Category: 111-87-5

Almasi, Mohammad published the artcileKirkwood-Buff Integrals, Excess Volume, and Preferential Solvation in Pentanoic Acid/(C5-C10) 1-Alkanol Binary Mixtures, Product Details of C8H18O, the main research area is Kirkwood Buff integral excess volume solvation pentanoic acid alkanol.

In order to study the nature, type, and magnitude of interactions in the binary mixtures of pentanoic acid and a series of 1-alkanols from 1-pentanol up to 1-decanol, Kirkwood integrals along with the exptl. methods have been used and reported at T = 298.15 K. Neg. values of VEm, Gii, Gij, Δnii, Δnij, and δii and pos. values of Gij, Δnij, and δij indicate the fact that in the mixtures the tendency of the unlike mol. components to form the new interactions and stay together is much higher than the pure state. Investigating the changes in the calculated quantities for different mixtures shows that with the increase in the length of the alc. chain the tendency of the heterogeneous mols. to interact with each other decreases. Variations in the VEm values are in the same direction as the Kirkwood integrals, and mentioned data for binary systems are reported for the first time.

Journal of Chemical & Engineering Data published new progress about Density. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Product Details of C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Almasi, Mohammad published the artcileThermodynamic study of interactions between 1-alkanol and butanone, Formula: C8H18O, the main research area is thermodn Kirkwood Buff model alkanol butanone mixture solvation structure.

To obtain the new perspectives on the mol. interactions in the binary systems of butanone and a homologous series of 1-alkanol from 1-pentanol up to 1-decanol, these mixtures were studied using the Kirkwood-Buff (KB) formalism and preferential solvation anal. The results were confirmed using the exptl. excess molar volumes. KB integrals Gij, the excess or deficit number Δnij, and solvation coefficients δij are reported here. Anal. of obtained data regarding the KB formalism and preferential solvation reveals that interactions strength in mixtures depends on the butanone concentration and size of 1-alkanol. Also, interactions between similar mols. are remarkable and become stronger as the length of the alc. increases. Furthermore, mixtures structure was studied using the concentration-concentration structure factor, SCC(0). Results from application of this parameter show that the homo-coordination occurs in solutions Steric effects lead to the stronger orientations in the mentioned mixtures

Chemical Physics published new progress about Density. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Formula: C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Bardestani, Raoof published the artcileThe investigation of stoichiometry and kinetics of cerium (IV) solvent extraction from sulfate medium by Cyanex 272 and 301 using single drop column, Recommanded Product: n-Octanol, the main research area is cerium solvent extraction sulfate medium stoichiometry kinetics Cyanex.

In the present study, the solvent extraction of cerium (IV) from sulfate medium was investigated by Cyanex 272 and 301. The main objective was to increase our understanding of the behavior of analogous extractants, but different in donor atom, which were achieved by batch and kinetics investigations. This allows better selection of extractants for similar approaches in future works. The investigation of extraction kinetics using single drop columns provides this work with a simpler approach in term of overall procedure for the separation of cerium ions from aqueous solutions, which allows finding how exptl. conditions control the rate of reaction. The effects of parameters such as pH, extractant concentration, organic to aqueous volume, and temperature were studied under batch conditions. The complete extraction of 200 mg L-1 Ce (IV) at pH of 4 was obtained either by Cyanex 272 or 301 diluted in kerosene. Results shows that regarding the structural substitution of oxygen with sulfur, Cyanex 272 has a better performance in a lower concentration, while Cyanex 301 shows higher extraction percentage at lower pH. The extraction by Cyanex 272 and 301 was exothermic and endothermic, resp. Results of reaction kinetics revealed that by considering the correction of droplets residence time, the rate of extraction either by Cyanex 272 or 301 is independent of the height of the column. Thus, the effects of extractants and cerium concentrations along with the pH of aqueous solution allowed finding the rate of extraction The cerium mass flux increased by droplet diameter, indicating the contribution of mass diffusion in the extraction

Chemical Engineering Research and Design published new progress about Kerosene Role: NUU (Other Use, Unclassified), USES (Uses). 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Recommanded Product: n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kaithal, Akash published the artcileRuthenium(II)-catalyzed β-methylation of alcohols using methanol as C1 source, Computed Properties of 111-87-5, the main research area is methylated alc green preparation regioselective; alc methanol methylation ruthenium catalyst.

Selective introduction of Me branches into the carbon chains of alcs. could be achieved with low loadings of ruthenium precatalyst [RuH(CO)(BH4)(HN(C2H4PPh2)2)] (Ru-MACHO-BH) using methanol both as methylating reagent and as reaction medium. A wide range of structurally divers alcs. was β-methylated with excellent selectivity (>99 %) in fair to high yields (up to 94 %) under standard conditions for generation of methylated primary alcs. RCH(Me)CH2OH [R = Me, Ph, 4-MeOC6H4, etc.] and secondary alcs. such as ArCH(OH)CH(Me)2 [Ar = Ph, 4-MeC6H4, 2-naphthyl, etc.] and turnover numbers up to 18,000 could be established. The overall reaction rate of complex catalytic network appeared to be governed by interconnection of individual subcycles through availability of reactive intermediates. The synthetic procedure opened pathways to important structural motifs following green chem. principles.

ChemCatChem published new progress about Green chemistry. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Computed Properties of 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Klacsova, Maria published the artcileThermodynamic and structural study of DMPC-alkanol systems, Quality Control of 111-87-5, the main research area is thermodn structural property dimyristoylphosphatidylcholine alkanol system DSC.

The thermodn. and structural behaviors of lamellar dimyristoylphosphatidylcholine-alkanol (abbreviation DMPC-CnOH, n = 8-18 is the even number of carbons in the alkyl chain) systems were studied by using DSC and SAXD/WAXD methods at a 0-0.8 CnOH : DMPC molar ratio range. Up to n ≤ 10 a significant biphasic effect depending on the main transition temperature tm on the CnOH concentration was observed Two breakpoints were revealed: turning point (TP), corresponding to the min., and threshold concentration (cT), corresponding to the end of the biphasic tendency. These breakpoints were also observed in the alkanol concentration dependent change in the enthalpy of the main transition ΔHm. In the case of CnOHs with n > 10 we propose a marked shift of TP and cT to very low concentrations; consequently, only increase of tm is observed A partial phase diagram was constructed for a pseudo-binary DMPC-C12OH system. We suggest a fluid-fluid immiscibility of the DMPC-C12OH system above cT with a consequent formation of domains with different C12OH contents. At a constant CnOH concentration, the effects of CnOHs on ΔHm and bilayer repeat distance were found to depend predominantly on the mismatch between CnOH and lipid chain lengths. Observed effects are suggested to be underlined by a counterbalancing effect of interchain van der Waals interactions and head-group repulsion.

Physical Chemistry Chemical Physics published new progress about Bilayer films. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Quality Control of 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Almasi, Mohammad published the artcileDensities and Viscosities of Binary Mixtures Containing Methyl Isobutyl Ketone and (C6-C10) 1-Alkanol, Category: alcohols-buliding-blocks, the main research area is density viscosity solubility methyl isobutyl ketone alkanol binary mixture.

In the present study, to identify the governing intermol. interactions in the binary mixtures of Me iso-Bu ketone (MIBK) and 1-alkanols (1-hexanol up to 1-decanol), exptl. values of d. and viscosity at temperatures (293.15 to 323.15 K) were reported. Excess molar volumes (VmE) and viscosity deviations (Δη) for mentioned binary mixtures were calculated and correlated by the Redlich-Kister polynomial expansions. It was found that increasing the alkyl chain of alc. boosts the strength of intermol. forces. Also, to obtain more information about the governing forces in the binary mixtures, values of Hansen solubility parameter distance between two mols., Ra, were calculated, and based on the obtained results, the tendency of alc. to dissolve in the MIBK media was discussed.

Journal of Chemical & Engineering Data published new progress about Binary mixtures, liquid. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Almasi, Mohammad published the artcileMeasurement of the Density and Viscosity of Diisopropyl Ether and 1-Alkanol Mixtures at Various Temperatures, Related Products of alcohols-buliding-blocks, the main research area is density viscosity diisopropyl ether binary mixture alkanol pentanol decanol.

The current study was aimed to investigate intermol. forces in six binary associating systems containing diisopropyl ether (DIPE) and normal alcs. (1-pentanol to 1-decanol) at 293.15-323.15 K. The d. and viscosity of binary fluids were measured, and excess functions and partial volumes were calculated Excess volumes and deviation in the viscosity are neg. for all the above solutions Intermol. forces in mixtures are adjusted by mol. packing, dispersion forces, and hydrogen bonding. According to the findings, lengthening the alc. chain increases intermol. forces between mols. of different types. Most d. and viscosity values are new and have not been reported in scientific papers yet.

Journal of Chemical & Engineering Data published new progress about Binary mixtures, liquid. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Pan, Mingzhang published the artcileImpact of carbon chain length of alcohols on the physicochemical properties and reactivity of exhaust soot, Synthetic Route of 111-87-5, the main research area is impact carbon chain alc physicochem property reactivity exhaust soot; Different alcohols-diesel fuels; Morphology; Nanostructure; Oxygenated functional groups.

Particle is the main pollutant in diesel engine exhaust, which seriously endangers human health and the atm. environment. The use of alc. fuels in diesel engines can effectively reduce particle emissions, but alc. fuels with different carbon chain lengths will affect the generation process of particles, which in turn changes the physicochem. properties and oxidation characteristics of the particles. Therefore, it is particularly important to study the properties of particle emitted by diesel engines fueling alc. fuels with different carbon chain lengths. The physicochem. properties of soot emitted from com. diesel engines were studied by thermogravimetric analyzer, HRTEM (high-resolution TEM), and XPS (XPS) in this paper, resp. The diesel engine used alc.-diesel blends of different carbon chain lengths with the same oxygen content as fuels, such as methanol/diesel blend (M10), n-butanol/diesel blend (NB25), and n-octanol/diesel blend (NO45), and pure diesel fuel was used as a reference The use of alcs. reduced the fractal dimension (Df) of particles, and the NB25 particles had the smallest Df. Moreover, the particles of blended fuels had smaller primary particle diameter (dp) compared to pure diesel. However, with the use of short-chain to long-chain alcs., an increasing tendency of dp was observed In terms of the nanostructure, as the use of short-chain to long-chain alcs., the La (fringe length) increased, both the d (fringe separation distance) and Tf (fringe tortuosity) reduced, which was not favorable for the oxidation of the particles. In addition, in terms of oxygenated surface functional groups (SFGs), the C=O group occupied a higher proportion in most working conditions relative to the groups of C-O and COO. Further anal. showed that the dp and nanostructure had more influence on the oxidation behavior of soot than Df and oxygenated SFGs.

Science of the Total Environment published new progress about Diesel exhaust gases. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Synthetic Route of 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

He, Jun published the artcileA new type of triptycene-based stationary phases with alkylated benzimidazolium cations for gas chromatographic separations, Computed Properties of 111-87-5, the main research area is triptycene benzimidazolium cation gas chromatog stationary phase separation.

Favorable physicochem. properties and unique mol. recognition capability endow triptycene-based materials with good potential as stationary phases for gas chromatog. (GC). This work reports a new type of triptycene-based materials functionalized by three benzimidazolium cations with different peripheral alkyl lengths (denoted as TP-3Bim-5C and TP-3Bim-12C) and their GC separation performance. As a result, they shared high resolving performance for the naphthalene isomers but differed for the benzene derivatives with varying polarity. Moreover, their capillary columns exhibited good repeatability and thermal stability. This work presents a facile strategy for tailoring the selectivity of the TP-based stationary phases and demonstrates their promising future for chromatog. anal.

Chinese Chemical Letters published new progress about Gas chromatographic capillary columns. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Computed Properties of 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kaithal, Akash published the artcileManganese(I)-Catalyzed β-Methylation of Alcohols using Methanol as C1 Source, Computed Properties of 111-87-5, the main research area is manganese catalyzed methylation biomass alc methanol solvent safety; alcohols; hydrogen borrowing; manganese catalysis; methanol; methylation.

Highly selective β-methylation of alcs. was achieved using an earth-abundant first row transition metal in the air stable mol. manganese complex [Mn(CO)2Br[HN(C2H4PiPr2)2]] (I) ([HN(C2H4PiPr2)2]=MACHO-iPr). The reaction requires only low loadings of I (0.5 mol %), methanolate as base and MeOH as methylation reagent as well as solvent. Various alcs. were β-methylated with very good selectivity (>99%) and excellent yield (up to 94%). Biomass derived aliphatic alcs. and diols were also selectively methylated on the β-position, opening a pathway to “”biohybrid”” mols. constructed entirely from non-fossil carbon. Mechanistic studies indicate that the reaction proceeds through a borrowing hydrogen pathway involving metal-ligand cooperation at the Mn-pincer complex. This transformation provides a convenient, economical, and environmentally benign pathway for the selective C-C bond formation with potential applications for the preparation of advanced biofuels, fine chems., and biol. active mols. Of note, safety advice is recommended for high-pressure experiments due to significant risk with procedures and in conjunction with the use of suitable equipment.

Angewandte Chemie, International Edition published new progress about Aliphatic alcohols Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Computed Properties of 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts