Category: 111-87-5

Lu, Yao published the artcileEffect of 1-octanol on the stabilization of crude oil emulsions with hydrophobically modified polyacrylamide, Recommanded Product: n-Octanol, the main research area is octanol stabilization petroleum emulsion hydrophobically modified polyacrylamide.

The formation of a stable crude oil emulsion is of great significance for enhancing oil recovery in oilfield development. The effect of 1-octanol (C8OH) on the emulsifying properties of hydrophobically modified polyacrylamide (HMP) was studied based on a novel multiple light scattering method. The emulsions stabilized by different polymer systems were evaluated in terms of stability and rheol. properties. The obtained results show that the combined system of HMP + C8OH gives more stable emulsion with smaller droplet size compared to individual HMP. There is a strong bulk and interface interaction between HMP and C8OH for stabilizing emulsions, while such effect was observed neither between partially hydrolyzed polyacrylamide and 1-octanol nor between HMP and 1-octane. In the bulk phase of aqueous solution, the C8OH can be solubilized in the micro-domains of HMP, enhancing the intermol. association structure and slowing down the creaming rate of the corresponding emulsions. The adsorption at the oil-water interface of HMP can be enhanced and tighter interfacial film can be formed due to the formation of the hydrogen bond between HMP and C8OH. The obtained results are of obvious importance for designing the amphiphilic polymer-containing emulsion more suitable to improve oil recovery as well as for better understanding the self-assembling mechanism of amphiphilic polymers and fatty alcs.

Fuel published new progress about Emulsion stability. 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

Chen, Xiaoying published the artcileSolubility Determination and Thermodynamic Modeling of Buprofezin in Different Solvents and Mixing Properties of Solutions, Computed Properties of 111-87-5, the main research area is solubility thermodn model buprofezin solvent property solution.

In this work, the equilibrium solubility of buprofezin in different pure solvents was determined The mole solubility of buprofezin in these studied pure solvents increased with increasing temperature The solubility data decreased according to the following order: toluene > Et acetate > DMF > acetone > 1-octanol > 1-butanol > n-propanol > acetonitrile > isopropanol > ethanol > methanol > water. The results were correlated with four thermodn. models (the modified Apelblat equation, λh equation, NRTL model, and Wilson model), and the values of root-mean-square deviation (RMSD) and relative average deviation (RAD) are no >27.26 × 10-4 and 2.76%, resp. Due to the maximum values of RAD and RMSD were 1.58% and 3.77 × 10-4 in modified Apelblat equation, which indicate that it is a suitable model to describe the results. Besides, the mixing Gibbs energy, mixing enthalpy, and mixing entropy were computed. The values of ΔmixG are neg. in this experiment; therefore, the dissolution process is a spontaneous and favorable process, and the ΔmixS are all pos., which indicate the dissolving process is entropy favorable as well.

Journal of Chemical & Engineering Data published new progress about Excess free energy. 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

Katagiri, Mayu published the artcileMagneto-Plasmonic Co@Pt@Au Nanocrystals for Biosensing and Therapeutics, Name: n-Octanol, the main research area is magnetism plasmon resonance cobalt platinum gold nanocrystal biosensor therapeutic.

Multifunctional nanoparticles (NPs) exhibiting high magnetic property and plasmonic resonance are expected to be advanced nanomaterials which enable therapy, detection, and diagnosis simultaneously for medical applications. To achieve the practical performance of the multifunctional NPs, the precise design and synthesis are both required. In this work, considering the chem. stability and controllability, Co-Pt@Au core-shell NPs, which exhibit high magnetic property and plasmonic resonance, were theor. designed based on calculation and then exptl. synthesized using an alc. reduction method. Co-Pt NPs were uniformly synthesized using a technique which enables reduction control of Pt through the formation of a Pt-oleylamine complex. Moreover, depending on the Co/Pt ratio, the distribution of Co and Pt in a nanoparticle was precisely controlled, and as a result, Co-Pt alloy and Co@Pt core-shell NPs were individually prepared In particular, Co@Pt NPs exhibit a high magnetic property and are suitable for Au coating due to a small lattice mismatch. In fact, Au coating onto Co@Pt NPs was successfully performed via inhomogeneous nucleation, which results in Co@Pt@Au NPs exhibiting plasmonic response of Au with high magnetic property and being dispersed in water by ligand exchange for in vivo use. The developed synthetic method enables designed synthesis of complicated multicomponent nanoparticles through tunable reduction reaction and provides highly potential NPs for transport and sensing applications.

ACS Applied Nano Materials published new progress about Magnetic materials. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Name: n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhao, Man published the artcileMixtures of octanol and an ionic liquid: Structure and transport, Recommanded Product: n-Octanol, the main research area is structure transport mixture octanol ionic liquid.

Ionic liquids (ILs) with long alkyl substituents are amphiphilic, which leads to a bicontinuous liquid structure. The strongly interacting anionic and cationic head groups form a long range charge network, with the hydrocarbon tails forming a nonpolar domain. Such nonpolar domains have been shown to dissolve a variety of neutral organic solvents. In mixtures of ILs with solvents the neutral organic mols. residing in the nonpolar domains experience different environments and friction from the charged cations and anions. Thus, the neutral mols. diffuse much faster than predicted by hydrodynamic scaling using the average viscosity of the mixture In this work, we report studies on the structure and transport properties of mixtures of 1-octanol with the IL trihexyltetradecylphosphonium bis(trifluoromethylsulfonyl)imide (P6,6,6,14+/NTf2-). The majority of the atom fraction in the P6,6,6,14+ cation comprises four hydrocarbon substituents. The unique amphiphilic nature of ILs with the P6,6,6,14+ cation makes 1-octanol fully miscible with the IL at ambient temperatures X-ray scattering experiments show that the IL structure persists in the mixtures for 1-octanol mole fractions as large as xoct = 0.90. The self-diffusion coefficients of the three mol. species in the mixtures were measured by NMR experiments The self-diffusion of the P6,6,6,14+ cation is well described by the Stokes-Einstein equation, while the diffusivity of the NTf2- anion is slightly lower than the hydrodynamic prediction. The measured diffusivities of octanol in these mixtures are 1.3-4 times higher than the hydrodynamic predictions. (c) 2020 American Institute of Physics.

Journal of Chemical Physics published new progress about Activation energy. 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

Meng, Xiaorong published the artcileStudy on stable mass transfer and enrichment of phenol by 1-octanol/kerosene/polyvinyl chloride polymer inclusion membrane, SDS of cas: 111-87-5, the main research area is octanol polyvinyl chloride kerosene liquid paraffin phenol mass transfer; 1-Octanol; Mass transfer; Phenol; Polymer inclusion membrane; Stability.

A polymer inclusion membrane (PIM) that contains a polyvinyl chloride (PVC) polymer matrix and 1-octanol (OCT) as specific carrier (PO-PIM) was prepared to investigate the mass transfer behavior of phenol in aqueous solutions Results showed that the mass transfer behavior of the PO-PIM for phenol conformed to the first-order kinetics. In addition, the mass transfer efficiency for phenol reached the maximum when the OCT content was 82.8 wt%. The mass transfer activation energy (Ea) was 14.46 kJ mol-1, which indicated that intramembranous diffusion was the main controlling factor in the mass transfer process. The introduction of hydrophobic additives, such as kerosene, liquid paraffin and vegetable oil, into the PO-PIM could remarkably improve its stability. In an aqueous solutions of phenol ranging from 0 mg L-1 to 9000 mg L-1, the initial flux (J0) of kerosene/PVC/OCT-PIM (KPO-PIM) was pos. correlated with the initial concentration of phenol. For a stripping solution with a feed solution pH of 2.0 and a sodium hydroxide concentration of 0.1 mol L-1, the maximum permeability coefficient during stable mass transfer reached 12.55μm s-1. At a mass transfer area of 3.14 cm2, an enrichment factor (EF) of 3.5 for 200 mg L-1 of phenolic aqueous solution was achieved within 48 h through KPO-PIM.

Environmental Pollution (Oxford, United Kingdom) published new progress about Activation energy. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, SDS of cas: 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Maghsoudi, Majid published the artcileDevelopment of electrically assisted solvent bar microextraction followed by high performance liquid chromatography for the extraction and quantification of basic drugs in biological samples, SDS of cas: 111-87-5, the main research area is solvent bar microextraction high performance liquid chromatog extraction; Basic drugs; Biological sample; Electrically assisted solvent bar microextraction; Plasma; Urine.

In this study, a new extraction procedure is introduced based on elec. assisted solvent bar microextraction In the first step, the analytes are transferred from sample solution to the hollow fiber supported organic solvent. After that, with the aid of an elec. field, the analytes migrated into the aqueous extractant. The proposed approach was used to extract the three basic drugs (including lidocaine, diltiazem, and propranolol) from the plasma and urine samples. Under the optimized condition, (the supported organic solvent: 1-octanol, stirring rate: 300 rpm, pH of sample solution: 12.0, salt concentration: 2.0% (w/v), extraction time: 15 min, aqueous extractant: (30μL, 100 mM HCl), back-extraction time: 2 min, back-extraction voltage: 100 V), the proposed procedure presented wide linearities with coefficients of determination more than 0.992 over a concentration range of 5.0-1000 ng mL-1. The limit of detection was also determined in the range of 0.5 to 5.0 ng mL-1, repeatability (intra-day) was between 3.3 and 11.1% (n = 4), and reproducibility (inter-day) was between 4.3 and 14.6% (n = 4 days). It was indicated that the proposed approach could effectively extract the analytes from the plasma and urine samples, and the relative recoveries were between 90.2 and 105.6%, indicating the validity of this method.

Journal of Chromatography A published new progress about Biological samples. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, SDS of cas: 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

AL-Hashimi, Nabil N. published the artcileCetyl-alcohol-reinforced hollow fiber solid/liquid-phase microextraction and HPLC-DAD analysis of ezetimibe and simvastatin in human plasma and urine, Synthetic Route of 111-87-5, the main research area is ezetimibe simvastatin cetyl alc hollow fiber SLPME HPLC DAD; HPLC-DAD; cetyl alcohol; ezetimibe and simvastatin; plasma; reinforced solid/liquid microextraction; urine.

A new cetyl-alc.-reinforced hollow fiber solid/liquid-phase microextraction (CA-HF-SLPME) followed by high-performance liquid chromatog.-diode array detection (HPLC-DAD) method was developed for simultaneous determination of ezetimibe and simvastatin in human plasma and urine samples. To prepare the CA-HF-SLPME device, the cetyl-alc. was immobilized into the pores of a 2.5 cm hollow fiber micro-tube and the lumen of the micro-tube was filled with 1-octanol with the two ends sealed. Afterwards, the prepared device was introduced into 10 mL of the sample solution containing the analytes with agitation. Under optimized conditions, calibration curves plotted in spiked plasma and urine samples were linear in the ranges of 0.363-25/0.49-25 μg L-1 for ezetimibe/simvastatin and 0.193-25/0.312-25 μg L-1 for ezetimibe/simvastatin in plasma and urine samples, resp. The limit of detection was 0.109/0.174 μg L-1 for ezetimibe/simvastatin in plasma and 0.058/0.093 μg L-1 for ezetimibe/simvastatin in urine. As a potential application, the proposed method was applied to determine the concentration of selected analytes in patient plasma and urine samples after medication and satisfactory results were achieved. In comparison with reference methods, the CA-HF-SLPME-HPLC-DAD method demonstrates considerable potential in the biopharmaceutical anal. of selected drugs.

Biomedical Chromatography published new progress about Biopharmaceuticals. 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

Du, Weichao published the artcileSynthesis of cyclohexanone-alcohol hemiketals and evaluation as flow improver for waxy crude oil, Quality Control of 111-87-5, the main research area is cyclohexanone alc hemiketal waxy crude oil flow improver.

In this paper, four novel cyclohexanone-alc. hemiketals (KL-1, KL-2, KL-3, KL-4) as waxy crude oil flow improver have been prepared by cyclohexanone and 1-pentanol, 1-Hexanol, 1-heptanol, 1-octanol. Evaluation results demonstrate the hemiketal compounds have obvious effect on the viscosity and pour point of Henan crude oil. DSC anal. showed that waxing point and waxing peak decreased to a certain degree in 0.05% hemiketal solutions Wax crystal morphol. anal. indicated the four hemiketals played a role of nucleation in the process of waxy crude oil decoagulation, and in that way acts as waxy crude oil flow improver.

Petroleum Science and Technology published new progress about Crystal morphology. 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

Gu, Jianhong published the artcileSolubility and Model Correlation of Amprolium Hydrochloride in Pure Solvent at the Temperature Range of 273.15-313.15 K, Safety of n-Octanol, the main research area is solubility model correlation amprolium hydrochloride pure solvent.

The solubility data of amprolium hydrochloride in 12 pure solvents including methanol, ethanol, n-propanol, isopropanol, n-butanol, i-butanol, n-octanol, acetone, Et acetate, 1,4-dioxane, acetonitrile, and cyclohexanone was determined at temperature range from T = 273.15 to 313.15 K. The maximum value was obtained in methanol (x = 12.99 × 10-4 at T = 313.15 K, in mole fraction) and the min. data in n-octanol (x = 2.0 × 10-6 at T = 273.15 K, in mole fraction). As expected, it increased with rising temperature in all of the selected solvents. The values from high to low obeyed the following sequence: methanol > acetone > cyclohexanone > ethanol > 1,4-dioxane > n-propanol > Et acetate > n-butanol > isopropanol > i-butanol > acetonitrile > n-octanol. Moreover, the results of IR spectrogram indicated that there was no polymorph transformation or solvate formation during the determination process. The modified Apelblat equation and λh equation were applied to correlate the solubility data. The maximum values of the root mean square deviation (RMSD) and relative average deviation (RAD) were 4.02 × 10-5 (in methanol) and 4.77% (in ethanol), resp. Moreover, two statistical values selected in modified Apelblat equation are significantly smaller than those in λh equation. Therefore, modified Apelblat equation is more suitable to correlate the solute solubility in selected solvents. More importantly, the solubility data will be significant to the engineers and researchers before recrystallization

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

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kazmierczak, Kamila published the artcileActivity of heterogeneous supported Cu and Ru catalysts in acceptor-less alcohol dehydrogenation, Application In Synthesis of 111-87-5, the main research area is copper ruthenium alc dehydrogenation catalyst.

Acceptor-less alc. dehydrogenation reaction allows the co-production of added-value carbonyl compounds and H2 from alcs. Focusing on supported Ru and Cu catalysts, we evaluated the support effect on the dehydrogenation of 2-octanol and 1-octanol and identified the side products as resulting from aldolisation coupling. The most active and selective catalysts were then tested on the aliphatic vicinal-diol octan-1,2-diol and the highest conversion was reached using Cu/ZrO2 (60%) with a high selectivity (94%) towards 1-hydroxy-2-octanone.

Catalysis Communications published new progress about Aldol condensation. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Application In Synthesis of 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts