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Showing 1 to 20 of 200 for “"reaction products"”.
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Studies Related to Phosphate Reaction Products in Soils
Made available in DSpace on 2014-12-04T20:17:14Z (GMT). No. of bitstreams: 1 6206256.pdf: 4737130 bytes, checksum: f56549e928a8692eac17289d7ee5f26a (MD5) Previous issue date: 1962
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Processing of Aluminum Alloys Containing Displacement Reaction Products
… mechanical alloying. Exothermic displacement reactions could be initiated in the powders either by mechanical alloying alone or by heat treating the mechanically alloyed powders. Exponential relationships developed between the initiation time of the reaction and the mechanical alloying charge …
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Photochemical Reaction Products of Polycyclic Aromatic Hydrocarbons Adsorbed at an Air-Water Interface
… however, not much is known about the degradation products themselves. Aqueous solutions of naphthalene, acenaphthene, 9<i>H</i>-fluorene, phenanthrene and pyrene were subjected to UVB light in a bulk-phase and a thin-film reactor to assess the identity of the formed photodegradation products. To …
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A Matrix Isolation Spectroscopic Investigation Into the Reaction Products of Vanadium Metal Atoms With Propene
The products of vanadium metal atom reactions with propene and some propene isotopomers (propene-d6 and propene-3,3,3-d3) are investigated using FT-IR matrix isolation. The major product from the condensation of V atoms with propene at elevated mole ratios is found to be propane (C3H8), the …
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A Matrix Isolation Spectroscopic Investigation of the Reaction Products of Transition Metal Centres With Ethene and Water
The reaction products of thermally generated atomic V with ethene and ethene isotopomers have been investigated by matrix isolation ultraviolet visible and Fourier transform infrared (FTIR) spectroscopy. When V is deposited into matrices of pure Ar, evidence for V and V2 are present in the …
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The effect of brewer’s spent grain melanoidins on the formation of Maillard reaction products in food model systems
The Maillard reaction (MR) plays a critical role in determining the final quality of foods and is a key focus in food science research. Numerous studies have explored various strategies that have the common objectives of reducing the formation of potentially toxic compounds, enhancing the formation …
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Formation of Maillard Reaction Products and Chlorogenic Acid-Quinone Induced Green Pigments in Gluten-Free Pretzels Made Using Sunflower Flour
<p>The two color-developing reactions that occur when soft pretzels are baked using sunflower flour (SFF) in aqueous alkali environment are chlorogenic acid (CGA)-quinone induced greening and Maillard browning. This study aimed to determine how CGA content in two different SFFs containing 45% and …
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Optimizing Adsorption Energies of Reaction Products and Intermediates on Metal/Metal Oxide Catalysts to Achieve High Activity and Tunable Selectivity in Solid-Gas Phase Reactions
<p>The solid-gas phase reactions, such as CO2 hydrogenation, the Fischer-Tropsh process, CO oxidation, and ammonia synthesis are one of the heterogenous catalytic reactions which have been emerged as a critical process in chemical and energy industries for a sustainable future. It needs a catalyst …
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Laboratory study of the atmospheric heterogeneous oxidation of benzo[a]pyrene
… PAHs are carcinogenic and mutagenic, and the reaction of PAHs in the atmosphere can significantly alter their health effect. The heterogeneous reaction of particle-phase benzo[a]pyrene (BaP) with atmospheric oxidants ozone (O₃) and hydroxyl radical (OH) was investigated by simulating …
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Alkali attack of coal gasifier refractory lining
… found in nonslagging coal gasifiers. The reaction products that form when refractory linings in coal gasifiers are exposed to alkali impurities (sodium or potassium) were experimentally determined. Analysis of selected physical and chemical properties of the reaction products, which …
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Searching for potential markers for monitoring the presence of opiates in urine exposed to oxidising adulterants
… (nitrite, PCC and hypochlorite), stable reaction products were identified in urine. The structures of 12 reaction products were elucidated using high resolution mass spectrometry and nuclear magnetic resonance spectroscopy, where possible. The reaction products were characterised to be: …
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The use of red tropical soils as pozzolanas: reactions, products and properties
… required to produce maximum strength. The reaction between the soil and lime is mainly a diffusion controlled process. Most of the reaction takes place within five to seven days and the reaction within this period obeys Jander's diffusion equation for solid state reactions. Based on the …
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Early Stages of the Aluminothermic Process: Insights into Separation and Mould Filling
… high-temperature synthesis (SHS) type reaction for producing primarily thermite steel and alumina slag at high temperatures during the welding of rails. In this work, an investigation on the early stages of the aluminothermic process, the separation of AT reaction products and mould …
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Biochemical Studies on Enzymatic Treatment of Pulp and Paper Mill Biosludge and Polymeric Lignin
… suggested oxidation and repolymerization of reaction products. We determined crystal structures of dye-decolorizing peroxidases (DyPs) FC2591 (from Frankia casuarinae), PF3257 (from Pseudomonas fluorescens), and PR9465 (from Pseudomonas rhizosphaerae). Using structure-based site-directed …
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Destruction of biological tetrapyrrole macrocycles by hypochlorous acid and its scavenging by lycopene
… free radicals such as hydroxyl radical by Fenton reaction. The exact source and mechanism by which the free iron is generated is not clearly understood. This work establishes a mechanistic link between high HOCl and elevated free iron. Our results show that HOCl can mediate heme destruction from …
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Mercury Photosensitized Oxidations in the Gas Phase
… some hydrocarbon alkenes with molecular oxygen. Products have been identified and variations in product yields studied in detail as a function of alkene/oxygen ratio, total pressure, incident light intensity and time for 2-methyl propene. The reactions of propene and butene-1 have also been …
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A Study of the Structure of Bovine Casein Micelles and the Secondary Phase of Milk Coagulation Using Immobilized Enzymes
… and immobilized (neuraminidase). Analysis of the reaction products gave us an indication of the surface structure of the micelle.
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