Author: Jessica.F

In an article, author is Daescu, M., once mentioned the application of 106246-33-7, HPLC of Formula: https://www.ambeed.com/products/106246-33-7.html, Name is 4,4′-Methylenebis(3-chloro-2,6-diethylaniline), molecular formula is C21H28Cl2N2, molecular weight is 379.37, MDL number is MFCD00071551, category is chlorides-buliding-blocks. Now introduce a scientific discovery about this category.

Chemical polymerization of o-phenylenediamine (OPD) in the presence of poly(ethylene oxide), double-wall carbon nanotubes (DWNTs) and ferric chloride is carried out in order to obtain composites based on the poly(o-phenylenediamine)-poly(ethylene oxide) (POPD-PEO) fibres covered and interconnected with DWNTs. Vibrational and photoluminescence properties of these composite materials as well as their morphologies are shown by infrared (IR) spectroscopy, Raman scattering, photoluminescence (PL) and scanning electron microscopy (SEM). An adsorption of DWNTs onto the POPD rods surface in the absence and in the presence of. PEO is highlighted by SEM. The vibrational changes reported by Raman scattering and IR spectroscopy prove a covalent functionalization of DWNTs with the macromolecular compound POPD which is doped with FeCl4- T ions. New hydrogen bonds are generated between POPD covalently functionalized DWNTs and hydroxyl groups of PEO according to IR spectroscopic studies. The two macromolecular compounds, POPD and POPD-PEO, show a complex emission band with maxima at 572 and 566 nm, having a shoulder at 667 nm. A significant change in the profile of the PL bands of POPD and POPD-PEO is induced in the DWNTs presence. We show that DWNTs induce (i) a diminution in the POPD PL band intensity peaked between 525-600 nm simultaneous with the increase in the intensity of the PL band situated in the 600-800 nm spectral range and (ii) an enhancement process of the emission band localized in the 475-800 nm spectral range in the case of POPD-PEO.

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Reference:
Chloride – Wikipedia,
,Chlorides – an overview | ScienceDirect Topics

Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, 586-75-4, Name is 4-Bromobenzoyl chloride, SMILES is O=C(Cl)C1=CC=C(Br)C=C1, in an article , author is Lobana, Tarlok S., once mentioned of 586-75-4, Safety of 4-Bromobenzoyl chloride.

An equimolar reaction of copper(I) chloride with the (E)-2-benzylidene-N-methylhydrazinecarbothioamide (btscH-(NHMe)-H-1) thio-ligand in acetonitrile followed by the addition of one equivalent of triphenylphosphine (Ph3P) gave crystals. The elemental analysis, and infrared and proton NMR spectra of the crystals supported the empirical composition, {CuCl(Ph3P)(btscH-(NHMe)-H-1)}, and single crystal X-ray crystallography revealed formation of the dinuclear compound, [Cu-2(mu-Cl)(2)(Ph3P)(2)(kappa S-1-btscH-(NHMe)-H-1)(2)] (1). There is intramolecular H-bonding between the hydrazinic hydrogen atom (N-2-H) and chloride ion {NH…Cl, 2.29; N…Cl, 3.144 angstrom}. The intermolecular H-bonding between the dimeric units led to the formation of a H-bonded 1 D polymer. DFT calculations on complexes of copper(I) halides with the model thiosemicarbazone, {H2C2=N-3-N(H)-C(=S)-(NHMe)-H-1}, and PH3 as a co-ligand, revealed the formation of halogen-bridged or sulfur-bridged dinuclear complexes, without or with the halogen – solvent/water hydrogen bonding. Some interesting conclusions are inferred from the experimental-theoretical correlations.

But sometimes, even after several years of basic chemistry education, it is not easy to form a clear picture on how they govern reactivity! 586-75-4, you can contact me at any time and look forward to more communication. Safety of 4-Bromobenzoyl chloride.

Reference:
Chloride – Wikipedia,
,Chlorides – an overview | ScienceDirect Topics

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. COA of Formula: https://www.ambeed.com/products/625-35-4.html, 625-35-4, Name is (E)-2-Butenoyl chloride, SMILES is C/C=C/C(Cl)=O, in an article , author is Seneviratne, Chaminda J., once mentioned of 625-35-4.

Purpose One of the key approaches to minimize the risk of COVID-19 transmission would be to reduce the titres of SARS-CoV-2 in the saliva of infected COVID-19 patients. This is particularly important in high-risk procedures like dental treatment. The present randomized control trial evaluated the efficacy of three commercial mouth-rinse viz. povidone-iodine (PI), chlorhexidine gluconate (CHX) and cetylpyridinium chloride (CPC), in reducing the salivary SARS-CoV-2 viral load in COVID-19 patients compared with water. Methods A total of 36 SARS-CoV-2-positive patients were recruited, of which 16 patients were randomly assigned to four groups-PI group (n = 4), CHX group (n = 6), CPC group (n = 4) and water as control group (n = 2). Saliva samples were collected from all patients at baseline and at 5 min, 3 h and 6 h post-application of mouth-rinses/water. The samples were subjected to SARS-CoV-2 RT-PCR analysis. Results Comparison of salivary Ct values of patients within each group of PI, CHX, CPC and water at 5 min, 3 h and 6 h time points did not show any significant differences. However, when the Ct value fold change of each of the mouth-rinse group patients were compared with the fold change of water group patients at the respective time points, a significant increase was observed in the CPC group patients at 5 min and 6 h and in the PI group patients at 6 h. Conclusion The effect of decreasing salivary load with CPC and PI mouth-rinsing was observed to be sustained at 6 h time point. Within the limitation of the current study, as number of the samples analyzed, the use of CPC and PI formulated that commercial mouth-rinses may be useful as a pre-procedural rinse to help reduce the transmission of COVID-19. ISRCTN (ISRCTN95933274), 09/09/20, retrospectively registered

But sometimes, even after several years of basic chemistry education, it is not easy to form a clear picture on how they govern reactivity! 625-35-4, you can contact me at any time and look forward to more communication. COA of Formula: https://www.ambeed.com/products/625-35-4.html.

Reference:
Chloride – Wikipedia,
,Chlorides – an overview | ScienceDirect Topics

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 112-26-5, Name is 1,2-Bis(2-chloroethoxy)ethane, molecular formula is C6H12Cl2O2. In an article, author is Besharatlou, Sousan,once mentioned of 112-26-5, Product Details of 112-26-5.

In this investigation, Mn-Al and Cu-Al as layered double hydroxide (LDH) adsorbents were prepared by co-precipitation method and Calcined/Cu-Al (Cu-Al LDO) was prepared by heating Cu-Al at 500 degrees C for sulfate (SO42-) removal from aqueous media. Results show that the Cu-Al LDO has the better adsorption capacity compared with Mn-Al and Cu-Al toward SO42-. To improve the selectivity and capacity of Cu-Al LDO, hybrid nanocomposites were obtained by in situ formation of an inorganic network (Cu-Al LDO) in the presence of organic compounds. Surfactants such as N-Alkyl-N,N-dimethyl-N-benzylammonium chloride (NDBA) and cetyltrimethylammonium bromide (CTAB) are employed as organic compounds. The samples were characterized by N2 isotherm, XRD, FTIR and SEM-EDX with mapping, followed by SO42- adsorption studies. Central composite design (CCD) under response surface methodology (RSM) was used for the optimization of variables for the SO42- uptake from waters using prepared samples. The interactive influence of four variable input parameters viz. initial concentration, adsorbent dose, time and pH were assessed. The adsorption mechanisms that controlled the SO42- adsorption were surveyed based on the adsorption thermodynamics and adsorption kinetics as well as adsorption isotherms. Furthermore, the effect of competitive anions and desorbing agents at different concentrations on the adsorption and desorption of SO42- was explored, respectively.

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Reference:
Chloride – Wikipedia,
,Chlorides – an overview | ScienceDirect Topics

Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, 2516-96-3, Name is 2-Chloro-5-nitrobenzoic acid, SMILES is C1=C([N+]([O-])=O)C=CC(=C1C(=O)O)Cl, in an article , author is Robertson, Hayden, once mentioned of 2516-96-3, Recommanded Product: 2-Chloro-5-nitrobenzoic acid.

Hypothesis: Grafted poly(ethylene glycol) methyl ether methacrylate (POEGMA) copolymer brushes change conformation in response to temperature (‘thermoresponse’). In the presence of different ions the thermoresponse of these coatings is dramatically altered. These effects are complex and poorly understood with no all-inclusive predictive theory of specific ion effects. As natural environments are composed of mixed electrolytes, it is imperative we understand the interplay of different ions for future applications. We hypothesise anion mixtures from the same end of the Hofmeister series (same-type anions) will exhibit non-additive and competitive behaviour. Experiments: The behaviour of POEGMA brushes, synthesised via surface-initiated ARGET-ATRP, in both single and mixed aqueous electrolyte solutions was characterised with ellipsometry and neutron reflectometry as a function of temperature. Findings: In mixed fluoride and chloride aqueous electrolytes (salting-out ions), or mixed thiocyanate and iodide aqueous electrolytes (salting-in ions), a non-monotonic concentration-dependent influence of the two anions on the thermoresponse of the brush was observed. A new term, delta, has been defined to quantitively describe synergistic or antagonistic behaviour. This study determined the specific ion effects imparted by salting-out ions are dependent on available solvent molecules, whereas the influence of salting-in ions is dependent on the interactions of the anions and polymer chains. (C) 2020 Elsevier Inc. All rights reserved.

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Reference:
Chloride – Wikipedia,
,Chlorides – an overview | ScienceDirect Topics

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. 627-00-9, Name is 4-Chlorobutanoic acid, formurla is C4H7ClO2. In a document, author is Atta, Dennis Yaw, introducing its new discovery. Recommanded Product: 4-Chlorobutanoic acid.

The cost and environmental effects of most conventional surfactants have increased the search for a greener and cheaper alternative for enhanced oil recovery (EOR) applications. The natural L-amino acids are amphoteric compound with excellent surface properties that have found versatile applications in the pharmaceutical, cosmetic, and food industries. These amino acids exhibited amphipathic nature due to their hydrophobic alkyl chain and charged head. Hence, they could form contacts with both polar and non-polar surface ligands simultaneously. In this study, four amino acids, namely L-arginine, L-lysine, L-methionine, and L-tryptophan, were investigated to access their ability to reduce the interfacial tension (IFT) and alter the wettability of oil-wet sandstone rock. The pendant/rising drop and sessile drop method were employed in IFT and contact angle measurements. The stability of amino acids in brine and the compatibility with other EOR chemicals were tested through visual observation of the precipitates and cloudiness. With the exception of L-tryptophan, the compatibility and stability results revealed that all the amino acids have high salt tolerance above 25 wt% sodium chloride (NaCl). The solutions of amino acids and chemicals such as cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS), hydrolyzed polyacrylamide (HPAM), alkali, and alkali-polymer were transparent even at 80 degrees C. The IFT test results showed that the amino acids significantly reduced the crude oil-water IFT compared to the IFT of n-decane-water system. The IFT between deionized water and crude oil decreased by 76.61% and 55.24%, 24.79%, 45.23% in the presence of L-arginine, lysine, methionine, and tryptophan solutions, respectively. Addition of 0.01 wt% L-arginine, L-lysine and L-methionine to 0.1 wt% SDS reduced the IFT by 28.3%, 15.6%, and 10.97% respectively. The contact angle test showed that L-amino acids have great potential as wettability modifying agents. The contact angles reduced with the decreasing pH (potential of hydrogen) and with increasing brine concentrations from 1 to 4 wt%. Specifically, the contact angle reduced from 92.3 degrees, 91.42 degrees, 89.81 degrees and 92.95 to 47.24 degrees, 53.9 degrees, 58.9 degrees and 59.0 degrees for L-arginine, L-lysine, L-methionine and L-tryptophan, respectively at a pH of about 3. The study suggests that the L-amino acids could be a potential EOR agent in a high saline environment, mainly as a wettability modifier, as well as additives to improve the surface activity of the conventional surfactant and EOR chemicals.

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Chloride – Wikipedia,
,Chlorides – an overview | ScienceDirect Topics

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 367-21-5, Name is 3-Chloro-4-fluoroaniline, molecular formula is C6H5ClFN. In an article, author is Safaeian, Leila,once mentioned of 367-21-5, Computed Properties of https://www.ambeed.com/products/367-21-5.html.

Background and objectives: Sargassum angustifolium is a brown alga in southwestern coastline of Persian Gulf. Regarding the presence of various bioactive compounds and evidence of antihypertensive effects in other species of Sargassum, we evaluated the effect of S. angustifolium ethanol extract in CdCl2-induced hypertension in Wistar rats. Methods: Alga extract was prepared by maceration method using 70% ethanol and assessed for total phenolics and salt content. CdCl2 (1.5 mg/kg/day) was administered intraperitoneally to the rats for two weeks. Treatment groups received S. angustifolium extract (20, 40 and 80 mg/kg) or nifedipine (10 mg/kg) orally and simultaneously were given CdCl2 for two weeks. Systolic blood pressure (SBP) and heart rate were measured using tail-cuff method. Total antioxidant capacity, urea, creatinine, electrolytes including sodium, potassium, calcium and chloride were estimated in blood samples. The weight and histopathology of kidney tissues were also evaluated. Results: The content of total phenolic as gallic acid equivalent and the salt as NaCl was 67.42 +/- 9.5 mg/g and 6.9 g/100 g in dried ethanol extract, respectively. CdCl2 caused significant increase in SBP, kidney/body weight ratio, serum sodium and urea level and decrease in plasma total antioxidant capacity, and also histopathological alterations in kidney tissues. Treatment with S. angustifolium extract at the doses of 40 and 80 mg/kg significantly reversed hypertension and improved kidney weight, urea level and electrolyte changes, and enhanced antioxidant capacity and prevented histopathological changes of kidney. Conclusion: Findings of the present study indicated antihypertensive and antioxidant effects of S. angustifolium extract against CdCl2-induced hypertension in rats.

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Reference:
Chloride – Wikipedia,
,Chlorides – an overview | ScienceDirect Topics

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Category: chlorides-buliding-blocks, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 1005-56-7, Name is O-Phenyl carbonochloridothioate, molecular formula is C7H5ClOS. In an article, author is Lv, Hao,once mentioned of 1005-56-7.

Noble metal alloy nanowires (NWs) with ultrathin diameters (2-3 nm) and precisely controllable elemental compositions have attracted dramatically growing attention for (electro)catalysis. Despites numerous achievements in past two decades, noble metal alloy NWs are mostly synthesized with the traditional oil-phase methods that suffer from some undesirable drawbacks. Here, we report a general strategy for fast, scalable, and aqueous synthesis of multicomponent Pd-based alloy ultrathin NWs with an average diameter of 2.6 nm, ranging from bimetallic PdM (PdFe, PdCo, PdNi, PdCu, PdZn, PdRu, PdRh, PdAg, PdCd, PdIr, PdPt, PdAu) and binary PdS/PdP NWs, to trimetallic PdM1M2 NWs (PdAuCu, PdCoNi, PdCuZn, PdCuNi, PdAgCu, PdAuCu, PdRuAg, PdAuRu, and PdPtAu), and to tetrametallic PdM1M2M3 NWs (PdAuAgCu, PdCoCuNi, PdAuCuNi, PdPtAuCu, and PdIrPtAu). The key to the success of this aqueous synthesis is the utilization of N2H4 as the extremely strong reducing agent that directs the synchronous reduction and anisotropic nucleation growth of multicomponent Pd alloy NWs along nanoconfined columnar phase assembled with amphiphilic dioctadecyldimethylammonium chloride. As-resultant Pd-based alloy ultrathin NWs exhibit multiple structural and compositional synergies, which remarkably optimize the removal of poisoning ethoxy intermediates and thus improve electrocatalytic performance towards ethanol oxidation reaction (EOR). Among them, tetrametallic PdAuCuNi alloy ultrathin NWs hold a high EOR activity of 5.14 A mg(Pd)(-1) and a low activation energy of 13.1 kJ mol(-1), both of which are much better than its counterpart catalysts alloyed with less elements. This work represents an important advance in precise aqueous synthesis of multicomponent noble metal alloy ultrathin NWs as the high-performance electrocatalysts for various targeted applications.

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Reference:
Chloride – Wikipedia,
,Chlorides – an overview | ScienceDirect Topics

Synthetic Route of 140-53-4, As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 140-53-4, Name is (4-Chlorophenyl)acetonitrile, SMILES is ClC1=CC=C(CC#N)C=C1, belongs to chlorides-buliding-blocks compound. In a article, author is Zhang, Yurong, introduce new discover of the category.

Permeability is a major indicator of concrete durability, and depends primarily on the microstructure characteristics of concrete, including its porosity and pore size distribution. In this study, a variety of concrete samples were prepared to investigate their microstructure characteristics via nuclear magnetic resonance (NMR), mercury intrusion porosimetry (MIP), and X-ray computed tomography (X-CT). Furthermore, the chloride diffusion coefficient of concrete was measured to explore its correlation with the microstructure of the concrete samples. Results show that the proportion of pores with diameters < 1000 nm obtained by NMR exceeds that obtained by MIP, although the difference in the total porosity determined by both methods is minimal. X-CT measurements obtained a relatively small porosity; however, this likely reflects the distribution of large pores more accurately. A strong correlation is observed between the chloride diffusion coefficient and the porosity or contributive porosity of pores with sizes < 1000 nm. Moreover, microstructure parameters measured via NMR reveal a lower correlation coefficient R-2 versus the chloride diffusion coefficient relative to the parameters determined via MIP, as NMR can measure non-connected as well as connected pores. In addition, when analyzing pores with sizes > 50 mu m, X-CT obtains the maximal contributive porosity, followed by MIP and NMR.

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Reference:
Chloride – Wikipedia,
,Chlorides – an overview | ScienceDirect Topics

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 6092-54-2, Name is Hexyl carbonochloridate, SMILES is O=C(Cl)OCCCCCC, in an article , author is Hu, Sen, once mentioned of 6092-54-2, Application In Synthesis of Hexyl carbonochloridate.

In this work, an S hybrid nanosheet with multiple functions is synthesized by in situ modification of gold nanoparticles (AuNPs) onto two-dimensional (2D) metalloporphyrinic metal-organic framework (MOF) (Cu-tetra(4-carboxyphenyl)porphyrin chloride(Fe(III)), designated as AuNPs/Cu-TCPP(Fe). Cu-TCPP(Fe) nanosheets contribute peroxidase-like activity, and AuNPs have glucose oxidase (GOx) mimicking performance, which induce the cascade catalysis reactions to convert glucose into hydrogen peroxide (H2O2), and then, by using AuNP catalysis, H2O2 oxidizes the no Raman-active leucomalachite green (LMG) into the Raman-active malachite green (MG). Simultaneously, in the presence of AuNPs, sensitive and selective surface-enhanced Raman scattering (SERS) determination of glucose can be achieved. The bioenzyme-free SERS assay based on such AuNPs/Cu-TCPP(Fe) nanosheets is used for detection of glucose in saliva, showing good recovery from 96.9 to 100.8%. The work paves a new way to design a nanozyme-based SERS protocol for biomolecule analysis.

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Reference:
Chloride – Wikipedia,
,Chlorides – an overview | ScienceDirect Topics