Category: chlorides-buliding-blocks

Screening of biocides, metals and antibiotics in Swedish sewage sludge and wastewater was written by Oestman, Marcus;Lindberg, Richard H.;Fick, Jerker;Bjoern, Erik;Tysklind, Mats. And the article was included in Water Research in 2017.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

Incoming sewage water, treated effluent and digested sludge were collected from 11 Swedish sewage treatment plants (STPs) on 3 different days. Anal. protocols were established for a large number of compounds (47) with antimicrobial properties and the collected samples were then screened for the presence of these selected substances. Liquid chromatog. tandem mass spectrometry (LC-MS/MS) and inductively coupled plasma mass spectrometry (ICP-MS) were used to analyze the samples. Thirty organic compounds and 10 metals were detected above their resp. detection limit. Quaternary ammonium compounds were the most abundant substances in the particulate phases with levels up to 370 μg/g and benzotriazoles were the most common in the aqueous phases with levels up to 24 μg/L. Several compounds with no, or very limited, previously reported data were detected in this study, including chlorhexidine, hexadecylpyridinium chloride and 10-benzalkonium chloride. Some of these were both frequently detected (>60% detection frequency) and found in high levels (up to 19 μg/g d.w. sludge). This study gives a comprehensive overview of the presence in Swedish STPs of a number of antimicrobial substances, providing crucial information in designing relevant studies on potential microbial co- and cross resistance development between antibiotics, biocides, and metals in the sewage system. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Category: chlorides-buliding-blocks).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) 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. 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.Category: chlorides-buliding-blocks

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

High-throughput macromolecular polymorph screening via an NMR and X-ray powder diffraction synergistic approach: the case of human insulin co-crystallized with resorcinol derivatives was written by Spiliopoulou, Maria;Valmas, Alexandros;Triandafillidis, Dimitris-Panagiotis;Fili, Stavroula;Christopoulou, Magdalini;Filopoulou, Aikaterini J.;Piskopou, Anastasia;Papadea, Polyxeni;Fitch, Andrew N.;Beckers, Detlef;Degen, Thomas;Gozzo, Fabia;Morin, Mickael;Reinle-Schmitt, Mathilde L.;Karavassili, Fotini;Rosmaraki, Eleftheria;Chasapis, Christos T.;Margiolaki, Irene. And the article was included in Journal of Applied Crystallography in 2021.Formula: C6H5ClO2 The following contents are mentioned in the article:

Regular injections of insulin provide life-saving benefits to millions of diabetics. Apart from native insulin and insulin analog formulations, microcrystalline insulin suspensions are also com. available. The onset of action of the currently available basal insulins relies on the slow dissociation of insulin hexamers in the s.c. space due to the strong binding of small organic ligands. With the aim of identifying insulin-ligand complexes with enhanced pharmacokinetic and pharmacodynamic profiles, the binding affinity of two resorcinol-based mols. (4-chlororesorcinol and 4-bromoresorcinol) and the structural characteristics of insulin upon co-crystallization with them were investigated in the present study. ‘In solution’ measurements were performed via saturation transfer difference (STD) NMR. Co-crystallization upon pH variation resulted in the production of polycrystalline precipitates, whose structural characteristics (i.e. unit-cell symmetry and dimension) were assessed. In both cases, different polymorphs (four and three, resp.) of monoclinic symmetry (P2₁ and C2 space groups) were identified via X-ray powder diffraction. The results demonstrate the efficiency of a new approach that combines spectroscopy and diffraction techniques and provides an innovative alternative for high-throughput examination of insulin and other therapeutic proteins. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Formula: C6H5ClO2).

4-Chlororesorcinol (cas: 95-88-5) 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. 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.Formula: C6H5ClO2

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

A room temperature acetone sensor based on synthesized tetranitro-oxacalix[4]arenes: Thin film fabrication and sensing properties was written by Sen, S.;Comert Onder, F.;Capan, R.;Ay, M.. And the article was included in Sensors and Actuators, A: Physical in 2020.Name: 4-Chlororesorcinol The following contents are mentioned in the article:

Tetranitro-oxacalix[4]arenes were prepared to determine their thin film fabrication and gas sensing applications. Firstly, tetranitro-oxacalix[4]arenes (1-3) were synthesized via nucleophilic aromatic substitution reaction (SNAr) using substituted resorcinol derivatives and 1,5-difluoro-2,4-dinitrobenzene with moderate to high yields. Later, successfully synthesized materials were utilized to construct thin films using the spin coating method and the characterization of the deposited films was performed with UV-vis and surface plasmon resonance (SPR). Characterization results indicated that high-quality spin-coated thin films were prepared using these materials. The sensing abilities of the spin-coated thin films of tetranitro-oxacalix[4]arenes (1-3) were tested using the SPR method for volatile organic vapors of acetone, chloroform, toluene, ethanol and benzene. High concentration sensitivity values of 0.0700 x 10-3, 0.1001 x 10-3 and 0.8653 x 10-3 with normalized response/ppm unit for acetone vapor were obtained for thin films (1-3), resp. The sensors obtained using especially thin films 1 and 3 showed high responses toward acetone even at low concentration ranges between 3.8-15.2 ppm. These sensors have the advantages of high sensitivity, reusability and reproducibility of results which make them compatible for practical acetone-detection applications. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Name: 4-Chlororesorcinol).

4-Chlororesorcinol (cas: 95-88-5) 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. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Name: 4-Chlororesorcinol

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

Effect of Dielectric Saturation on Ion Activity Coefficients in Ion Exchange Membranes was written by Paspureddi, Akhilesh;Sharma, Mukul M.;Katz, Lynn E.. And the article was included in ACS Omega in 2022.SDS of cas: 7447-41-8 The following contents are mentioned in the article:

Polymeric ion exchange membranes are used in water purification processes to sep. ions from water. The distribution and transport of ionic species through these membranes depend on a variety of factors, including membrane charge d., morphol., chem. structure and the specific ionic species present in the fluid. The elec. potential distribution between membranes and solutions is typically described using models based on Donnan theory. An extension of the original theory is proposed to account for nonideal behavior of ions both in the fluid and in the membrane as well to provide a more robust description of interactions of solutes with fixed charge groups on the polymer backbone. In this study, the variation in dielec. permittivity in the membrane medium with elec. field strength is taken into account in a model based on Gouy-Chapman double-layer theory to provide a more accurate description of ion activity coefficients in an ion exchange membrane. A semianal. model is presented that accounts for the variation in dielec. permittivity of water in a charged polymer membrane. A comparison of this model with Manning’s counterion condensation model clearly demonstrates that by incorporating changes in water dielec. permittivity with elec. field strength, much better agreement with experiments can be obtained over a range of salt concentrations for different ions. This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8SDS of cas: 7447-41-8).

Lithium chloride (cas: 7447-41-8) 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. 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.SDS of cas: 7447-41-8

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

Limited ion-ion selectivity of salt-rejecting membranes due to enthalpy-entropy compensation was written by Shefer, Idit;Peer-Haim, Ophir;Epsztein, Razi. And the article was included in Desalination in 2022.Electric Literature of ClLi The following contents are mentioned in the article:

Water and ion transport in salt-rejecting membranes, such as nanofiltration (NF) and reverse osmosis (RO), are exposed to different hindrance effects that result in selectivity between species. In this study, we explored systematically the hindrance effects that govern water-salt and ion-ion selectivity in NF and RO membranes. More specifically, we measured the permeability of different species at varying temperatures and applied an Eyring-type equation to quantify the enthalpic and entropic barriers for their transport in three types of salt-rejecting membranes. We found that water-salt selectivity is entropically driven, where water mols. gain entropy in the membrane, while the salt ions face a substantial entropic barrier due to their larger size that reduces their possible configurations in the membrane. As the enthalpic barriers of the water and salt did not show a prominent difference (with minor effect on the water-salt selectivity), most ion-ion separations were restricted by an enthalpy-entropy compensation (EEC) effect; i.e., an ion with a higher entropic barrier experienced a lower enthalpic barrier compared to the competing ion, resulting in minor variations in the free-energy barriers between ions that limit the ion-ion selectivity. We conclude by proposing possible mechanisms that promote EEC during ion transport in salt-rejecting membranes. This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8Electric Literature of ClLi).

Lithium chloride (cas: 7447-41-8) 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).Electric Literature of ClLi

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

Multifunctional waterborne polyurethane films: Amine-response, thermal-driven self-healing and recyclability was written by Sai, Futao;Zhang, Haitao;Qu, Jianbo;Wang, Jianyong;Zhu, Xiuzhong;Bai, Yang;Ye, Peng. And the article was included in Applied Surface Science in 2022.Synthetic Route of C6H9ClO3 The following contents are mentioned in the article:

Currently, the preparation and application of functional waterborne polyurethane has become a research hotspot in the field of polyurethane. In the present work, different weight ratios of diacetyl oxime and coumarin diol were used as the reactive filler with isophorone diisocyanate (IPDI) and polypropylene glycol (PPG) to prepare superior amine-response, self-healing and recyclable waterborne polyurethane films (WPU-x). Dynamic mech. anal. was carried out to identify the self-healing properties of WPU-x. It was revealed that the WPU-2 film showed an excellent self-healing capability based on the combination of the mobility of the soft segment, dynamic reaction of oxime carbamate bond and hydrogen bonds, and the mech. properties self-healing efficiency can reach 91.11% after self-healing at 90°C for 7 h. UV testing and fluorescence imaging results showed that WPU-2 film exhibit a rapid and concentration-dependent response to dimethylamine (DMA), and it also showed varying degrees of response to other organic amines. The WPU-2 film could be readily applied in cold chain transportation of shrimp and fish for real-time and visual monitoring the freshness of seafoods. At the same time, the WPU-2 film could be recycled via hot-pressing and solution casting. Therefore, this strategy provides some insights for preparing multi-functional waterborne polyurethane. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Synthetic Route of C6H9ClO3).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) 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. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Synthetic Route of C6H9ClO3

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

Facile self-crosslinking to improve mechanical and durability of polynorbornene for alkaline anion exchange membranes was written by Huang, Shengmei;He, Xiaohui;Cheng, Changwen;Zhang, Feng;Guo, Yan;Chen, Defu. And the article was included in International Journal of Hydrogen Energy in 2020.Synthetic Route of C6H12BrCl The following contents are mentioned in the article:

Crosslinking is a valid approach to enhance the mech. and durability performance of anion exchange membranes (AEMs). Herein, a facile and effective self-crosslinking strategy, with no need for an addnl. crosslinker or a catalyzer, is proposed. A series of tunable self-crosslinking and ion conduction polynorbornene membranes are designed. The 5-norbornene-2-methylene glycidyl ether (NB-MGE) component which affords self-crosslinking enhances dimensional stability, while the flexible 5-norbornene-2-alkoxy-1-hexyl-3-Me imidazolium chloride (NB-O-Im⁺Cl^–) hydrophilic unit contributes high conductivity The crosslinking significantly decreases the water uptake, and water swelling ratio provides excellent solvent-resistance and enhances the thermal and mech. properties. Addnl., crosslinked rPNB-O-Im-x AEMs exhibit desirable alk. stability. Impressively, the rPNB-O-Im-30 (IEC = 1.377) shows a moderate ion conductivity (61.8 m S cm^-1, 80°C), with a suppressed water absorption and 88.17% initial OH^– conductivity is maintained after treated for 240 h with a 1.0 M NaOH solution at 60°C. Suitably assessed of rPNB-O-Im-30 AEM reveals a 98.4 mW cm^-2 peak power d. reached at a c.d. of about 208 mA cm^-2. The report offers a facile and effectual preparative technique for preparing dimensional and alk. stable AEMs for fuel cells applications. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Synthetic Route of C6H12BrCl).

1-Bromo-6-chlorohexane (cas: 6294-17-3) 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. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Synthetic Route of C6H12BrCl

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

Adsorption of benzalkonium chlorides onto polyethylene microplastics: Mechanism and toxicity evaluation was written by Kim, Tae-Kyoung;Jang, Minhee;Hwang, Yu Sik. And the article was included in Journal of Hazardous Materials in 2022.Electric Literature of C25H46ClN The following contents are mentioned in the article:

Usage of disposable plastic products and disinfectants has been skyrocketing due to the COVID-19 pandemic. The random disposal of plastic products may result in greater microplastic pollution. Benzalkonium chloride is known as one of the most common ingredients of disinfectants. In this study, the adsorption behavior of benzalkonium chlorides (BAC₁₂, BAC₁₄, BAC₁₆) on polyethylene microplastics (PE-MPs) and the combined toxic effects were investigated using batch adsorption experiment and Daphnia magna. PE-MPs had strong adsorption capacity for BACs and the adsorption capacity increased (11.03-22.77 mg/g) with their octanol-water distribution coefficients The effect of pH was negligible while dissolved organic matter inhibited the adsorption. A slightly inverse relation between particle size of PE-MPs and adsorption was observed Addnl., the MP aging with UV/H₂O₂ increased the adsorption of BAC₁₂ but decreased that of relatively hydrophobic BAC₁₄ and BAC₁₆. The survival rate of Daphnia magna increased ≤100% in the presence of PE-MPs depending upon their adsorption capacities, suggesting that PE-MPs do not act as a carrier but rather as a scavenger for BACs. This study provides important information necessary for environmental risk assessment with regard to the combined pollution of MPs and toxic chems. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Electric Literature of C25H46ClN).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) 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. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Electric Literature of C25H46ClN

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

A novel O²– (2,4-dinitrophenyl) diazeniumdiolate inhibits hepatocellular carcinoma migration, invasion, and EMT through the Wnt/β-catenin pathway was written by Xing, Yihao;Hu, Yile;Zou, Hanzhi;Xie, Huaxia;Jiang, Tianci;Liu, Ling. And the article was included in Toxicology In Vitro in 2022.Formula: ClLi The following contents are mentioned in the article:

Targeted Wnt/β-catenin pathway is considered to be a promising therapy for cancer metastasis. The novel O2 -(2,4-dinitrophenyl) diazeniumdiolate (JS-K) plays a potent inhibitory role in the proliferation of cancers. In this study, HepG2 and SMMC7721 were used to clarify the efficacy of JS-K inhibition of HCC metastasis. JS-K significantly inhibited cell motility through a wound-healing assay and restrained cell migration and invasion at noncytotoxic concentrations However, the inhibitory effects of migration and invasion were abolished after the addition of NO scavenger, Carboxy-PTIO. In addition, JS-K inhibited the Wnt/β-catenin pathway by a decrease of p-GSK-3β at Ser9, cytosolic β-catenin, and nuclear β-catenin accumulation whereas an increase of p-β-catenin. Furthermore, the transcription regulators c-Myc, survivin, and Cyclin D1 were down-regulated after treating with JS-K. The inhibitory of the Wnt/β-catenin pathway was reversed after the addition of Carboxy-PTIO or LiCl. Meanwhile, JS-K also inhibited the epithelial-mesenchymal transition (EMT)-mediated cell migration and invasion. The characteristics of the inhibition were reflected by the upregulation of E-cadherin whereas the downregulation of Vimentin, Snail, and Slug. Taking together, these results demonstrated that JS-K inhibited HepG2 and SMMC7721 cells migration and invasion by reversing EMT via the Wnt/β-catenin pathway. This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8Formula: ClLi).

Lithium chloride (cas: 7447-41-8) 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. 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.Formula: ClLi

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

Defined Ion-Transfer Voltammetry of a Single Microdroplet at a Polarized Liquid/Liquid Interface was written by Ma, Yamin;Liu, Cheng;Wang, Lishi. And the article was included in Analytical Chemistry (Washington, DC, United States) in 2022.Quality Control of Tetramethylammonium chloride The following contents are mentioned in the article:

A strategy for the fast anal. of ion transfer/facilitated ion transfer toward a tiny (femtoliter) water-in-oil droplet has been established. This scenario is embodied by the fusion of a w/o microdroplet at the micro liquid/liquid (L/L) interface, with the use of Fourier transform fast-scan cyclic voltammetry (FT-FSCV) to express the apparent half-wave potentials of anions or cations encapsulated inside the w/o microdroplet. First, the half-wave potential is in strict accordance with the transfer Gibbs free energy of either cations or anions. Second, the half-wave potential has been found to be pos. proportional to the logarithmic concentration of ions, shedding thermodn. insight into ion transfer. Third, as an instance of multivalent biopolymers, the transfer of protamine inside the single w/o microdroplet has been investigated. Obvious discrepancies in the behaviors of the fusion impacts at different pH, as well as in the absence and presence of the cationic surfactant DNNS^–, are revealed. The internal mechanism of protamine transfer has been thoroughly investigated. This work proposes a strategy to sensitively and quickly determine the transfer Gibbs energy and the concentration of ions encapsulated in a single microdroplet, and it provides the possibility of analyzing the interfacial transfer properties of trace biomacromols. inside an aqueous micro- or nanoscale droplet. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Quality Control of Tetramethylammonium chloride).

Tetramethylammonium chloride (cas: 75-57-0) 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. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Quality Control of Tetramethylammonium chloride

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