Author: Jessica.F

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. HPLC of Formula: C3H5ClO2S, 139631-62-2, Name is Cyclopropanesulfonylchloride, SMILES is O=S(C1CC1)(Cl)=O, in an article , author is Pasupathy, Kirubajiny, once mentioned of 139631-62-2.

Evaluation of alkalinity changes and carbonation of geopolymer concrete exposed to wetting and drying

The investigation of alkalinity changes of geopolymer concrete (GPC) in various environments is important to enhance the application of GPC in the construction field. This study investigates the alkalinity changes of GPC with different proportions of fly ash and slag constituents under three different exposure conditions, such as 1% CO2, cyclic exposure to 1% CO2 and water, and cyclic exposure to 1% CO2 and chloride solution. The changes in pH value, carbonation depth, compressive strength variation, and electrical resistance were determined after a six-month exposure to the three-above-mentioned media. The pH measurements indicate that the geopolymer mix with a high fly ash content has a low initial pH (10.8), and the alkalinity reduction was small after the exposure (reaching 8.4 in 1% CO2 and chloride media). In contrast, the alkalinity of the geopolymer mix with high slag content changed from 12.2 to 7.6, which is similar to the Ordinary Portland Cement (OPC) concrete test results. Compared to the OPC binder, a geopolymer binder is more vulnerable to carbonation and corrosion. However, the resistance to carbonation increased with the addition of slag to the mix. The compressive strength loss of fly ash-based GPC is higher than the OPC concrete. However, it can be reduced with the increment of slag in the mix. Finally, the study on the corrosion of reinforcement bar revealed that the fly ash-based GPC is more prone to corrosion even with higher alkalinity values after the exposure.

But sometimes, even after several years of basic chemistry education, it is not easy to form a clear picture on how they govern reactivity! 139631-62-2, you can contact me at any time and look forward to more communication. HPLC of Formula: C3H5ClO2S.

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 461432-23-5, Name is 4-Bromo-1-chloro-2-(4-ethoxybenzyl)benzene, molecular formula is , belongs to chlorides-buliding-blocks compound. In a document, author is Valeev, Dmitry, HPLC of Formula: C15H14BrClO.

High-pressure HCl leaching of coal ash to extract Al into a chloride solution with further use as a coagulant for water treatment

In the present paper a novel process of the coal ash treatment was developed and analyzed: a high-pressure autoclave HCl leaching of the coal bottom and fly ash from an Omsk coal-fired power plant. This process was applied to extract aluminum from the coal ash into a chloride solution, which can further be used as a coagulant for water treatment. The Al extraction efficiency in this process can reach over 90% at certain process parameters discussed in the present study. Kinetics of the leaching process were evaluated using different kinetic (e.g. shrinking core) models. A semi-empirical equation was proposed for description of the kinetics of the leaching process as a function of the HCl concentration, solid-to-liquid ratio and temperature. Different mechanisms of the leaching process were also discussed and proposed. Water treatment by the obtained Al-chloride showed good results compared to an industrial coagulant; the treated water parameters were within the limits recommended by the World Health Organization for drinkable water. (C) 2020 Elsevier Ltd. All rights reserved.

If you are hungry for even more, make sure to check my other article about 461432-23-5, HPLC of Formula: C15H14BrClO.

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. 126764-17-8, Name is 1-Chloro-6,6-dimethylhept-2-en-4-yne, molecular formula is C9H13Cl. In an article, author is Sima Mirzadeh, Seyedeh,once mentioned of 126764-17-8, Computed Properties of C9H13Cl.

Surface water treatment for production of potable water by coagulation/filtration/nanofiltration membranes hybrid system

Providing potable water will be a challenge for humanity over the next years. In this research, water samples from the Gamasiab River (Iran) were purified to achieve drinking water by applying coagulation, conventional filtration in combination with the nanofiltration process. By using poly aluminum chloride as a coagulant, the turbidity decreased by 96.4%. The turbidity and COD decreased by 98.82% and 32.7%, respectively, via passing the effluent through the activated carbon. Membranes were made of polyethersulfone (PES). Cesium hydrogen phosphotungstic acid (Cs0.5H2.5PW12O40 as CsPW) nanoparticles were incorporated into the polymer matrix to improve the hydrophilicity. The morphology of membranes was studied using the FE-SEM and AFM. The pure water flux and contact angle for the sulfonated PES with 1.5 wt.% CsPW were 51.9 kg/m(2 )h and 55.49 degrees, respectively. The percentage of the turbidity, conductivity, TDS, and COD removal was found to be 99.9, 89.3, 89.3, and 86.6%, respectively, after the hybrid process. The removal of calcium, magnesium, nitrate, chloride, sodium, sulfate, and bicarbonate ions was 90.5, 83.4, 87.9, 60.7, 49, 86, and 80.5%, respectively. Based on these results, the river water meets the standards for drinking water after being purified by applying the aforementioned coagulation/filtration and nanofiltration processes. Practitioner Points The treatment of the Gamasiab River (Iran) was selected for this study to produce potable water. A hybrid systematic coagulation/filtration/nanofiltration (NF) was considered. Water quality parameters were measured and compared with the standard values. The cesium hydrogen phosphotungstic acid was incorporated into the NF to increase the hydrophilicity and water flux. Polyethersulfone was sulfonated to add the sulfonyl group to the polymer.

Interested yet? Keep reading other articles of 126764-17-8, you can contact me at any time and look forward to more communication. Computed Properties of C9H13Cl.

Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. In an article, author is Le, Son C., once mentioned the application of 367-21-5, Name is 3-Chloro-4-fluoroaniline, molecular formula is C6H5ClFN, molecular weight is 145.562, MDL number is MFCD00007767, category is chlorides-buliding-blocks. Now introduce a scientific discovery about this category, Application In Synthesis of 3-Chloro-4-fluoroaniline.

An Additional Ca2+ Binding Site Allosterically Controls TMEM16A Activation

Calcium (Ca2+) is the primary stimulus for transmembrane protein 16 (TMEM16) Ca2+-activated chloride channels and phospholipid scramblases, which regulate important physiological processes ranging from smooth muscle contraction to blood coagulation and tumor progression. Binding of intracellular Ca2+ to two highly conserved orthosteric binding sites in transmembrane helices (TMs) 6-8 efficiently opens the permeation pathway formed by TMs 3-7 Recent structures of TMEM16K and TMEM16F scramblases revealed an additional Ca2+ binding site between TM2 and TM10, whose functional relevance remains unknown. Here, we report that Ca2+ binds with high affinity to the equivalent third Ca2+ site in TMEM16A to enhance channel activation. Our cadmium (Cd2+) metal bridging experiments reveal that the third Ca2+ site’s conformational states can profoundly influence TMEM16A’s opening. Our study thus confirms the existence of a third Ca2+ site in TMEM16A, defines its functional importance in channel gating, and provides insight into a long-range allosteric gating mechanism of TMEM16 channels and scramblases.

Do you like my blog? If you like, you can also browse other articles about this kind. Thanks for taking the time to read the blog about 367-21-5, Application In Synthesis of 3-Chloro-4-fluoroaniline.

Synthetic Route of 140-53-4, Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. 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 Kim, Hwa-Jung, introduce new discover of the category.

Coating of chromium and titanium carbide on diamond particles in molten LiCl-KCl-NaCl

Diamond particles were coated with chromium (Cr) or titanium (Ti) using a molten salt synthesis (MSS) approach involving lithium chloride (LiCl), potassium chloride (KCl), and sodium chloride (NaCl). Diamond and metal powders were heated at 700-900 degrees C in the MSS to create chromium carbide (Cr7C3) or titanium carbide (TiC) coatings on the diamond particles. Carbide formation was influenced by the dissolved metal content and the diffusion rate. The thickness and morphology of the Cr coating layer was not significantly affected by the molar ratio of the LiCl-KCl-NaCl mixture, however, in terms of the coating atmosphere, it is most valuable using the eutectic LiCl-KCl-NaCl mixture having the molar ratio of 55:33:12 and the lowest melting point. The resulting Cr7C3 and TiC coated surfaces and microstructures were characterized by X-ray diffraction and scanning electron microscopy, respectively. A uniform Cr7C3 and TiC layer formed on the surface of the diamond particles at a relatively low temperature, at which the graphitization of diamond was avoided. The coating layer thickness estimated by particle size analysis increased linearly with coating temperature. The thickness of the Cr- and Ti-coated layers ranged from 1 to 10 and 0.5-1.5 mu m, respectively, which indicated that the TiC coating formed at a much slower rate than the Cr7C3 coating. (C) 2020 Elsevier B.V. All rights reserved.

Synthetic Route of 140-53-4, Each elementary reaction can be described in terms of its molecularity, the number of molecules that collide in that step. The slowest step in a reaction mechanism is the rate-determining step.you can also check out more blogs about 140-53-4.

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. 50-84-0, Name is 2,4-Dichlorobenzoic acid, formurla is C7H4Cl2O2. In a document, author is Alhama, I, introducing its new discovery. Recommanded Product: 2,4-Dichlorobenzoic acid.

Proposal and verification of a new isotherm based on exponential-asymptotic dependence between free and bound chlorides in reinforced concrete

The so-called isotherms represent the relationship between free and bound chlorides in the process of penetration of chloride ions in concrete structures. A new isotherm of the exponential-asymptotic type that corrects and improves the behavior of the classical four dependences in low porosity concrete subjected to high concentrations of chloride is present in this paper. The proposed isotherm has two advantages over the classic ones, in particular compared to that of Langmuir-Freundlich considered the most accurate. On the one hand, it contains only two coefficients so it is easy to adjust to the pairs (free chloride, bound chloride) obtained in experimental tests, on the other, it corrects the inflection contained in the initial stretch of Langmuir-Freundlich dependence. Data coming from experimental tests extracted from the scientific literature are used to fit the coefficients of all isotherms and long-term numerical simulations are performed to reproduce the concentration profiles and verify the consistent and precise behavior of the proposed isotherm to predict the first stage of the service life of the reinforced concrete structures. (C) 2020 Elsevier Ltd. All rights reserved.

If you are hungry for even more, make sure to check my other article about 50-84-0, Recommanded Product: 2,4-Dichlorobenzoic acid.

Related Products of 6574-98-7, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 6574-98-7, Name is 2,4-Dichlorobenzonitrile, SMILES is C1=CC(=CC(=C1C#N)Cl)Cl, belongs to chlorides-buliding-blocks compound. In a article, author is Yang, Sudong, introduce new discover of the category.

Facile and sustainable fabrication of high-performance cellulose sponge from cotton for oil-in-water emulsion separation

Given complexity and diversity of oily wastewater, developing highly efficient separation materials through green and facile strategy are urgently needed. Herein, a smart strategy is demonstrated to transform raw cotton into uniform cellulose sponge for separation oil-in-water emulsion. The raw cotton is directly treated in zinc chloride aqueous solutions through a controllable dissolution process. After regeneration without any further chemical modification and freeze drying, the evolved cellulose sponge, which is composed of partially dissolved cotton fiber and exfoliated regenerated cellulose, exhibits interesting three-dimensional (3D) interconnected hierarchical porous network structure and stable wettability of superoleophobicity (theta(oil) > 150 degrees) under water. Cellulose sponge has excellent underwater superoleophobicity and antifouling property due to the natural hydrophilicity of cellulose. Based on the beneficial 3D hierarchical structure and superwettability, the cellulose sponge can separate highly emulsified oil-in-water emulsions with efficiency up to 99.2% solely under the driving of gravity. Our strategy provides a generic way to convert cellulose-based materials into cellulose porous materials with excellent permeability, separation efficiency, antifouling, and reusability property for oil/water emulsions separation. This economical, environmentally friendly and functional cellulose sponge not only allows natural cotton resources to be used rationally with high value-added, but also effectively solves the problems of oily wastewater.Y

Related Products of 6574-98-7, One of the oldest and most widely used commercial enzyme inhibitors is aspirin, which selectively inhibits one of the enzymes involved in the synthesis of molecules that trigger inflammation. you can also check out more blogs about 6574-98-7.

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 81927-55-1, Name is Benzyl 2,2,2-trichloroacetimidate, molecular formula is C9H8Cl3NO. In an article, author is Ding, Yunji,once mentioned of 81927-55-1, Product Details of 81927-55-1.

Highly porous ceramics production using slags from smelting of spent automotive catalysts

Spent automotive catalysts are the most crucial secondary resources of platinum group metals (PGMs). Currently, the iron-capturing method is one of the most promising technologies for PGMs recycling. The residual smelting slags contain large amounts of CaO, Al2O3, MgO, SiO2, Na2O, and the trace of heavy metals (e.g. Cr, Pb, Ni), which are classified as solid waste or even hazardous waste, which are typically treated by landfills, and poses severe threats to the environment. In this paper, based on the specific chemical composition of smelting slags, ceramic foams with high porosity, low density and good thermal insulation were fabricated by particle-stabilized foams method, where long-chain surfactant hexadecyltrimethylammonium chloride served as the hydrophobic modifier of slag particles and colloidal silica as binding agent. Herein, the influence of sintering temperature and the amount of smelting slag on the physical properties of obtained porous ceramics were systematically investigated. The results showed that porous ceramics with a bulk density of 0.40-0.64 g/cm(3), open porosity of 74.7-83.4%, thermal conductivity of 0.10-0.21 W/(m.K) and compressive strength of 1.04-4.01 MPa can be obtained with the mass ratio of slag: colloidal silica of 2:1, 3:1 and 4:1 sintered at 1000 degrees C for 2 h. The porous ceramics with these unique properties are promising to be applied as thermal insulation materials. This convenient, facile and versatile approach is also expected to fabricate porous ceramics by using other solid waste as raw materials.

Interested yet? Keep reading other articles of 81927-55-1, you can contact me at any time and look forward to more communication. Product Details of 81927-55-1.

Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. , Formula: C4H8BrCl, 6940-78-9, Name is 1-Bromo-4-chlorobutane, molecular formula is C4H8BrCl, belongs to chlorides-buliding-blocks compound. In a document, author is Latif, Azka, introduce the new discover.

First Reported Case of Hyperchloremic Non-Anion Gap Metabolic Acidosis in a Patient Undergoing Continuous Bladder Irrigation for Hemorrhagic Cystitis

Radiation cystitis can present as gross hematuria and occurs secondary to irritation of the bladder urothelium. Continuous bladder irrigation (CBI) is commonly used for the treatment of hemorrhagic cystitis for evacuation of blood clots and to maintain catheter drainage. Most commonly, CBI is performed using 0.9% sodium chloride. We report a 77-year-old female who developed hyperchloremic non-anion gap metabolic acidosis (H-NAGMA) and pulmonary edema secondary to absorption of 0.9% normal saline (NS) from CBI. In such cases, ringer lactate with low concentration (109 mEq) of chloride as compared to NS (154 mEq) can prove to be a suitable alternative.

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 6940-78-9. Formula: C4H8BrCl.

Chemistry, like all the natural sciences, begins with the direct observation of nature¡ª in this case, of matter.870-24-6, Name is 2-Chloroethanamine hydrochloride, SMILES is ClCCN.[H]Cl, belongs to chlorides-buliding-blocks compound. In a document, author is Ibrahim, Mohammed, introduce the new discover, SDS of cas: 870-24-6.

An overview of factors influencing the properties of alkali-activated binders

Alkali activated binders (AABs) are evolving as alternative to Portland cement. They are predominantly synthesized using aluminosilicate materials, such as fly ash, silica fume, metakaolin, etc. However, the synthesis of these binders is very sensitive to several factors. These include the source, constituents and fineness of the precursor materials, type and combination of alkaline activators, quantity of free-water, and type and duration of curing. Though the synthesis and properties of AABs were studied in the past, there is an apprehension towards using this technology by the construction industry due to practical difficulties. These include insufficient information and understanding of the mix design, lack of uniformity in the composition of precursor materials and its possible impact on the properties of these binders. In addition, there is lack of data on the long-term performance of AABs under aggressive exposure conditions, particularly chloride-bearing environment. The findings of research studies conducted so far indicate that the mechanical characteristics of AABs are either equivalent to or better than those of Portland cement concrete. However, some aspects related to the long-term durability of these binders are yet to be fully understood, including fire-resistance. Accordingly, this paper is aimed to present an overview of parameters that affect the properties of AABs and to elaborate the polymerization mechanisms of commonly used precursor materials. Moreover, the performance of AABs exposed to aggressive environmental conditions are presented. In the light of available literature, the review indicates that future research in this area has to be focused on the development of standard specifications and evaluation procedures for the precursor materials and combinations of alkaline activators for a particular source material. In addition, it is realized that the long-term study on the durability aspects of these binders, particularly exposed to chloride-bearing environment requires considerable attention. (C) 2020 Elsevier Ltd. All rights reserved.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 870-24-6 is helpful to your research. SDS of cas: 870-24-6.