine the reliability of the LLE data in which both regression coefficients were higher than 0.98. The calculated distribution coefficients and separation factors were larger than 1, which means that it is feasible to extract the diols from the corresponding ester with water. In addition, NRTL and UNIQUAC models were applied to correlate the exptl. data, and the binary interaction parameters were obtained. The calculated root-mean-square deviation values show that both models are in good agreement with the exptl. data. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).Application of 111-29-5

The Article related to liquid equilibrium correlation ternary system, dimethyl succinate butanediol glutarate pentanediol adipate hexanediol water, Phase Equilibriums, Chemical Equilibriums, and Solutions: Phase Equilibriums, Solubility and other aspects.Application of 111-29-5

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Alcohol – Wikipedia,
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