Category: chlorides-buliding-blocks

Anaerobic treatment of glutamate-rich wastewater in a continuous UASB reactor: Effect of hydraulic retention time and methanogenic degradation pathway was written by Chen, Hong;Wei, Yanxiao;Xie, Chenglei;Wang, Hong;Chang, Sheng;Xiong, Ying;Du, Chunyan;Xiao, Benyi;Yu, Guanlong. And the article was included in Chemosphere in 2020.Safety of N-Methyl-N,N-dioctyloctan-1-aminium chloride The following contents are mentioned in the article:

To investigate the anaerobic treatment efficiency and degradation pathways of glutamate-rich wastewater under various hydraulic retention times (HRTs), a lab-scale upflow anaerobic sludge blanket (UASB) reactor was operated continuously for 180 days. Results showed that high COD (COD) removal efficiencies of 95.5%-96.5% were achieved at HRTs of 4.5 h-6 h with a maximum methane yield of 0.31 L-CH₄/g-COD. When the HRT was shortened to less than 3 h, the removal performance of the reactor declined. There also was an excessive accumulation of volatile fatty acids, which implies that an appropriately small HRT is applicable to the UASB reactor treating glutamate-rich wastewater. Methanogenic degradation of glutamate in the UASB reactor depended on the HRT applied, and the typical methane-producing capability of the sludge at an HRT of 3 h, in descending order, was acetate > glutamate > butyrate > H₂/CO₂ > valerate > propionate. Clostridium and Methanosaeta were predominant in the glutamate-degrading sludge. At least three degradation pathways most likely existed in the UASB reactor, and the pathway via 3-methlaspartate by Clostridium pascui was expected to be dominant. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Safety of N-Methyl-N,N-dioctyloctan-1-aminium chloride).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) 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. 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.Safety of N-Methyl-N,N-dioctyloctan-1-aminium chloride

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

Valence, Size, and Shape Control of Gold Nanoparticles Synthesized by Electron-Assisted Reduction was written by Shi, Mengge;Wang, Zhao. And the article was included in Chemistry – An Asian Journal in 2020.SDS of cas: 122-18-9 The following contents are mentioned in the article:

An electron-assisted strategy was developed to prepare Au nanoparticles (AuNPs) at room temperature Glow discharge plasma as electron source was successfully used to control the valence state, size, and shape of AuNPs. Stable Au(I) was obtained in 3 min by plasma, and Au(I) was reduced to zero valence with the increase in treatment time. An increase in the amount of Au did not induce an increase in particle size. A narrow size distribution was also achieved. The narrowest size distribution was observed at 9 min at 600 V. AuNPs grew slowly under glow discharge plasma, which slightly changed the mean size of AuNPs. Also, the average size of AuNPs was smaller under alk. conditions. The initial pH of the solution can affect the nucleation and growth of AuNPs and further affect their particle size. Spherical AuNPs, hexagonal AuNPs, rectangular AuNPs, flower-shaped AuNPs, and Au nanorods were easily obtained within 30 min by adding different additives. The hexagonal AuNPs exhibited the largest current response toward caffeine and showed a good linear range (0.1-1000μM) with a low detection limit (0.064μM), because their high-energy planes can increase the electron transfer rate and improve electrocatalytic activity. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9SDS of cas: 122-18-9).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) 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. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.SDS of cas: 122-18-9

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

An efficient green approach for the synthesis of benzothiazole-linked pyranopyrazoles as promising pharmacological agents and docking studies was written by Mallikarjuna Reddy, Guda;Raul Garcia, Jarem;Venkata Subbaiah, Munagapati;Wen, Jet-Chau. And the article was included in Journal of Heterocyclic Chemistry in 2021.Safety of Ethyl 4-chloro-3-oxobutanoate The following contents are mentioned in the article:

Benzothiazole-tethered pyranopyrazoles derivatives I [R = H, 2-Cl, 4-O₂N, etc.] were prepared via environmentally favorable conditions, which included eco-friendly catalyst, ethanol-water solvent, one-pot reaction, and atom- and step-economy procedures. Excellent yield of the products was observed Besides, all products were screened for their antimicrobial behavior. From the biol. results, it was seen that most of the compounds possessed high to moderate antimicrobial properties. Compound I [R = 2-Me] gave prominent antimicrobial property followed by I [R = H, 2-MeO, 4-HO]. In addition, computer-aided studies of the active compounds were also conducted. In this, selected compounds were docked into the intercalation site of DNA of the DNA-gyrase complex. From these results, the highest binding energy of -10.1 kcal/mol was for I [R = 2-Me] against DNA-gyrase. This is the first eco-friendly synthetic method for the preparation of benzothiazole-pyranopyrazoles and the synthetic effort in this study may serve as a model for addnl. environmentally benign reactions. The biol. results may prompt further studies related to antibiotic drugs. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Safety of Ethyl 4-chloro-3-oxobutanoate).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) belongs to organic chlorides. Chlorination modifies the physical properties of hydrocarbons in several ways. These compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Safety of Ethyl 4-chloro-3-oxobutanoate

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

Ultrasound assisted synthesis of attapulgite-PdO nanocomposite using palladium complex for hydrogen storage: Kinetic studies was written by Allawi, Aumaih H.;Alheety, Mustafa A.;Mohammed, Modher Y.. And the article was included in Inorganic Chemistry Communications in 2022.Electric Literature of Cl4Na2Pd The following contents are mentioned in the article:

This research included the synthesis and characterization of new complex by in-situ method using two mole equivalent from 3,4,5-trimethoxybenzoic acid (TMB) and triphenylphosphine (PPh₃) in the presence of triethylamine (NEt₃). This complex was characterized using FTIR, ¹H NMR, ³¹P NMR, CHN, molar conductivity The results prove that TMB ligand behave as monodentate through the protonated oxygen atom of the carboxylic. This complex was used as a precursor for the synthesis of PdO@attapulgite nanocomposite which was characterized using TEM and XRD. The measurement proved that the palladium oxide nanoparticles had a pos. effect in reducing the diameter of the attapulgite channels from 160 nm to the range 90-95 nm. This nanocomposite was used as a potential material for hydrogen storage. The results of hydrogen storage showed that the composite has the ability to store hydrogen even at low pressures, as the composite had the ability to store âˆ?% at 30 bar and reached 3.81% at 90 bar. The kinetic studies prove that the storage fit to the pseudo-second order with coefficient factor equal to 0.9278 and the hydrogen storage was reached the maximum (3.81%) after only 200 s. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Electric Literature of Cl4Na2Pd).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Electric Literature of Cl4Na2Pd

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

Achieving Z-scheme charge transfer through constructing Bi₄Ti₃O₁₂/Pd@Au/Ag₂S heterostructure for photoelectrochemical aptasensor of Hg²⁺ detection was written by Luo, Jing;Shao, Xinrong;Gong, Zhengxing;Sun, Xu;Ma, Hongmin;Wu, Dan;Fan, Dawei;Li, Yuyang;Wei, Qin;Ju, Huangxian. And the article was included in Sensors and Actuators, B: Chemical in 2022.Electric Literature of Cl4Na2Pd The following contents are mentioned in the article:

An ultrasensitive photoelectrochem. (PEC) aptasensor based on Bi₄Ti₃O₁₂/Pd@Au/Ag₂S was proposed for the detection of Hg²⁺. The indium tin oxide (ITO) electrode was first decorated with the nested hollow bismuth titanate (Bi₄Ti₃O₁₂) that functioned with Pd@Au as an electron mediator to accelerate the photocurrent conversion, and then silver sulfide (Ag₂S) nanoparticles were grown in-situ to enhance the PEC response. The band gap of Ag₂S is so narrow that photogenerated electrons are easily generated under illumination. Pd@Au acts as an electron medium to facilitate electron transfer from the conduction band of Ag₂S to the valence band of Bi₄Ti₃O₁₂. The quant. detection of Hg²⁺ was achieved based on the thymidine-Hg²⁺-thymidine (T-Hg²⁺-T) specific interaction. The results showed that the PEC aptasensor showed a wide linear range (1 mM-0.1 pM) and a low detection limit (19 fM). In addition, the aptasensor has excellent selectivity, reproducibility and stability, providing a feasible method for the detection of Hg²⁺. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Electric Literature of Cl4Na2Pd).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) belongs to organic chlorides. Chlorination modifies the physical properties of hydrocarbons in several ways. These compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. 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 Cl4Na2Pd

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

Structural investigations of three triazines: Solution-state NMR studies of internal rotation and structural information from solid-state NMR, plus a full structure determination from powder X-ray diffraction in one case was written by Birkett, Helen E.;Cherryman, Julian C.;Chippendale, A. Margaret;Evans, John S. O.;Harris, Robin K.;James, Mark;King, Ian J.;McPherson, Graham J.. And the article was included in Magnetic Resonance in Chemistry in 2003.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

Three model 2,4,6-tris(amino)-1,3,5-triazines, structurally related to a dyestuff mol. previously studied by NMR, were synthesized in order to enable the effects of rotamer exchange on the NMR spectra to be investigated in more detail. Two of the compounds are novel. Internal rotation of the triazine ring substituents was studied by variable-temperature solution-state ¹H, ¹³C and ¹⁵N NMR spectroscopy. All the expected rotamers were detected for each mol. Rotamer exchange rates varied from slow to fast over the temperature range -40 to 90°C, as observed for the dyestuff mol. itself. Solid-state ¹³C and ¹⁵N NMR provided information about the structures of the solid mols. A full crystal structure determination from high-resolution powder x-ray diffraction was achieved for one of the mols. using simulated annealing techniques. Ab initio MO and ¹⁵N NMR chem. shift calculations, based on energy-minimized structures derived from the x-ray structure determination, enabled the effect of intermol. hydrogen bonding on the ¹⁵N NMR chem. shifts to be studied. The results compared favorably with the exptl. solid-state ¹⁵N NMR shifts. This study involved multiple reactions and reactants, such as 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4Category: chlorides-buliding-blocks).

4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. 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).Category: chlorides-buliding-blocks

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

Alternative method for qualitative analysis of specific non-volatile organic compounds present in South African water systems was written by Brutti, R.;Magu, M. M.;Agorku, E. S.;Govender, P. P.. And the article was included in South African Journal of Chemistry in 2016.Safety of 4-Chlororesorcinol The following contents are mentioned in the article:

Currently, water quality assessment has become a necessity in order to maintain healthy living. Point and non-point sources of water pollutants are either organic or inorganic in nature. Non-volatile organic compounds (nVOCs) mostly exist as solids at room temperature and are used on a large scale in most chem. industries. Since these nVOCs are toxic to both animals and humans and some of these non-volatile organic compounds are carcinogenic, it is important to analyze the water in order to ascertain its quality by identifying which types of compounds arepresent in these systems and quantifying them. This work reports on the use of a new and alternative method for qual. anal. of nVOCs in water systems. Anal. was done for 13 sampling sites (seven from wastewater and six from surface water found in Gauteng and KwaZulu-Natal provinces, resp.).Vacuum evaporation followed by methanol extraction of the residues was performed. Fourier Transform IR (FTIR) was conducted using NaCl disk and KBr pellets and their results compared. High Performance Liquid Chromatog. (HPLC) was chosen as a technique for comparison and to prove that the simple IR (IR) can be used instead. In addition, HPLC is an ideal anal. technique for non-volatile substances. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Safety of 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.Safety of 4-Chlororesorcinol

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

An unexpected strategy to alleviate hypoxia limitation of photodynamic therapy by biotinylation of photosensitizers was written by An, Jing;Tang, Shanliang;Hong, Gaobo;Chen, Wenlong;Chen, Miaomiao;Song, Jitao;Li, Zhiliang;Peng, Xiaojun;Song, Fengling;Zheng, Wen-Heng. And the article was included in Nature Communications in 2022.Quality Control of 4-Chlororesorcinol The following contents are mentioned in the article:

The most common working mechanism of photodynamic therapy is based on high-toxicity singlet oxygen, which is called Type II photodynamic therapy. But it is highly dependent on oxygen consumption. Recently, Type I photodynamic therapy has been found to have better hypoxia tolerance to ease this restriction. However, few strategies are available on the design of Type I photosensitizers. We herein report an unexpected strategy to alleviate the limitation of traditional photodynamic therapy by biotinylation of three photosensitizers (two fluorescein-based photosensitizers and the com. available Protoporphyrin). The three biotiylated photosensitizers named as compound 1, 2 and 3, exhibit impressive ability in generating both superoxide anion radicals and singlet oxygen. Moreover, compound 1 can be activated upon low-power white light irradiation with stronger ability of anion radicals generation than the other two. The excellent combinational Type I / Type II photodynamic therapy performance has been demonstrated with the photosensitizers 1. This work presents a universal protocol to provide tumor-targeting ability and enhance or trigger the generation of anion radicals by biotinylation of Type II photosensitizers against tumor hypoxia. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Quality Control of 4-Chlororesorcinol).

4-Chlororesorcinol (cas: 95-88-5) 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. 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).Quality Control of 4-Chlororesorcinol

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

Development of magnetic dispersive micro-solid phase extraction based on magnetic agarose nanoparticles and deep eutectic solvents for the isolation and pre-concentration of three flavonoids in edible natural samples was written by Majidi, Seyedeh Maedeh;Hadjmohammadi, Mohammad Reza. And the article was included in Talanta in 2021.HPLC of Formula: 75-57-0 The following contents are mentioned in the article:

In the present study, an environmentally friendly magnetic dispersive micro-solid phase extraction was developed based on magnetic agarose nanoparticles and deep eutectic solvents for the isolation and pre-concentration of three flavonoids (morin, quercetin, and kaempferol) from dark tea, chocolate, vegetable, and fruit juice samples. In this method, deep eutectic solvents were synthesized from less toxic and low-cost substances under feasible conditions and used as eluents in the desorption process. These solvents can be considered as a green alternative to traditional organic reagents to increase the adsorption capacity and reduce the matrix interferences, dangerous waste generation and environmental pollution. A Plackett-Burman design was employed for screening the exptl. variables. The effective variables were then optimized by Box-Behnken design (BBD). Under the optimial conditions, the presented method demonstrated wide linear ranges of 1-500μg. L-1 for morin and quercetin, and 5-500μg. L-1 for kaempferol with satisfactory recoveries above 91%. Limit of detections (LODs) and quantifications (LOQs) of flavonoids varied in 0.2-1.1μg. L-1 and 0.66-3.63μg. L-1, resp. The precision of the proposed method was the range of 2.6-5.7%. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0HPLC of Formula: 75-57-0).

Tetramethylammonium chloride (cas: 75-57-0) 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.HPLC of Formula: 75-57-0

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

Electron-beam patterned monolayer-protected gold nanoparticle interface layers on a chemiresistor vapor sensor array was written by Steinecker, William H.;Kim, Sun Kyu;Bohrer, Forest I.;Farina, Lee;Kurdak, Cagliyan;Zellers, Edward T.. And the article was included in IEEE Sensors Journal in 2011.Electric Literature of C6H12BrCl The following contents are mentioned in the article:

Use of electron-beam induced crosslinking (EBIX) to pattern films of thiolate-monolayer-protected gold-nanoparticles (MPNs) on chemiresistor (CR) vapor sensors is described. MPNs with alkyl, cyanoalkyl, phenoxyalkyl, and hydroxyfluoroalkyl thiolate tail groups were patterned on integrated arrays of interdigital electrodes using electron doses of 500-750 μC/cm². The d.c. resistances of solvent cast films of these MPNs decrease and the baseline-normalized changes in resistance to each of five organic vapors increase to different degrees with increasing electron-beam dose. Relative responses patterns from an array of MPN-coated CR sensors for the test vapors change after EBIX patterning and the diversity of responses is diminished, on average, but it is still projected to be sufficient for the discrimination of most of the individual test vapors and binary mixtures Results are rationalized in terms of expected changes in ligand structures and film properties following EBIX patterning using known models of electronic conduction, and vapor-induced changes of conduction, through MPN films. The implications of the results for creating arrays of densely packed MPN-coated CRs as detectors for microanal. systems are considered. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Electric Literature of C6H12BrCl).

1-Bromo-6-chlorohexane (cas: 6294-17-3) 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.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.Electric Literature of C6H12BrCl

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