Structure of a Water-Soluble Polysaccharide from the Seeds of Cassia angustifolia A water-soluble galactomannan consisting of D-galactose and D-mannose in the molar ratio 3:2 has been isolated from the seeds of CASSIA ANGUSTIFOLIA. Hydro... N Alam,PC Gupta - 《Planta Medica》 被引量: 70发表...
The situation is particularly complicated in the presence of surface charges that can induce long-range orientational ordering of water molecules, which in turn dictate diverse processes, such as mineral dissolution, heterogeneous catalysis, and membrane chemistry. To characterize the fundamental properties...
Cover Picture: The Structure of Water in p‐Sulfonatocalix[4]arene (Chem. Eur. J. 37/2011)aromaticitycalixarenesneutron diffractionstructure elucidationwater chemistrydoi:10.1002/chem.201190181Katharina FuckeKirsty M. AndersonMaria H. FilbyMarc Henry...
FTIR analysis of water structure and its influence on the flotation of arcanite (K_2SO_4) and epsomite (MgSO_4 · 7H_2O) The flotation chemistry of soluble salts has been studied for many decades. In this work, the flotation behavior of arcanite (K_2SO_4) and epsomite (MgSO_4... ...
The structure of water in various amino acid solutions was examined by Raman spectroscopy and 1H NMR. Analyses of the relative intensity (C value) of the O−H stretching Raman band corresponding to an in-phase collective vibration of O−H oscillators that are connected by hydrogen bonds reve...
The other widely-cited anomalous property of water is its highboiling point. As this graph shows, a molecule as light as H2O "should" boil at around –90°C; that is, it would exist in the world as a gas rather than a liquid if H-bonding were not present. Notice that H-bonding is...
Structure and Dynamics of Cold Water Super-Earths: The Case of Occluded CH4 and its Outgassing We study the transport of methane in the external water envelopes surrounding water-rich super-Earths and estimate its outgassing into the atmosphere. We i... A Levi,D Sasselov,M Podolak - 《Astroph...
The effects of surface chemistry on the isotherm thickness and structure of the adsorbed water layer as well as the isosteric heat of adsorption and entropy of adsorption were studied using attenuated total reflection infrared spectroscopy. The degree of hydrophilicity seems to distinctively change the ...
Instead, copious quantities of CO{sub 2} were formed, the source of which was coordinated EDTA. 29 refs., 8 figs., 1 tab. 展开 关键词: inorganic, organic, physical and analytical chemistry synthetic fuels edta structural chemical analysis ions ruthenium complexes water oxidation catalytic effects...
(Web): 19 June 2010Effect of ions on the structure of water*Yizhak Marcus‡Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, Israel Abstract: Water is a highly structured liquid, as indicated by its stiffness (cohesive energydensity) and being ordered (large entropy of ...