Category: 111-87-5

Moon, Jeong-Yi published the artcileSeparation of scandium from yttrium in aqueous chloride media by solvent extraction with an acidic phosphinate extractant, Application of n-Octanol, the main research area is scandium yttrium separation chloride solvent extraction acidic phosphinate extractant.

Separation of scandium (Sc) from yttrium (Y) in aqueous chloride media was investigated by solvent extraction with bis(2,4,4-trimethylpentyl)phosphinic acid (Cyanex 272). Conventional slope anal. method revealed the extraction equilibrium formulation of the metals. Sc is more strongly extracted than Y by Cyanex 272, and the separation factor of the metals is quite high at 2.82 × 105. Complete stripping of Sc from the loaded organic solution of Cyanex272 could not be achieved, even with a high concentration of hydrochloric acid. Addition of 1-octanol as a modifier to the organic phase decreased the extractability of Sc, leading to successful stripping of Sc from the loaded organic solution

Solvent Extraction Research and Development, Japan published new progress about pH. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Application of n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Li, Miaosi published the artcileAutomated Femtoliter Droplet-Based Determination of Oil-Water Partition Coefficient, Application of n-Octanol, the main research area is femtoliter droplet oil water partition coefficient.

The oil-water partition coefficient of organic compounds is an essential parameter for the determination of their behaviors in environments, food, drug delivery, and biomedical systems, just to name a few. In this work, we establish a highly efficient approach to quantify the partition/distribution coefficient using surface femtoliter droplets. In our approach, droplets of 1-octanol were produced on the surface of a solid substrate in contact with the flow of an aqueous solution of the analyte. The analyte was rapidly enriched in the droplets from the flow and reached the partition equilibrium in a few seconds. The entire procedure was automated by continuous solvent exchange, and the analyte partition in the droplets was quantified from the in situ UV-vis spectrum collected by a microspectrophotometer. Our approach was validated for several substances with the octanol-water partition/distribution coefficient ranging from -1.5 to 4, where our results were in good agreement with the values reported in the literature. This method took ∼3 min to detect one analyte with the volume of the organic solvent at ∼50 μL. Thus, our surface droplet platform can greatly minimize the consumption of both solvent and analytes and can shorten the time for the determination of the partition of new compounds, which overcomes the drawbacks of the traditional shake-flask method and presents excellent reproducibility, high accuracy, cost-effectiveness, and labor-saving operation. The highly efficient micro/nanoextn., partition, and real-time detection enabled by the surface droplets has the potential for many other high-throughput applications.

Analytical Chemistry (Washington, DC, United States) published new progress about Drops. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Application of n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Linnartz, Christian J. published the artcileAbout a Membrane with Microfluidic Porous-Wall Channels of Cylindrical Shape for Droplet Formation, Formula: C8H18O, the main research area is microfluidic droplet formation.

A low-energy emulsification process is hollow-fiber emulsification. In this process, the lumen diameter of the membrane mostly determines the droplet size. To gain smaller droplets, approaches for downsizing the inner diameter of membranes have to be carried out. In this work, we describe a new method for the fabrication of parallel microfluidic porous-wall channels of a homogeneous cylindrical shape with lumen diameters down to 7μm. Parallel and sym. porous-wall channels are induced into polyvinylidene fluoride membranes during the casting process. The technique comprises liquid-induced phase separation and phase-separation micromolding using thin glass and carbon fibers as molds and an inhouse designed tool to position the fibers. The channel positioning and alignment are verified within this work. We show and investigate the droplet formation in these porous-wall channels via hollow-fiber emulsification. The formed droplets are very small in diameter and size distribution. The droplet formation at varying flow rates and channel diameters is examined in detail. Moreover, an area of sufficient operating conditions is given using Weber and capillary numbers As a numbering-up approach, we show the simultaneous formation of spherical droplets in two parallel channels. With the proposed membrane fabrication using micromolding, we push the downscaling approach of hollow-fiber emulsification to lower micron ranges of the channel diameter With these small channels, droplets with a diameter down to 25μm were produced, which are more attractive for most applications.

Langmuir published new progress about Drops. 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

Sabatino, Spencer J. published the artcilePredicting octanol/water partition coefficients using molecular simulation for the SAMPL7 challenge: comparing the use of neat and water saturated 1-octanol, Category: alcohols-buliding-blocks, the main research area is octanol water drug like compound partition mol simulation saturation; Partition coefficient; SAMPL7; Solvation free energy; log P.

Blind predictions of octanol/water partition coefficients at 298.15 K for 22 drug-like compounds were made for the SAMPL7 challenge. The octanol/water partition coefficients were predicted using solvation free energies computed using mol. dynamics simulations, wherein we considered the use of both pure and water-saturated 1-octanol to model the octanol-rich phase. Water and 1-octanol were modeled using TIP4P and TrAPPE-UA, resp., which have been shown to well reproduce the exptl. mutual solubility, and the solutes were modeled using GAFF. After the close of the SAMPL7 challenge, we addnl. made predictions using TIP4P/2005 water. We found that the predictions were sensitive to the choice of water force field. However, the effect of water in the octanol-rich phase was found to be even more significant and non-negligible. The effect of inclusion of water was addnl. sensitive to the chem. structure of the solute.

Journal of Computer-Aided Molecular Design published new progress about Drugs. 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

Zawala, Jan published the artcileSynergism between Cationic Alkyltrimethylammonium Bromides (CnTAB) and Nonionic n-Octanol in the Foamability of Their Mixed Solutions, COA of Formula: C8H18O, the main research area is alkyltrimethylammonium bromide octanol foamability.

In this study, the foamability of pure solutions of alkyltrimethylammonium bromides (CnTAB with n = 8, 12, and 16) of various concentrations and their mixtures with n-octanol was studied. It was found from the results that n-octanol behaved as a foamability enhancer, depending on the CnTAB solution concentration A similar foam height was obtained in CnTAB/octanol systems compared to pure CnTAB solutions with a greatly reduced amount of cationic surfactants. This synergistic effect between CnTAB and n-octanol was quite significant, and it could be observed for systems where the CnTAB concentration differed even by two orders of magnitude. Such behavior was observed only below some characteristic concentration of CnTAB, called a critical synergistic concentration (CSC), above which the synergistic effect was either no longer visible or significantly reduced. Moreover, it was found that the presence of n-octanol affected only the solution foamability without significant changes in the stability of the foams. A possible origin of this effect was analyzed and discussed on the basis of the magnitude of the surface elasticity forces induced in the foam films during the foam generation period and while operating during foam decay.

Industrial & Engineering Chemistry Research published new progress about Foams. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, COA of Formula: C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Hossain, Yousuf Md. published the artcileEffluent-free deep dyeing of cotton fabric with cacao husk extracts using the Taguchi optimization method, Safety of n-Octanol, the main research area is cotton fabric cacao husk extract deep dyeing Taguchi optimization.

Textile dyehouses are under scrutiny because they discharge colored and hazardous effluents to waterways. There is a need to develop an alternative dyeing system that does not produce any hazardous effluent. The waterless dyeing method could be a viable eco-friendly alternative to the traditional aqueous dyeing method. In this work, cacao husk extracts were used as a natural dye in the decamethylcyclopentasiloxane (D5) medium for the dyeing of cotton fabric, and subsequently, the dyed cotton was treated by a fixation treatment with a cationic dye-fixing agent in the D5 medium. The cotton fabric dyed with cacao husk extracts exhaustion in the waterless D5 medium exhibited better exhaustion, fixation rate, color strength (K/S), and colorfastness to washing and rubbing compared to the fabric dyed with the same extracts using the conventional aqueous dyeing and dye-fixing methods. The dye exhaustion percentage and the dye fixation rate were 95.6% and 94.8% in the D5 medium resp., which is significantly higher in comparison to a 48.2% dye exhaustion percentage and a 35.3% dye fixation rate in the conventional water medium. An orthogonal array design (L9) was adopted to optimize the dyeing conditions with respect to exhaustion percentage. The results indicated that the dyebath temperature was the most important factor for achieving the optimal dye exhaustion, and dyeing time also showed considerable effects. Linear regression was used to predict the exhaustion percentage, and the resulting p value of 0.000 demonstrated that a strong coefficient was proven among all selected factors. This study has demonstrated that dyeing of cotton fabric with cacao husk extracts in the D5 dyeing system can be a viable method for the textile industry with minimal environmental pollution.

Cellulose (Dordrecht, Netherlands) published new progress about Color. 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

Li, Mengqi published the artcileDevelopment of a flavor fingerprint by HS-GC-IMS with PCA for volatile compounds of Tricholoma matsutake Singer, Recommanded Product: n-Octanol, the main research area is Tricholoma flavor; Characteristic volatiles fingerprinting; Headspace-gas chromatography–ion mobility spectrometry (HS-GC–IMS); Principal component analysis (PCA); Tricholoma matsutake Singer; Volatile compounds.

The flavor fingerprint of Tricholoma matsutake Singer was developed and volatile compounds were investigated by HS-GC-IMS fingerprinting combining with PCA. A total of 25 typical target compounds were identified. The differences of flavor compounds in pileus and stipe of Tricholoma matsutake Singer from different areas were observed After drying, the concentration of C8 compounds, including 3-octanone, 3-octanol, 1-octen-3-one and 1-octanol, decreased, while the concentration of methanol and 1-pentanol increased. Subsequently, PCA was performed based on the signal intensity of the identified violate compounds, and the results clearly showed that the samples in a relatively independent space would be well distinguished. Combining the signal intensity of the identified violate compounds by HS-GC-IMS and PCA, the samples from different portions of Tricholoma matsutake Singer and different areas were distinguished. The results showed that the flavor fingerprint of Tricholoma matsutake Singer were established by HS-GC-IMS and PCA based on the identified volatile compounds

Food Chemistry published new progress about Flavor. 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

Vockenberg, Thorben published the artcileThe sorption behaviour of amine micropollutants on polyethylene microplastics – impact of aging and interactions with green seaweed, Category: alcohols-buliding-blocks, the main research area is amine micropollutants polyethylene microplastics seaweed.

Microplastics are ubiquitous in the environment. Due to still rising global production, the emission of polymers into the environment and the abundance of microplastics have increased accordingly. The hydrophobic surfaces of the particles can sorb chem. pollutants, therefore providing a potential pathway to accumulation by organisms. In this study, important industrial additives of emerging environmental concern, such as hydrophobic aromatic amines, were studied in relation to their sorption behavior on high-d. polyethylene and low-d. polyethylene microplastics. Diphenylamine (log POW (logarithmic octanol-water partition coefficient) = 3.5) showed strong sorption, carbamazepine (log POW = 2.5) showed moderate sorption, and aniline (log POW = 0.9) showed no detectable sorption behavior. Importantly, the sorption capacity increased with increasing salinity, leading to strong implications for ocean systems, as an elevated uptake of pollutants. Moreover, our study demonstrates that the ecotoxicol. effects of diphenylamine on the growth of the seaweed Ulva (sea lettuce, Chlorophyta) were reduced in the presence of microplastics. As the plastic particles withdrew enough contaminants from solution, even toxic levels of diphenylamine (c = 10-4 M) became tolerable for the algae. However, the pollutants initially sorbed on the microplastics can be released again at a later point in the process, thus having delayed pollution potential.

Environmental Science: Processes & Impacts published new progress about Algae. 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

Chitarrini, Giulia published the artcileAroma investigation of new and standard apple varieties grown at two altitudes using gas chromatography-mass spectrometry combined with sensory analysis, COA of Formula: C8H18O, the main research area is apple grown aroma gas chromatog mass spectrometry; HS-SPME-GC-MS; Malus domestica; flavor; sensory analysis.

The aromatic profile of apples constitutes important information for the characterization and description of local products. Apple flavor is determined by perception in mouth and aroma; while the first is mainly defined by sugars and organic acids, aroma is a complex mixture of many volatile organic compounds (VOCs) whose composition is often specific to the variety. Headspace-solid phase microextraction gas chromatog. coupled with mass spectrometry (HS-SPME-GC-MS) allows for the detection of detailed information of volatile constituents. In this study, eleven apple varieties (Braeburn, Fuji, Gala, Golden Delicious, Coop 39-Crimson Crisp, Dalinette-Choupette, Fujion, CIV323-Isaaq, Coop43-Juliet, SQ159-Natyra, UEB32642-Opal) grown in two pedoclimatic locations at different altitudes in South Tyrol (Italy) (ca. 225 m and ca. 650 m a.s.l.) were investigated. Thirty-eight VOCs were identified and combined with sensory anal. results (from 11 trained panelist) to characterize the aroma of new and standard apple varieties with a special focus on pedoclimatic location differences. The study shows strong diversification of the varieties based on their VOC profiles and sensory attributes, as expected. Moreover, investigating how the pedoclimatic location at different altitudes can influence the apple aroma profile, we identified twelve VOCs involved in these differences and provided a deeper investigation on how different altitudes can influence the apple aroma composition and perceptions combining the anal. and sensory parameters.

Molecules published new progress about Apple. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, COA of Formula: C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Yang, San-dong published the artcileDetermination of benzo(a)pyrene in fried and baked foods by HPLC combined with vesicular coacervative supramolecular solvent extraction, Recommanded Product: n-Octanol, the main research area is fried baked food benzo a pyrene HPLC SUPRAS; Benzo(a)pyrene; Green chemistry; Liquid chromatography-fluorescence detection; Supramolecular solvent (SUPRAS).

A simple, rapid and low-cost determination method of benzo(a)pyrene in fried and baked foods was proposed by high performance liquid chromatog. combined with vesicular coacervative supramol. solvent (SUPRAS) extraction The vesicular coacervate was composed of 1-octanol and tetrabutylammonium bromide. 200 mg of dried samples with 600 μL SUPRAS could be mixed to extract benzo(a)pyrene. Neither evaporation nor further clean-up steps for the extracts were needed. The overall sample treatment took approx. 30 min, and several samples could be simultaneously treated using conventional lab equipment. Then, benzo(a)pyrene was analyzed via liquid chromatog.-fluorescence detection. Parameters affecting the extraction efficiency were investigated and optimized. The results showed good linearity of benzo(a)pyrene with the coefficients of determination (R2) of more than 0.9999 in the range of 0.1-50.0 μg/kg. The limit of detection of the method was 0.11 μg/kg. Recoveries for spiked samples in the range of 1-10 μg/kg were between 89.86 and 100.01%, with relative standard deviations from 1.20 to 3.20%. Benzo(a)pyrene was present in food samples (including instant noodles, biscuits, rice crust and fried bread stick) at concentrations in the range of 0.08-0.39 μg/kg according to the proposed method. The proposed pretreatment method significantly reduces the anal. time. Furthermore, the solventless approach is in accordance with the green chem. development trend and has significant application prospects.

Journal of Food Science and Technology (New Delhi, India) published new progress about Baking. 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