Month: November 2022

Nano Pd doped Ni foam electrode stimulated electrochemical reduction of tetrabromobisphenol A: Optimization strategies and function mechanism was written by Lin, Xiao-Qiu;You, Jia-Mei;Meng, Ling-Yu;Yoshida, Naoko;Han, Jing-Long;Li, Cong-Ju;Wang, Ai-Jie;Li, Zhi-Ling. And the article was included in Science of the Total Environment in 2022.Safety of Sodium tetrachloropalladate(II) The following contents are mentioned in the article:

Tetrabromobisphenol A (TBBPA), a hazardous and persistent flame retardant, has been widely detected in the natural aquatic system. The acceleration of reductive debromination (rate-limiting process) is vital during the decomposition and detoxification of TBBPA. This study achieved superior TBBPA electrochem. reductive debromination performance by nano Pd doped Ni foam electrode (4.8 times higher than Ni foam electrode). The optimal TBBPA reductive debromination performance was obtained under -1.2 V of cathode potential, 1.2 wt% of Pd loading, 10 mg L-1 of TBBPA and 100 mM of Na2SO4 as the electrolyte solution UPLC-QTOF-MS verified that Br atoms in TBBPA were removed sequentially to form bisphenol A as the major product. Most TBBPA was reductively debrominated by at. H* through indirect hydrodebromination, evidenced by the at. H* quenching test. The higher solution conductivity and appropriate TBBPA concentration would contribute to the debromination efficiency. Excessive H₂ generation whether by over neg. potential or H atom richness electrolyte largely disturbed the reaction process and restricted the debromination. The improved generation of reductant (H*)adsPd was the most significant, while excessive Pd loading would make aggregation and limit the debromination efficiency. The study confirmed the optimization strategies of conditions for Pd/Ni foam electrode and revealed the related function mechanism for stimulating TBBPA electrochem. reduction, giving suggestions for the efficient removal of TBBPA in the aquatic environment. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Safety of Sodium tetrachloropalladate(II)).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Safety of Sodium tetrachloropalladate(II)

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

Inhibition of asphaltene precipitation using hydrophobic deep eutectic solvents and ionic liquid was written by Sanati, A.;Malayeri, M. R.;Busse, O.;Weigand, J. J.. And the article was included in Journal of Molecular Liquids in 2021.Application of 5137-55-3 The following contents are mentioned in the article:

Precipitation and subsequent deposition of asphaltene in oil reservoirs may cause severe flow assurance problems due to clogging/blocking of pore spaces and wettability alteration of reservoir rocks towards oil-wetness. The present study focuses, for the first time, on the potential application of three hydrophobic deep eutectic solvents (HDESs) prepared by mixing methyltrioctylammonium chloride (N81Cl) as their hydrogen bond acceptor (HBA) with alc. hydrogen bond donors (HBDs), namely 1-propanol, 1,3-propanediol, and glycerol. The performance of HDESs was compared with a phosphonium-based hydrophobic ionic liquid (IL), Trihexyltetradecylphosphonium bis(2,4,4-trimethylpentyl)phosphinate (TTPBP), as well as dodecylbenzene sulfonic acid (DBSA), a conventional asphaltene precipitation inhibitor. Initially, the kinetic and onset of asphaltene precipitation were evaluated using an UV-visible (UV-Vis) spectrophotometer to determine the chems.’ inhibition propensity. Next, Fourier-transform IR (FTIR) spectroscopy, thermogravimetric (TGA), and elemental analyses were used for the recovered asphaltenes from HDESs and TTPBP solutions to examine their structures. Spectrophotometry results revealed that glycerol-based HDES (HDES 3) and TTPBP could effectively inhibit the asphaltene precipitation, where their performances were comparable to that of DBSA. Besides, aromaticity index, thermal degradation, and H:C and oxygen contents provided evidence that HDES 3 and TTPBP could disrupt the asphaltenes structure, thus stabilizing them in the oleic environment. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Application of 5137-55-3).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Application of 5137-55-3

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

Insights into Transformation of Icosahedral PdRu Nanocrystals into Lattice-Expanded Nanoframes with Strain Enhancement in Electrochemical Redox Reactions was written by Kao, Chen-Rui;Yeh, Ai-Hsuan;Chen, Bo-Hao;Lyu, Lian-Ming;Chuang, Yu-Chun;Sneed, Brian T.;Kuo, Chun-Hong. And the article was included in Chemistry of Materials in 2022.Computed Properties of Cl4Na2Pd The following contents are mentioned in the article:

Bimetallic icosahedral nanoframes have three-dimensional open structures, a high surface-area-to-volume ratio, and high surface site availability. Twin boundaries in these structures cause surface lattice expansion that leads to tensile strain over the nanoframes, which can improve their catalytic activity; however, robust methods for their synthesis in most metal systems are still lacking. In this work, we demonstrate a one-step synthetic strategy for the synthesis of both closed solid and hollow frame icosahedral PdRu nanoparticles (INPs) via a two-stage process of growth and dissolution By extraction at different reaction times, INPs, concave-faceted icosahedral PdRu nanoparticles (CINPs), and icosahedral PdRu nanoframes (INFs) are obtained. High-angle annular dark-field scanning transmission electron microscopy-energy-dispersive X-ray spectroscopy and inductively coupled plasma-optical emission spectrometry analyses show that the icosahedral nanostructures are PdRu alloys with ~5 at. % Ru relative to Pd. We also carried out the electrochem. ethanol oxidation reaction (EOR) and CO₂ reduction reaction over three types of catalysts, PdRu INPs, PdRu CINPs, and PdRu INFs, as well as com. Pd NPs, to examine their catalytic properties. PdRu INFs showed a much higher mass activity than PdRu INPs, PdRu CINPs, and Pd NPs in the EOR. PdRu INFs exhibited the highest Faradaic efficiency of CO gas (34%), which suggests that the expansive strain in the framework catalyst structure improves selectivity and activity for CO₂ conversion. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Computed Properties of Cl4Na2Pd).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Computed Properties of Cl4Na2Pd

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

Systematic investigation on the abnormal surface and interfacial activity of fatty acid ionic liquids was written by Jia, Han;Wang, Shaoyan;Xu, Yingbiao;Wang, Tingyi;Zhang, Lingyu;Song, Jinyong;Zhang, Xuehao;Song, Lin;Jia, Haidong;Yan, Hui. And the article was included in Colloids and Surfaces, A: Physicochemical and Engineering Aspects in 2022.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

Ionic liquids are regarded as the promising and efficient additives to use in various aspects of petroleum industry, especially in chem. EOR. In this investigation, three novel fatty acid ionic liquids (FAILs), methyltrioctylammonium octanoate ([N8881][C8:0]), methyltrioctylammonium laurate ([N8881][C12:0]) and methyltrioctylammonium palmitate ([N8881][C16:0]), were selected and evaluated for their performances in terms of surface/interfacial activity, temperature and salt resistances. The three FAILs could cause remarkable reduction of surface tension to ∼30mN/m in their aqueous solutions, and the [N8881][C8:0] with the shortest anionic alkane chain exhibited the greatest surface activity among three FAILs. Then the size-match effect and intermol. interaction were employed to explain the abnormal variations, which were confirmed by the control experiments using mixed surfactants and the mol. dynamics simulation. It was found that the binding energy in [N8881][C8:0] (-28.961 kcal/mol) was larger than that in [N8881][C16:0] (-22.942 kcal/mol), which should be responsible for their different surface activity. Moreover, the crude oil/water interfacial tension (IFT) could be decreased to the much level (4.9 x10^-3 mN/m and 1.7 x 10^-2 mN/m) even at high-temperature conditions (80 °C) and at high-salinity conditions (100,000 mg/L), indicating the FAILs might be the ideal candidate for the EOR used surfactants with great temperature and salt tolerances. Meanwhile, the variations of IFT results further verified our proposed mechanism. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Category: chlorides-buliding-blocks).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. Alkyl chlorides are versatile building blocks in organic chemistry. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available.Category: chlorides-buliding-blocks

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

Novel magnetic iron-nickel/poly(ethersulfone) mixed matrix membranes for oxygen separation potential without applying an external magnetic field was written by Nady, Norhan;Salem, Noha;Kandil, Sherif H.. And the article was included in Scientific Reports in 2022.Safety of Lithium chloride The following contents are mentioned in the article:

This work presents novel magnetic mixed matrix poly(ethersulfone) (PES) membranes that combine the advantages of low-cost common PES polymer and low-cost iron-nickel magnetic alloys. Moreover, the presented magnetic mixed matrix PES membranes were fabricated and used without applying an external magnetic field during either the membrane casting or the separating process. The fabricated magnetic membranes were prepared using the phase inversion technique and N-methylpyrrolidone and N,N-dimethylformamide solvents mixture with volumetric ratio 1:9 and Lithium chloride as an additive. The used iron-nickel magnetic alloys were prepared by a simple chem. reduction method with unique morphologies (Fe₁₀Ni₉₀; starfish-like and Fe₂₀Ni₈₀; necklace-like). The fabricated membranes were characterized using SEM and Scanning-Transmission Electron Microscope (STEM) imaging, energy dispersive X-ray (EDX), TGA, and XRD. Also, static water contact angle, membrane thickness, surface roughness, membrane porosity, membrane tensile strength as well as Vibrating Sample Magnetometer (VSM) anal. and oxygen transition rate (OTR) were determined Moreover, the effect of alloy concentration and using Lithium chloride as an additive on the properties of the fabricated blank PES and magnetic mixed matrix PES membranes were studied. The presented novel magnetic mixed matrix PES membranes have high coercivity up to 106 (emu/g) with 3.61 x 10^-5 cm³/cm².s OTR compared to non-oxygen permeable blank PES membranes. This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8Safety of Lithium chloride).

Lithium chloride (cas: 7447-41-8) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Safety of Lithium chloride

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

Dual-electric layer nanofiltration membranes based on polyphenol/PEI interlayer for highly efficient Mg²⁺/Li⁺ separation was written by Chen, Kuo;Zhao, Shengchao;Lan, Hongling;Xie, Tengteng;Wang, Hao;Chen, Yuhao;Li, Peng;Sun, Haixiang;Niu, Q. Jason;Yang, Chaohe. And the article was included in Journal of Membrane Science in 2022.Recommanded Product: 7447-41-8 The following contents are mentioned in the article:

In recent years, the global demand for lithium resources has grown substantially due to the rapid development of the new energy industry. The nanofiltration (NF) technique is a feasible method to extract lithium from salt-lake brine, and the high Mg²⁺/Li⁺ separation selectivity of the NF membrane is the crucial factor in the NF separation process. In this work, the polyamide (PA) layer was prepared on the polyphenol/PEI interlayer-modified polysulfone (PSF) substrate to endow the NF membrane with decreased pore size and weakened electronegativity. Enhanced steric hindrance effect and reduced electrostatic attraction between Mg²⁺ and PA layer increased the Mg²⁺ rejection, thereby improving the Mg²⁺/Li⁺ separation factor of the NF membrane. Furthermore, the pos. charged polyphenol/PEI interlayer hindered the permeation of Mg²⁺ through the Donnan effect, further enhancing the Mg²⁺/Li ⁺ separation factor. A separation factor up to 50.7 for Mg²⁺/Li⁺ was achieved by extracting lithium from simulated brine using the obtained NF membrane. In addition, the NF membrane exhibited a permeability of 18.6 L m^-2 h^-1·bar^-1 and excellent long-term stability, which greatly improved the Mg²⁺/Li⁺ separation efficiency and reduced energy consumption. Therefore, this work provides a simple strategy for preparing NF membranes with high Mg²⁺/Li⁺ separation factor and permeability. This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8Recommanded Product: 7447-41-8).

Lithium chloride (cas: 7447-41-8) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Recommanded Product: 7447-41-8

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

Thermodynamic Solution Properties of a Biodegradable Chelant (L-glutamic-N,N-diacetic Acid, L-GLDA) and Its Sequestering Ability toward Cd2+ was written by Bretti, Clemente;Di Pietro, Roberto;Cardiano, Paola;Gomez-Laserna, Olivia;Irto, Anna;Lando, Gabriele;De Stefano, Concetta. And the article was included in Molecules in 2021.Related Products of 75-57-0 The following contents are mentioned in the article:

The thermodn. of the interaction of L-glutamic-N,N-diacetic acid (GLDA) with protons was studied potentiometrically at different temperatures, ionic strengths and ionic media. Four protonation constants and corresponding enthalpy changes occurred at infinite dilution together with temperature and ionic strength coefficients The medium effect was also interpreted in terms of the formation of weak complexes between the ligand and the cations of supporting electrolytes, resulting in a greater tendency of GLDA to chem. interact with Na⁺ rather than K⁺ and, in turn, (CH₃)₄N⁺. Formation constants of GLDA with Cd²⁺ were determined in NaCl(aq) at different ionic strength values. Five complex species were found, namely CdL^2-, CdHL^–, Cd₂L⁰(aq), Cd₂L⁰(aq), and Cd(OH)L^3-, whose formation constant values at infinite dilution were log β = 12.68, 17.61, 20.76, 17.52, and 1.77, resp. All the species results were relevant in the pH range of natural waters, although the Cd₂L⁰(aq) was observed only for C_Cd ≥ C_GLDA and concentrations of >0.1 mmol dm^-3. The sequestering ability of GLDA toward Cd²⁺, evaluated by means of pL₀.₅, was maximum at pH 10, whereas the presence of a chloride containing a supporting electrolyte exerted a neg. effect. Among new generation biodegradable ligands, GLDA was the most efficient in Cd²⁺ sequestration. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Related Products of 75-57-0).

Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Related Products of 75-57-0

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

Substitution and addition reactions of ^•OH with p-substituted-phenols was written by Albarran, Guadalupe;Galicia-Jimenez, Eduardo;Mendoza, Edith;Schuler, Robert H.. And the article was included in Radiation Physics and Chemistry in 2017.Product Details of 95-88-5 The following contents are mentioned in the article:

The directing effect of a hydroxyl group on the substitution and addition reactions of ^•OH to the substituted and free positions in aromatic rings of p-substituted-phenols were studied in aqueous solutions containing either K₃Fe(CN)₆ as an oxidant of the substituted hydroxycyclohexadienyl radical initially formed or using ascorbic acid. The results showed that the attack of the ^•OH to the substituted position (ipso position) was followed by elimination of the substituent producing hydroquinone. The addition reaction of the ^•OH to the free position on the ring produced 4-substituent-catechol and 4-substituent-resorcinol derivatives Identification and quantification of the radiolytic products were carried out using high performance liquid chromatog. The results of the yields are given for the p-halogen-phenols (p-X-Ph) p-F-Ph, p-Cl-Ph, p-Br-Ph and p-I-Ph. Other compounds, p-nitro-Ph, p-OH-benzoic acid, p-OH-benzonitrile, p-OH-benzaldehyde, p-OH-anisole and p-OH-benzyl alc. (represented as p-Z-Ph), were only studied using K₃Fe(CN)₆ as the oxidant. The results show that the p-X-Ph are attacked by the ^•OH at the ipso position to the halogen in the proportion 1:0.53:0.46:0.11 for F>Cl>Br>I. The ^•OH attacked at the ipso position to the p-Z-Phs through a substitution reaction, which depended on the substituent group. Thus, the strongly deactivating groups produced less hydroquinone, indicating less substitution reaction than the strongly activating groups. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Product Details of 95-88-5).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Product Details of 95-88-5

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

The fabrication of carboxylic acid-functionalized porous layer open tube column and its application in hydrophilic interaction chromatography for small polar molecules was written by Tang, Shiyun;Duan, Yuanxing;Chang, Feng;Jiang, Wei;Zhang, Fengmei;Liu, Zhihua;Yang, Yuting;Liu, Chunbo;Chen, Yingzhuang. And the article was included in Journal of Liquid Chromatography & Related Technologies in 2020.Application In Synthesis of 4-Chlororesorcinol The following contents are mentioned in the article:

The porous layer open-tube (PLOT) columns, characterized by their considerable sp. surface area and high permeability, have attracted a growing attention from researchers in liquid chromatog. In this work, a hydrophilic PLOT column rich in carboxylic acid functional groups was successfully synthesized in capillary with an inner diameter of 200μm by thermally initiated aqueous two-phase polymerization Methacrylic acid (MAA) areas monomers that responsible for the introduction of polar functional groups, and poly(ethylene glycol) diacrylate (PEGDA) are as cross-linker. The optimized PLOT column has a uniform, moderately thick porous layer, which is tightly bonded to the inner wall without any detachment. The hollow structure gives the PLOT column good permeability, which facilitates fast mass transfer. The systematical evaluations of the resulting PLOT columns were performed by using polar analytes including nucleosides, bases, amides, phenols and carboxylic acids. Those results demonstrated excellent separation performance for the small polar mols. Compared to the poly(PEGDA) PLOT column, the hydrophilic retention of analytes on poly(PEGDA-co-MAA) porous layer open-tube column is significantly improved by the introduction of carboxylic acids. Furthermore, with modified nucleosides and chlorophenols being disease markers and the persistent pollutant of wide concern, resp., the separation was optimized and the linear range of the quant. anal. was examined for both targets. which indicates the potential application of such PLOT column for anal. of real samples. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Application In Synthesis of 4-Chlororesorcinol).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Application In Synthesis of 4-Chlororesorcinol

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

Preparation of Various Nanomaterials via Controlled Gelation of a Hydrophilic Polymer Bearing Metal-Coordination Units with Metal Ions was written by Nagai, Daisuke;Isobe, Naoki;Inoue, Tatsushi;Okamoto, Shusuke;Maki, Yasuyuki;Yamanobe, Takeshi. And the article was included in Gels in 2022.Related Products of 13820-53-6 The following contents are mentioned in the article:

We investigated the gelation of a hydrophilic polymer with metal-coordination units (HPMC) and metal ions (Pd^II or Au^III). Gelation proceeded by addition of an HPMC solution in N-methyl-2-pyrrolidone (NMP) to a metal ion aqueous solution An increase in the composition ratio of the metal-coordination units from 10 mol% to 34 mol% (HPMC-34) increased the crosslinking rate with Au^III. Crosslinking immediately occurred after dropwise addition of an HPMC-34 solution to the Au^III solution, generating the separation between the phases of HPMC-34 and Au^III. The crosslinking of Au^III proceeded from the surface to the inside of the HPMC-34 droplets, affording spherical gels. In contrast, a decrease in the ratio of metal-coordination units from 10 mol% to 4 mol% (HPMC-4) decreased the Pd^II crosslinking rate. The crosslinking occurred gradually and the gels extended to the bottom of the vessel, forming fibrous gels. On the basis of the mechanism for the formation of gels with different morphologies, the gelation of HPMC-34 and Au^III provided nanosheets via gelation at the interface between the Au^III solution and the HPMC-34 solution The gelation of HPMC-4 and Pd^II afforded nanofibers by a facile method, i.e., dropwise addition of the HPMC-4 solution to the Pd^II solution These results demonstrated that changing the composition ratio of the metal-coordination units in HPMC can control the gelation behavior, resulting in different types of nanomaterials. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Related Products of 13820-53-6).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Related Products of 13820-53-6

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