نتایج جستجو برای: 4 dioxane

تعداد نتایج: 1304616  

Journal: :International journal of scientific research in chemistry 2023

From e.m.f measurements of cells (C-1) and (C-2) it has been established that modified Davies equation is valid in dioxane-water media at least upto 30% dioxane by weight. E0m values Hg | Hg2Cl2(s), Cl- electrode having 10, 20 weight the corresponding thermodynamic parameters have determined 288.15, 298.15, 308.15 318.15 0K. (Pt),H2 ( l atm ) HCl(m1) x% Dioxane (100-x)% H2O, Hg2Cl2(s) … BaCl2(m...

Journal: :Applied and environmental microbiology 2013
Christopher M Sales Ariel Grostern Juanito V Parales Rebecca E Parales Lisa Alvarez-Cohen

The bacterium Pseudonocardia dioxanivorans CB1190 grows on the cyclic ethers 1,4-dioxane (dioxane) and tetrahydrofuran (THF) as sole carbon and energy sources. Prior transcriptional studies indicated that an annotated THF monooxygenase (THF MO) gene cluster, thmADBC, located on a plasmid in CB1190 is upregulated during growth on dioxane. In this work, transcriptional analysis demonstrates that ...

2013
Ai-Ping Zhang Chuan-Fu Liu Run-Cang Sun Jun Xie

Three-step extraction of lignin fractions from ball-milled sugarcane bagasse (SCB) was studied with 96% dioxane, 50% dioxane, and 80% dioxane containing 1% NaOH at boiling temperature followed by purification to remove hemicelluloses. The total yields of hemicelluloses and lignin were 15.8% and 7.2% based on dried SCB, respectively. In the first step, 5.1% lignin (70.8% of the total extracted l...

The electronic structure, Non-Linear Optical (NLO) properties and Natural Bonding Orbital (NBO) analysis of 1,4-dioxane were investigated using the theoretical study of Density Functional Theory (DFT) calculations at the B3LYP/6-311G (d,p) level of theory. The optimized structure is nonlinear as indicated from the dihedral angles.  Natural bonding orbital analysis has been analyzed in terms...

2016
Stuart A. Surmann Gellert Mezei

Crystals of bis-(tetra-butyl-ammonium) di-μ3-chlorido--tris-(μ2-4-iodo-pyrazolato-κ2N:N')tris-[chlorido-cuprate(II)] 1,4-dioxane hemisolvate, (C16H36N)2[Cu3(C3H2IN2)3Cl5]·0.5C4H8O or (Bu4N)2[CuII3(μ3-Cl)2(μ-4-I-pz)3Cl3]·0.5C4H8O, were obtained by evaporating a solution of (Bu4N)2[{CuII(μ-OH)(μ-4-I-pz)} n CO3] (n = 27-31) nanojars in chloro-form/1,4-dioxane. The decomposition of chloro-form in t...

Journal: :Journal of Hazardous Materials 2021

This study used integrated omics technologies to investigate the potential novel pathways and enzymes for 1,4-dioxane degradation by a consortium enriched from activated sludge of domestic wastewater treatment plant. An unclassified genus belonging Xanthobacteraceae increased significantly after magnetic nanoparticle-mediated isolation degraders. Species with relatively higher abundance (> 0.3%...

Journal: :Bioorganic & medicinal chemistry 2007
Ha Young Kim Richard J Kuhn Chinmay Patkar Ranjit Warrier Mark Cushman

The crystal structure of the Sindbis virus capsid protein contains one or two solvent-derived dioxane molecules in the hydrophobic binding pocket. A bis-dioxane antiviral agent was designed by linking the two dioxane molecules with a three-carbon chain having R,R connecting stereochemistry, and a stereospecific synthesis was performed. This resulted in an effective antiviral agent that inhibite...

Journal: :Acta Crystallographica Section E Structure Reports Online 2011

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