NMR spectroscopy

Tribological behavior of double-glow plasma Zirconium-Yttrium alloying on γ-TiAl Cong Huang, Pingze Zhang*, Dongbo Wei, Xiangfei Wei, Xiaohu Chen and Feng Ding (College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China) * Corresponding author: pzzhang_nuaa@126.com Abstract: A Zr-Y alloyed layer was prepared onto the surface of γ-TiAl using double-glow plasma surface alloying technique (DG technique). The results showed that the Zr-Y…

PROCEDURE: Hirko, R. Chemistry 112L General Chemistry I Laboratory, Ninth Edition; bluedoor: Minneapolis, 2015; Experiment 4. Trial P/ppm Abs @ 400 nm / AU Volume beverage / mla Volume dilution water / mla Total volume of diluted sample / mla P in soda / ppm 1 0 .001 2 1.333 .160 3 3.333 .280 4 6.667 .585 U1 2.560 .228 .870 45.610 46.480 205.153 U2 2.607 .232 1.020 50.266 51.386 197.005 U3 3.374 .298 1.196 43.252 49.448 209.244 Ave 204 Unc ±12 RESULTS: The recorded…

Introduction The definition of water hardness, in its simplest form, can be explained as, “the amount of dissolved calcium and magnesium in water.” Water hardness can be attributed to groundwater systems naturally flowing through soil and rock. While doing so, divalent amounts of cations from mineral sources dissolve into the water supply (USGS). Water hardness is not harmful to people’s health. In fact, these minerals can be beneficial, as humans need minerals to survive. However, water…

Introduction Bovine serum albumin (BSA) is a transport protein in cow’s blood stream, similar to Human serum albumin in human blood. It binds different types of drugs for delivery to various parts of the body. One of these drugs is warfarin, a blood anticoagulant. This research project’s focus was on the interaction between BSA and warfarin derivatives; our assumption was that the protein binding site has different affinities for different warfarin derivatives; this was to be determined by…

Paragraph 1 (300 - 500 words) Compare and contrast the crystal structures and crystal chemistry of quartz, α-FePO4 and β-FePO4 To compare quartz, α-FePO4 and β-FePO4, it is essential to look at their crystal structures and crystal chemistry. This can be done by observing their three-dimensional structures as well as their reactions to various degrees of temperature. This particular research takes a look at the structure of FePO4 between temperatures of 294K to 1073K. At lower temperatures,…

Figure1.3: Band gap vs lattice constants diagram for hexagonal nitride compounds. The typical of measured band gap bowing for ternary alloys AlGaN and InGaN is shown by the solid line track[21]. 1.4. Unique Material properties of Gallium Nitride: The unique material properties of GaN engraves it as an prominent semiconductor material for many electronic and optoelectronic devices[18]. • The wide and direct energy band gap sorts GaN as an appropriate materials for device fabrication in the field…

Introduction Stereochemistry alludes to the science that reviews the properties of stereoisomers. It can likewise be characterized as the branch of chemistry concerned about the three-dimensional course of action of particles and atoms and the impact of this on concoction responses. A critical branch of stereochemistry is the investigation of chiral atoms. Stereochemistry is otherwise called 3D science in light of the fact that the prefix "stereo-" signifies "three-dimensionality". The primary…

and used without further purification. The solvents were dried using the standard method and stored over 4 Å molecular sieves prior to use. Melting points were measured using an MEL-TEMP II melting point apparatus and are uncorrected. 1H and 13C NMR spectra were recorded at 300 and 75 MHz, respectively, using a Varian Unity Plus 300 spectrometer. The high-resolution mass spectral data (ESI) were obtained using a Waters SYNAPT G2 mass spectrometer. Absorption spectra were measured using a Varian…

The experimental solutions were analyzed spectrophotometrically to collect the data. The absorbance of these solutions was recording. However, the collected data should not be greater than the given absorbance of p-nitrophenol standard (1.310). If the absorbance of experimental solutions was higher than the standard one, that solution had to be diluted to get the lower number. The maximum time to dilute solution in this experiment was 2. According to the Beer-Lambert Law, the absorbance…

Overall the experiment provided significant data, despite problems with reagent contamination. Iron (III)-thiocyanate complexes in equilibrium, meaning that external and internal forces on the equilibrium can shift toward the reactants or the complex. External forces are changes to the chemical or physical environment that effect the equilibrium. Internal forces are changes to the bonds or chemical nature of the complex itself. These effects are used to study the optimal chromogenic reagent,…