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Showing 1 to 20 of 541 for “"H2O"”.
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Nuosėdų formavimosi sistemose CuSO4 – K4P2O7 – H2O ir CuSO4 – (NH4)4P2O7 – H2O mechanizmo tyrimas /
… compounds can be formed in the CuSO4 – K4P2O7 – H2O system: a single salt Cu2P2O7.5H2O and two dimorph’s both having chemical formula Cu3K2(P2O7)2.3H2O. A previously known form of Cu3K2(P2O7)2.3H2O (we named it Dimorph A) transforms into a novel Dimorph B, which has a different structure. The …
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Brillouin studies of diopside and H2O
… 3 describes the thermodynamic properties of H2O. We determined the melting curve of Ice VII by simultaneous measurements of sound velocity and angle-dispersive synchrotron x-ray diffraction in a membrane-type diamond anvil cell with resistance heating at elevated temperatures to 873 K at …
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A Model for the PTX Properties of H2O-NaCl
In many geologic environments, fluids have compositions that are approximated by the H₂O-NaCl system. When minerals grow in the presence of such fluids, some of the solution is trapped in the growing mineral as fluid inclusions. The salinity, temperature of homogenization, and pressure of …
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Low Temperature Phase Relations in the System H2O-NaCl-FeCl2
The low temperature phase behavior of the system H2O-NaCl-FeCl2 was examined using synthetic fluid inclusions. Experiments were conducted along the 5 wt% NaCl (relative to the total solution) pseudobinary, with FeCl2 concentrations varying from 2 to 33 wt%, and along the pseudobinary defined by …
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Ionization in H2O -- bearing carbon dioxide determined by conductivity measurements
… and carbonation of minerals in contact with H2O-saturated (or nearly saturated) CO2. One explanation for this behavior is that addition of small amounts of H2O to CO2 leads to significant ionization within the fluid (analogous to corrosion in aqueous fluids). The extent of ionization in the …
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Novel Iridium (III) complexes for photocatalytic H2 generation from H2O using sunlight
… intramolecular photocatalytic H2 generation from H2O. A series of heteroleptic iridium monomers and hetrodinuclear Ir-Pt/Pd dimers, which are potential candidates for photocatalytic H2 generation, are described along with preliminary photophysics measurements and photocatalytic H2 production …
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I.The magnetic moment of the proton in H2O ; II.Inelastic collisions in excited Na.
Thesis. 1976. Ph.D.--Massachusetts Institute of Technology. Dept of Physics.
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Entwicklung und Einsatz von Diodenlaser-Spektrometern zur simultanen In-situ-Detektion von CO, O2 und H2O in technischen Verbrennungsprozessen
… zur simultanen In-situ-Detektion von CO, O2 und H2O entwickelt. Dazu mussten neue Methoden zur Unterdrückung der starken optischen Störeinflüsse der Verbrennungsprozesse entwickelt, sowie Lösungen für zahlreiche technische Probleme gefunden werden. Verschiedene Spektrometervarianten konnten in …
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Dynamical and physical conditions of stellar formation : a study of H2O masers associated with galactic H [subscript II] regions
Thesis. 1976. Ph.D.--Massachusetts Institute of Technology. Dept. of Earth and Planetary Science.
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Understanding the molecular-level chemistry of H2O plasmas and the effects of surface modification and deposition on a selection of oxide substrates
… molecules. MS data for the two contaminated H2O samples suggest the primary plasma species are CHx, C2Hx, CH2O, CO, C4Hx, and C3HxO and their corresponding ions. From this study, the detection and decomposition of organic molecules in water was accomplished for the first time with an ICP …
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Experimental study of the effect of H2O-CO2-NaCl fluid immiscibility on the reaction calcite + quartz + rutile = sphene + CO2 at 2 KBAR
The minimum T-XCO₂ location of the reaction boundary calcite + quartz + rutile = sphene + CO₂ has been experimentally determined in H₂0-CO₂-NaCl fluids at 2 kbar. Extent and direction of reaction were monitored by the CO₂ weight change method using natural materials. All bulk compositions contain …
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Uptake and Reaction Mechanisms of CO, H2O, and the Nerve Agent Simulant, DMMP with Single Atom-Modified Zirconium-based Metal-Organic Frameworks
The ever-present threat of exposure to gas-phase toxic compounds motivates the development of materials capable of both the uptake and destruction of such harmful substances. Current protective technologies largely rely on weak physisorption (dispersive) interactions within the micropores of …
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The interaction between silicate minerals and C-O-H bearing melts in the Earth's mantle
… (~180-400 km). Chemical compositions, including H2O contents, of hydrous melts, compatible with those that would form by small degree melting of an upper mantle peridotite at 180 km depth and near adiabatic temperatures, were determined using a series of iterative crystallization experiments. …
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Sulfatderivate zum Aufbau von Funktionsmaterialien
In A2[PtCl2(NH2SO3)2].xH2O (A = K, Rb, NH4; x = 0 oder 2) erfolgt die Koordination der Platinionen sowohl in cis- als auch in trans-Konfiguration. Auch das reine Amidosulfonat K2[Pt(NH2SO3)4]·2H2O konnte erhalten werden. Durch Umsetzung verschiedener Benzolpolysulfonsäuren mit verschiedenen …
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Metal phosphates: From syntheses and structures to applications in sorption, catalysis and teeth erosion protection
… a hydrogen-bonded framework of composition [M(H2O)6](C4H12N2)(HPO4)2 (M = Co, Ni). Also, the compound [Cu(H2PO4)2(4,4'-bipy)2(H2O)2], prepared by non-hydrothermal routes. Thus, the hydrothermal treatment of 1,3-diaminopropane or 1,4-diaminobutane with iron(III) chloride and phosphoric acid in …
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Van Der Waals Interactions Based Rheological Analysis for Electrosterically Stabilized Nano-Sized Alpha Silicon Carbide-Lactobacillus Gg Dispersions
… systems under investigation are the alpha-SiC/H2O/LGG polar based systems. The mathematical analysis for the surface forces, based on the attractive van der Waals forces for the alpha-SiC/H2O/alpha-SiC and alpha-SiC/H2O/LGG polar solvent based systems are presented and discussed. The …
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New Developments in the Crystal Chemistry of Selected Borophosphates and Phosphates
… compounds of systems MxOy–B2O3–P2O5–(H2O) (M = main group or transition metal) which contain complex anionic structures built of interconnected trigonal–planar BO3 and / or BO4 and PO4 groups and their partially protonated species. The main objective of the present work was to …
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