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Showing 1 to 20 of 51 for “"nitrobenzene"”.
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Production of aniline from nitrobenzene
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1959.
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The hydrogenation of nitrobenzene over metal catalysts
The catalytic hydrogenation of nitrobenzene is an industrially important reaction used in the commercial production of aniline for use in the polyurethane industry. A mechanism for the reaction was first proposed by Haber in 1898 and has been widely accepted despite never being fully delineated. …
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Extraction of trace quantities of cesium : the aqueous tetraphenylborate-nitrobenzene system
Thesis: B.S., Massachusetts Institute of Technology, Department of Chemistry, 1960
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Partial Pressure of Hydrogen Chloride Above its Solutions in Non-aqueous Solvents. II Nitrobenzene Solutions
It has been pointed out by Rodebush and Ewart and in the first paper of this series that the vapor pressure of a volatile acid solute like hydrogen chloride provides a measure of the basicity of the solvent. The importance of basicity in determining the strength of acids in solution has long been …
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Replacement of homogeneous acids in the conversion of meta-phenylenediamine to resorcinol by Heterogeneous Analogues
… to resourcinol in South Africa is via meta-dinitrobenzene due to the large-scale production of nitrobenzene from benzene. Since meta-dintrobenzene is formed as a side-product during the production of nitrobenzene and is hydrogenated quite easily, the acid hydrolysis of MPDA to resorcinol will …
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Temperature effects on the electronic conductivity of single-walled carbon nanotubes
… of three types: pristine; functionalized with a nitrobenzene covalent functionalization, which are expected to display poor electronic conductivity; and functionalized with a carbene covalent functionalization, which are expected to display pristine-like conductivity. Measurements were taken via …
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The Partial Pressure of Hydrogen Chloride from its Solutions in Non-Aqueous Solvents at 25° C. III. Ethylene Glycol Solutions
… carried out their work using benzene and nitrobenzene as solvents. Their results show that solutions of hydrogen chloride in benzene and nitrobenzene agree with Henry's law. Also a method of calculating the equilibrium constants of hydrogen chloride in such solvents was devised. |Since …
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A Study of the Role of Hydroperoxides in the Degradation and Stabilisation of Polymers
… The efficiency of these complexes as well as nitrobenzene and plant pigments as photoactivators in the autoxidation of natural rubber was looked into. The mechanism of action of nitrobenzene in natural rubber was found to be due to the generation of singlet oxygen; the latter causing …
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A study of the use of a steepest descent technique in the solution of the Hartree-Fock equations and its application to selected systems
… systems of the calicene dianion, nitrobenzene and m-chloronitrobenzene, 3. the first complete SCFMO binding energy curves for the Cl₂-benzene charge-transfer complex, including several configurations, 4. studies of selectivity for the protonation of (addition of Bronsted acids to) …
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The Partial Pressure of Hydrogen Chloride Above its Solutions in Non-Aqueous Solvents, in Monohalobenzene Solutions
… a consideration of a few examples. Water and nitrobenzene are two liquids having high dielectric constants. later is a strongly basic solvent and nitrobenzene weakly basic. Hydrogen chloride is very soluble in water and forms an ionized complex with the solvent. However, in nitrobenzene the …
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Deuterium NMR relaxation studies of liquids in confined geometries
… such as pyridine-d$\sb5$, aniline-d$\sb5$ and nitrobenzene-d$\sb5$ whereas the saturated cyclic hydrocarbon liquids of cyclohexane-d$\sb{12}$ and cis-decalin-d$\sb{18}$ represent the weakly interacting liquids. In a first approximation, toluene-d$\sb1$ and dioxane-d$\sb8$ are chosen as examples …
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Novel palladium-catalyzed synthesis of 3-substituted indoles and its application toward the total synthesis of indolactam V
… acid ethyl ester with substituted 2-bromo-l-nitrobenzenes. Alternatively, sequential vicarious nucleophilic substitution of substituted nitrobenzenes and Knoevenagel condensation with formaldehyde was used to prepare 2-nitrostyrenes. Palladium catalyzed N-heteroannulation of 2-nitrostyrenes …
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Pathways to next-generation redox flow batteries
… used to analyze a group of experimentally tested nitrobenzene derivatives to find optimal redox active material potential, molecular weight, and salt molecular weight for next-generation nonaqueous RFBs. Nitrobenzene derivatives are found to have a battery price of 260 per kWh-1 when used with …
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Interactions of Phenolic Monomers With Digestion and Metabolism
… and vanillin in alkali extracts and products of nitrobenzene oxidation. Intact roughages and isolated cell walls were examined. Most alkali-labile phenolics were present in both the cell soluble and cell wall fractions, whereas nitrobenzene oxidation products were restricted to cell wall …
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Thermodynamics of the partition of oxine and its Ni(II) and Fe(III) chelates
… for the following systems: water-benzene, water-nitrobenzene, water-toluene, and water-chloroform. The pertinent thermodynamic values for the partitions are as follows: a. Water-benzene: log P = 2.44; ΔH = -2.0 kcal/mole; ΔS° = 4.5 e.u. b. Water-nitrobenzene: log P = 2.67; ΔH = -1.7 kcal/mole; …
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The temperature dependence of the electro-optic kerr effect in solutions
… of 2-methyl-4-nitroaniline, p-nitroaniline, nitrobenzene, aniline, and toluene as solutions in 1, 4-dioxane has been studied. The Kerr effect measurements combined with dipole moment, depolarisation ratio, dielectric, and electronic polarisation measurements have been used to calculate the …
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Liquid Phase Carbon-Thirteen Dynamic Nuclear Polarization Study of Monosubstituted Aromatic Compounds
… aromatic compounds, such as, anisole, nitrobenzene and halobenzenes. These substitute groups covered a wide range of electronic effects from strong electron donating groups to strong electron withdrawing groups. Hammett linear free energy relationship was used to quantitatively study …
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NEW GO- AND RGO-BASED MORALS AND CARBENE-FUNCTIONALIZED GOLD NANOPARTICLES FOR HETEROGENEOUSLY CATALYZED REDUCTIONS
… and evaluated for their ability to reduce nitrobenzene. This work focuses on two main classes of materials that have recently attracted growing interest in the field of heterogeneous catalysis. The first class comprises the so-called MORALs, an acronym for Metal ORganic ALloys. These hybrid …
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