Tag: M.W=100-200

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 3452-97-9, Name is 3,5,5-Trimethylhexan-1-ol, formurla is C9H20O. In a document, author is Wan, Li, introducing its new discovery. HPLC of Formula: C9H20O.

Calcium-induced-gel properties for low methoxyl pectin in the presence of different sugar alcohols

The gel behavior of low methoxyl pectin (LMP), de-esterified by high hydrostatic pressure (HHP)-assisted enzymatic method, was comparatively investigated in the presence of different sugar alcohols (erythritol, xylitol and sorbitol). Results showed that both sugar alcohol type and concentration had significant effects on LMP gelation. Gel strength, elasticity, and storage modulus G’ decreased with increasing sugar alcohol concentration, but erythritol-gels always showed the highest value, and sorbitol-gels the lowest at the same sugar alcohol concentration. All LMP gels had good water holding capacity (>97%) when the sugar alcohols concentration was less than 20% (w/v). Moreover, micro-rheology properties revealed that erythritol-gels with better elasticity also formed faster, showing higher gel point. These differences might be mainly due to the combination of sugar alcohols with calcium and pectin inhibiting the interaction between pectin and calcium. In addition, the competition for water between pectin and sugar alcohol also played a certain role. All these results indicated that erythritol-gels had more potential application in low-calorie foods due to its superior gel properties and lower calories.

If you are hungry for even more, make sure to check my other article about 3452-97-9, HPLC of Formula: C9H20O.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

Let¡¯s face it, organic chemistry can seem difficult to learn, Computed Properties of C2H5NaO4S, Especially from a beginner¡¯s point of view. Like 1562-00-1, Name is Sodium isethionate, molecular formula is alcohols-buliding-blocks, belongs to alcohols-buliding-blocks compound. In a document, author is Zeng, Chuantao, introducing its new discovery.

The expression profiles of acid-stable alpha-amylase and acid-labile alpha-amylase of Aspergillus luchuensis mut. Kawachii effect on the microstructure of koji and alcohol fermentation

We investigated the contribution of the complex expressions of two alpha-amylases, namely acid-stable alpha-amylase (AS-amylase) and acid-labile alpha-amylase (AL-amylase), from Aspergillus kawachii to the microstructure of koji and the brewing. AL-amylase was found to be the primary contributor to the decomposition of starch in the early stage of koji making. From the middle stage, both alpha-amylases decomposed the starch in a coordinated manner, and at the final stage, acid-stable alpha-amylase and glucoamylase decomposed the starch granules. Characterization of koji prepared by the single disruptions of AS-amylase or AL-amylase genes, double disruption of both alpha-amylase genes, and triple disruption of two alpha-amylase and glucoamylase genes in A. kawachii cells indicated that both alpha-amylases can work in a synergistic manner to decompose starches during koji making. AL-amylase was found, for the first time, to play an important role in starch decomposition in koji. The speed of alcohol fermentation and ester contents of the fermented mash were higher the mash prepared the control strain, followed by single, double, and triple disruptants. These results indicate that the microstructure of koji plays a role in promoting alcohol fermentation and flavor development.

If you are hungry for even more, make sure to check my other article about 1562-00-1, Computed Properties of C2H5NaO4S.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

In an article, author is Zhong, Liangxuan, once mentioned the application of 4461-39-6, Quality Control of N-(2-Hydroxyethyl)-1,3-propanediamine, Name is N-(2-Hydroxyethyl)-1,3-propanediamine, molecular formula is C5H14N2O, molecular weight is 118.18, MDL number is MFCD00025617, category is alcohols-buliding-blocks. Now introduce a scientific discovery about this category.

Construction of hierarchical photocatalysts by growing ZnIn2S4 nanosheets on Prussian blue analogue-derived bimetallic sulfides for solar co-production of H-2 and organic chemicals

Exploring highly efficient bifunctional photocatalysts for simultaneous H-2 evolution and organic chemical production in pure water represents a green route for sustainable solar energy storage and conversion. Herein, a facile strategy was explored for preparing a hierarchical porous heterostructure of Fe4Ni5S8@ZnIn2S4(FNS@ZIS) by the in situ growth of ZIS nanosheets on Prussian blue analogue (PBA)-derived bimetallic FNS sulfides. A series of FNS@ZIS hierarchical structures were facilely prepared by adjusting the loading amount (n%) of FNS (n = 19, 26, and 32 for FNS@ZIS-1-3). These structures can efficiently drive the solar co-production of H2 and organic chemicals. The optimal co-production was achieved with FNS@ZIS-2, affording a H-2 evolution rate of 10465 mu mol.g(-1).h(-1), along with high selectivity for the oxidation of benzyl alcohol to benzaldehyde (>99.9%). The performance was 22 and 31 times higher than that of FNS and ZIS, respectively, and even superior to the state-of-the-art results achieved using various sacrificial agents. Further mechanistic study indicated that the unique hierarchical core/shell architecture can facilitate interfacial charge separation, afford bimetallic synergy, abundant active sites and excellent photostability. This work highlights a simple and efficient method for preparing porous multimetallic hierarchical structures for the solar co-production of organic chemicals and H-2 fuel. (C) 2020 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.

If you are interested in 4461-39-6, you can contact me at any time and look forward to more communication. Quality Control of N-(2-Hydroxyethyl)-1,3-propanediamine.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

Chemistry is an experimental science, Recommanded Product: (2,4-Dichlorophenyl)methanol, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 1777-82-8, Name is (2,4-Dichlorophenyl)methanol, molecular formula is C7H6Cl2O, belongs to alcohols-buliding-blocks compound. In a document, author is Jin, Haimei.

Destabilization mechanism of (W-1+W-2 )/O reverse Janus emulsions

Hypothesis: Reverse Janus emulsion, with droplets composed by two rooms of water phases, is a novel multiple emulsion attributed to excellent integration capability and biocompatibility. However, significant instability compared with normal Janus emulsions renders the stability issue of great importance. Moreover, the ultra-low aqueous-aqueous inner interfacial tension, the anisotropic nature of the droplets with distinct lobe composition, and the random orientation in the continuous phase endow the complicated and various demulsification mechanisms. Experiments: Reverse Janus emulsion of (W-1+W-2)/O, employing typical salt-alcohol aqueous two-phase system (ATPS) as inner phases, is prepared in batch scale by conventional one-step vortex mixing. The demulsification process is detected by multiple light scattering technique, which provides real-time, in-situ, and quantitative information of emulsion evolution. Moreover, the fusion pattern of the anisotropic droplets is illustrated by the combination with light microscopy and size distribution measurement. Findings: Coalescence and sedimentation are found to be two main demulsification processes. Two salt body lobes of the snowman shaped Janus droplets combine first resulting in an intermediate Cerberus topology with two alcohol heads on one salt body. Subsequently, two head lobes coalesce resulting in a larger Janus droplet. Ultimately, the Gibbs free energy leads to a final state with three separated liquids. In addition, the variation in lobe viscosity, density, and properties of interfacial film greatly affect the demulsification rate and fusion pattern. A critical alcohol/surfactant mass ratio of 2 is found, beyond which a completely different fusion pattern occurs. Two alcohol body lobes combine first resulting in an intermediate Cerberus topology with two salt heads on one alcohol body. Subsequently, two head lobes coalesce resulting in a larger Janus droplet. The findings are instructive in the stability of aqueous based multiple emulsions with advanced morphologies and meanwhile, promote the future application of this novel emulsion in food science, pharmacy, and biomimetic compartmentalization. (C) 2020 Elsevier Inc. All rights reserved.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 1777-82-8, in my other articles. Recommanded Product: (2,4-Dichlorophenyl)methanol.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

Chemistry, like all the natural sciences, Application In Synthesis of 3-(Methylamino)-1-phenylpropan-1-ol, begins with the direct observation of nature¡ª in this case, of matter.42142-52-9, Name is 3-(Methylamino)-1-phenylpropan-1-ol, SMILES is OC(C1=CC=CC=C1)CCNC, belongs to alcohols-buliding-blocks compound. In a document, author is Tang, Chuan-he, introduce the new discover.

Strategies to utilize naturally occurring protein architectures as nanovehicles for hydrophobic nutraceuticals

The development of protein-based nanovehicles to improve water solubility, stability and bioavailability of hydrophobic or poorly soluble nutraceuticals has become a subject of fast increasing interest in the field. This review mainly presents the state-of-art knowledge about the utilization of naturally occurring nanostructured protein architectures (casein micelles, ferritin and legume oligomeric globulins) as nanovehicles for hydrophobic nutraceuticals or drugs, through a disassembly and reassembly strategy. First, the composition and structural features of these three naturally occurring architectures are briefly summarized. Then, many strategies and techniques to mediate the disassembly and reassembly of these naturally occurring architectures are comprehensively reviewed, including pH-, urea-, alcohol-, high pressure-, and heat-mediated disassembly and reassembly (or dissociation and reassociation). Last, reassembled casein micelles, ferritin (or apoferritin) and legume oligomeric protein nanoparticles are demonstrated to perform as outstanding nanovehicles for improving water dispersion, stability and bioactivities of many nutraceuticals or drugs. Due to the rapidly increasing consumer interests for health-benefiting foods, this review is of importance for the development of a kind of outstanding nanovehicles for nutraceuticals with a great potential to be applied in functional foods or drug formulations.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions. you can also check out more blogs about 42142-52-9. Application In Synthesis of 3-(Methylamino)-1-phenylpropan-1-ol.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

Chemistry, like all the natural sciences, Recommanded Product: 2-(4-Methoxyphenyl)ethanol, begins with the direct observation of nature¡ª in this case, of matter.702-23-8, Name is 2-(4-Methoxyphenyl)ethanol, SMILES is COC1=CC=C(CCO)C=C1, belongs to alcohols-buliding-blocks compound. In a document, author is Barbosa, Raul, introduce the new discover.

Bright and persistent green and red light-emitting fine fibers: A potential candidate for smart textiles

The properties of smart light-emitting textile/fabric with a persistent afterglow can be beneficial for use in anticounterfeiting, night surveillance, and security trooping among other potential applications. Keeping this in mind, this work is a step forward in designing bright green and red emitting poly vinyl alcohol (PVA) fine fibers. We first synthesized green emitting Zn2GeO4:Mn2+ (ZGOM) and red emitting ZnGa2O4:Cr3+ (ZGOC) nanoparticles using a hydrothermal process. Field Emission Scanning Electron Microscope (FESEM) images depicted the formation of nanomds and sub-10 nm nanoparticles for ZGOM and ZGOC, respectively. These nanoparticles were mixed in a PVA solution and spun into fiber using the Forcespinning (R) technology. FESEM images of the fiber samples show the presence of long, bead-free, defect-free, smooth surfaces with the diameters ranging from 200 nm to 1.2 mu m depending on selected processing parameters; a fiber system was selected considering fiber output and fiber diameter, the selected system had fibers with average diameter of 900 nm for both ZGOM and ZGOC encapsulated PVA fine fibers (MG-PF and CR-PF). Another favorable property was that the thermal stability of the PVA fine fibers was not affected by the nanoparticles. Both MF-PF and CR-PF fine fibers depicted a bright green and red luminescence, respectively, under UV excitation. The fiber can easily accommodate loading up to 1.0% weight without doing any kind of fluorescence quenching. MG-PF fiber displayed a bright and substantial green persistence luminescence up to 500 s. In the case of CR-PF there is a quenching of trap states and therefore intrinsic red persistence luminescence is not retained beyond 100 s. We believe such green fiber if smartly woven in any kind of textile materials/fabric can be an efficient solution to deal with cloth counterfeiting and night surveillance.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions. you can also check out more blogs about 702-23-8. Recommanded Product: 2-(4-Methoxyphenyl)ethanol.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

Let¡¯s face it, organic chemistry can seem difficult to learn, Safety of Oct-1-en-3-ol, Especially from a beginner¡¯s point of view. Like 3391-86-4, Name is Oct-1-en-3-ol, molecular formula is alcohols-buliding-blocks, belongs to alcohols-buliding-blocks compound. In a document, author is Manaj, Savio, introducing its new discovery.

Techniques for measuring carbon and oxygen isotope compositions of atmospheric CO2 via isotope ratio mass spectrometry

Measuring the stable isotope compositions of atmospheric CO2 is common in earth and atmospheric sciences, and various analytical methods have been developed utilizing continuous-flow (CF) or dual-inlet (DI) isotope ratio mass spectrometry (IRMS). Air is typically collected via passive, manual, or automated collection methods and the volume of the air sample ranges from 10 to 300 mL for CF-IRMS to >1 L for DI-IRMS to yield a measurable amount of atmospheric CO2 gas. It has been determined that the integrity of vials and flasks for air sample storage can be compromised after 3 days of air collection for delta C-13 values and within 10 hours for delta O-18 values. Air samples must be purified after collection to remove constituents of air, such as Ar, O-2, N-2, N2O, and water vapor, to avoid isobaric interferences during mass spectrometric measurement. Purification is generally undertaken by utilizing commercial or custom-made preconcentration devices, the blanking method for CF-IRMS, or an offline/online cryogenic separation using a vacuum line for DI-IRMS. Ambient N2O is a component of air that may affect analytical results and thus must either be corrected for or be removed using a gas chromatographic column. In some cases, water is removed during air collection by using a common chemical desiccant, magnesium perchlorate (Mg(ClO4)(2)), or by a dry ice/alcohol mixture (-78 degrees C). Lastly, a linearity issue for IRMS due to the low amount of purified CO2 from a typical ambient air sample must be considered. In general, analytical precisions of 0.02-0.21 parts per thousand and 0.04-0.34 parts per thousand for CF-IRMS and 0.01-0.02 parts per thousand and 0.01-0.02 parts per thousand for DI-IRMS are expected for delta C-13 and delta O-18 measurements, respectively.

If you are hungry for even more, make sure to check my other article about 3391-86-4, Safety of Oct-1-en-3-ol.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 104-38-1, Name is 1,4-Bis(2-hydroxyethoxy)benzene, formurla is C10H14O4. In a document, author is Jayasekara, Harindra, introducing its new discovery. Safety of 1,4-Bis(2-hydroxyethoxy)benzene.

Lifetime alcohol intake, drinking patterns over time and risk of stomach cancer: A pooled analysis of data from two prospective cohort studies

Alcohol consumption is causally linked to several cancers but the evidence for stomach cancer is inconclusive. In our study, the association between long-term alcohol intake and risk of stomach cancer and its subtypes was evaluated. We performed a pooled analysis of data collected at baseline from 491 714 participants in the European Prospective Investigation into Cancer and Nutrition and the Melbourne Collaborative Cohort Study. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated for incident stomach cancer in relation to lifetime alcohol intake and group-based life course intake trajectories, adjusted for potential confounders including Helicobacter pylori infection. In all, 1225 incident stomach cancers (78% noncardia) were diagnosed over 7 094 637 person-years; 984 in 382 957 study participants with lifetime alcohol intake data (5 455 507 person-years). Although lifetime alcohol intake was not associated with overall stomach cancer risk, we observed a weak positive association with noncardia cancer (HR = 1.03, 95% CI: 1.00-1.06 per 10 g/d increment), with a HR of 1.50 (95% CI: 1.08-2.09) for >= 60 g/d compared to 0.1 to 4.9 g/d. A weak inverse association with cardia cancer (HR = 0.93, 95% CI: 0.87-1.00) was also observed. HRs of 1.48 (95% CI: 1.10-1.99) for noncardia and 0.51 (95% CI: 0.26-1.03) for cardia cancer were observed for a life course trajectory characterized by heavy decreasing intake compared to light stable intake (P-homogeneity = .02). These associations did not differ appreciably by smoking or H pylori infection status. Limiting alcohol use during lifetime, particularly avoiding heavy use during early adulthood, might help prevent noncardia stomach cancer. Heterogeneous associations observed for cardia and noncardia cancers may indicate etiologic differences.

I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 104-38-1 help many people in the next few years. Safety of 1,4-Bis(2-hydroxyethoxy)benzene.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

Chemistry, like all the natural sciences, begins with the direct observation of nature¡ª in this case, of matter.770-71-8, Name is Adamantan-1-ylmethanol, SMILES is OCC12CC3CC(C2)CC(C3)C1, belongs to alcohols-buliding-blocks compound. In a document, author is Zhang, Xiaodong, introduce the new discover, Formula: C11H18O.

Enhanced photocatalytic degradation of gaseous toluene and liquidus tetracycline by anatase/rutile titanium dioxide with heterophase junction derived from materials of Institut Lavoisier-125(Ti): Degradation pathway and mechanism studies

Anatase/rutile titanium dioxide (TiO2) with heterophase junction and large Brunauer-Emmett-Teller (BET) specific surface area (50.1 m(2) g(1)) is successfully synthesized by calcinating Materials of Institut Lavoisier-125(Ti) (MIL-125(Ti)) with 30% O-2/Ar at the temperature of 600 degrees C (M-O-600). Several techniques are used to examine the physicochemical, photoelectrochemical and optical properties of samples, and their photocatalytic performances are evaluated by photodegradation of gaseous toluene and liquidus tetracycline (TC) under visible light illumination. It is found that the calcination temperature has significant influence on the crystal structure and physicochemical parameters of TiO2. The weight fractions of rutile and anatase TiO2 of M-600 are approximately 0.7 and 0.3, which displays outstanding photocatalytic activity. Through the construction of heterophase junction, M-O-600 has better oxygen adsorption and higher density of localized states, which effectively promotes the generation of superoxide radical (center dot O-2(-)) and hydroxyl radical (center dot OH) species. In-situ infrared spectra indicate that toluene is oxidized to benzyl alcohol, benzaldehyde and benzoic acid in turn and then oxidized to formic acid and acetic acid before eventually degraded into H2O and CO2. Gas chromatography-mass spectrometry (GC-MS) is also used to further investigate the degradation pathway of toluene. Degradation pathway and mechanism of TC are studied by liquid chromatography-tandem mass spectrometry (LC-MS). Moreover, three-dimensional excitation-emission matrix fluorescence spectroscopy (3D EEMs) and total organic carbon (TOC) show that TC can be effectively mineralized through a series of reactions by M-O-600 during photocatalysis. (C) 2020 Elsevier Inc. All rights reserved.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 770-71-8 is helpful to your research. Formula: C11H18O.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

In an article, author is Yang, Tian, once mentioned the application of 770-71-8, Recommanded Product: 770-71-8, Name is Adamantan-1-ylmethanol, molecular formula is C11H18O, molecular weight is 166.26, MDL number is MFCD00074751, category is alcohols-buliding-blocks. Now introduce a scientific discovery about this category.

Selective electrooxidation of 2-propanol on Pt nanoparticles supported on Co3O4: an in-situ study on atomically defined model systems

2-Propanol and its dehydrogenated counterpart acetone can be used as a rechargeable electrofuel. The concept involves selective oxidation of 2-propanol to acetone in a fuel cell coupled with reverse catalytic hydrogenation of acetone to 2-propanol in a closed cycle. We studied electrocatalytic oxidation of 2-propanol on complex model Pt/Co3O4(111) electrocatalysts prepared in ultra-high vacuum and characterized by scanning tunneling microscopy. The electrocatalytic behavior of the model electrocatalysts has been investigated in alkaline media (pH 10, phosphate buffer) by means of electrochemical infrared reflection absorption spectroscopy and ex-situ emersion synchrotron radiation photoelectron spectroscopy as a function of Pt particle size and compared with the electrocatalytic behavior of Pt(111) and pristine Co3O4(111) electrodes under similar conditions. We found that the Co3O4(111) film is inactive towards electrochemical oxidation of 2-propanol under the electrochemical conditions (0.3-1.1 V-RHE). The electrochemical oxidation of 2-propanol readily occurs on Pt(111) yielding acetone at an onset potential of 0.4 V-RHE. The reaction pathway does not involve CO but yields strongly adsorbed acetone species leading to a partial poisoning of the surface sites. On model Pt/Co3O4(111) electrocatalysts, we observed distinct metal support interactions and particle size effects associated with the charge transfer at the metal/oxide interface. We found that ultra-small Pt particles (around 1 nm and below) consist of partially oxidized Pt-delta(+) species which show minor activity towards 2-propanol oxidation. In contrast, conventional Pt particles (particle size of a few nm) are mainly metallic and show high activity toward 2-propanol oxidation.

If you are interested in 770-71-8, you can contact me at any time and look forward to more communication. Recommanded Product: 770-71-8.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts