AMMONIUM SALT
Synthesis of Quaternary Ammonium Salt of Piperidine Derivatives
... In conclusion, we have developed a method for the synthesis of quaternary ammonium salt of piperidine which can be use as phase transfer catalyst with good yields. The main advantage of this method has ...
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Effect of Ti Incorporation on Structure and Oxidation Activity of Ammonium Salt of 12-Molybdophosphoric Acid Catalysts
... incorporated ammonium salt of 12- molybdophosphoric acid catalysts in order to study the effect of Ti atoms incorporation on physico- chemical properties of the Keggin ...
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Preparation of chitin-amphipathic anion/quaternary ammonium salt ecofriendly dressing and its effect on wound healing in mice
... of COOH − and NH2 − groups, then through RAFT to add antibacterial and antifouling molecules onto the surfaces. Next, 10 mL of DMF, 36.4 g RAFT reagent, and 28.7 g 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydro- ...
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Investigation of Corrosion Inhibition of Quaternary Ammonium Salt on N80 Steel in 5M HCl Solution
... Abstract: Corrosion inhibition of N80 in 5M HCl solution by pyridine quaternary ammonium salt has been studied by weight loss measurements, potentiodynamic test, Tafel polarization and electrochemical ...
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MODIFICATION OF WOOL AND SILK FIBERS BY PRETREATMENT WITH QUATERNARY AMMONIUM SALT AND DYEING WITH NEW METAL COMPLEX DYE
... A metal complex dye based on acid dye was prepared; this dye proven by NMR study and IR spectroscopy. The dyeing application of the prepared dye on wool and silk fibers showed excellent dyeing properties. Wool and silk ...
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ACUTE TOXICITY OF GLYPHOSATE AMMONIUM SALT AND PARAQUAT COMMONLY USED IN NGAOUNDERE (CAMEROON) ON FRY OF Oreochromis niloticus (CICHLIDAE) LINNAEUS, 1758
... Behavioural responses of fry exposure to glyphosate ammonium salt, paraquat and ammonium glyphosate-paraquat mixture were observed and compared to those of controls. Reactions such as air absorption, ...
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Characterization and bioactivity of novel calcium antagonists - N -methoxy-benzyl haloperidol quaternary ammonium salt
... quaternary ammonium salt derivatives of haloperidol could partly antagonize the contraction of coronary artery and protect myocardial cell against ischemia-reperfusion injury [6, ...
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Turbulence and Cavitation Suppression by Quaternary Ammonium Salt Additives
... quaternary ammonium salt (QAS) deposit control additives (DCAs) affect the rheological properties of cavitating turbulent flows, resulting in an increase in the volumetric efficiency of clean injectors ...
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Effect of Quaternary Ammonium Salt on Shear Bond Strength of Orthodontic Brackets to Enamel
... In this in vitro, experimental study, sample size was calculated to be 12 in each of the four groups for assessment of shear bond strength according to a previous study by Li et al, [9] assuming alpha=0.05, beta=0.2, ...
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Branchial Sodium Transport Mechanisms in Scyliorhinus Canicula: Evidence for Na+/NH4+ and Na+ H+ Exchanges and for A Role of Carbonic Anhydrase
... Nevertheless, injection of an ammonium salt solution produced a 120% increase of the sodium influx, an increase which lasted for at least 4 h, but owing to the small number of animals fo[r] ...
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Reduce the Iron Content in Egyptian Feldspar Ore of Wadi Zirib for Industrial Applications
... In order to remove the mica’s minerals and consequently reduce the iron content, a cationic collector was used [3, 6, 15]. All the mica’s minerals flotation tests were executed using quaternary ammonium ...
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The future of polar organometallic chemistry written in bio-based solvents and water
... CONCEPT While most of these DES studies use solvent systems based on the non-toxic quaternary ammonium salt ChCl, recent studies on the addition of aryllitium reagents to nitriles 26 to [r] ...
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Enantioselective synthesis of β fluoro β aryl α amino pentenamides by organocatalytic [2,3] sigmatropic rearrangement
... The mechanism of this rearrangement process (Scheme 1, illustrated for the formation of 13 from 12) is believed to proceed via initial acylation of isothiourea 10 with ammonium salt 12 to give dicationic ...
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An expeditious and environmentally benign synthesis of dispiro-3-phenylpyrrolothiazoles in ACI/EG eutectic mixture and its antioxidant and antimicrobial activities against urinary tract pathogens
... quaternary ammonium salt eutectic mixture, acetylcholine iodide‑ethylene glycol (ACI/EG) medium brings an efficient environment for the synthesis of dispiropyrrolothiazole with excellent yield in shorter ...
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Preparation of polymer blend membranes based on cellulose acetate and quaternized polyethersulfone for ultrafiltration
... Quaternized PES is found to be compatible with CA. The extent of compatibility of CA with aminated PES under room conditions is 70/30 of CA/QASPES wt. %. Further, blending of CA with quaternized PES results in blend ...
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Key words
... quaternary ammonium salt IM has a chemical structure similar to that of the aminoester DM-11 (Figs 1a and 1b), the two com- pounds seem to differ in their biological ...quaternary ammonium ...
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Processing of Irradiated 241Am Targets by Ion Exchange and Extraction EUR 4409
... Lanthanides may be removed from the transplutonium elements by anion exchange or tertiary ammonium salt extraction from concentrated lithium chloride solutions or by extraction with di-2[r] ...
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Antibacterial, cytotoxic and genotoxic activity of nitrogenated and haloid derivatives of C50–C60 and C70–C120 polyprenol homologs
... polyprenyl ammonium salt using mulberry leaf poly- prenols with triethylamine in the presence of phosphorus oxychloride, and cationic polyprenyl derivatives may be useful for transfection and immunological ...
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The role of surfactant type on morphology and thermal behavior of PET nanocomposites
... of ammonium modified clays the literature [14-17,40] reports that they may be potentially useful for melt compounding and processing of nanocomposites at high ...alkyl ammonium salt (ARGOA, ARGPOA ...
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Hydrodynamic study and influence of physicochemical parameters on gas retention in a submerged membrane bioreactor
... water, ammonium formate solution, solution ammonium formate + salt, synthetic rubber ...for ammonium formate and formate ammonium + salt ...
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