نتایج جستجو برای: cymene xylene

تعداد نتایج: 3670  

Journal: :Bulletin of The Japan Petroleum Institute 1974

2014
Sharada T. rajan

Xylene, an aromatic hydrocarbon is widely used in industry and medical laboratory as a solvent. It is a flammable liquid that requires utmost care during its usage. On exposure the vapours are rapidly absorbed through the lungs and the slowly through the skin. Prolonged exposure to xylene leads to significant amount of solvent accumulation in the adipose and muscle tissue. This article reviews ...

2017
A. C. S. Valderrama G. C. Rojas

A simple and rapid Fourier Transform infrared (FTIR) spectroscopy method was developed to determine the main essential oil components (carvacrol, thymol and p-cymene) in the antimicrobial LDPE films incorporated with oregano (Origanum vulgare) and thyme (Thymus vulgaris) essential oils. The ATR-FTIR spectrum of pure active components (carvacrol, thymol and p-cymene) was characterized, and the r...

2012
Sankarasekaran Shanmugaraju Dipak Samanta Partha Sarathi Mukherjee

Coordination-driven self-assembly of binuclear half-sandwich p-cymene ruthenium(II) complexes [Ru(2)(μ-η(4)-C(2)O(4))(MeOH)(2)(η(6)-p-cymene)(2)](O(3)SCF(3))(2) (1a) or [Ru(2)(μ-η(4)-N,N'-diphenyloxamidato)(MeOH)(2)(η(6)-p-cymene)(2)](O(3)SCF(3))(2) (1b) separately with an imidazole-based tetratopic donor L in methanol affords two tetranuclear metallamacrocycles 2a and 2b, respectively. Convers...

2013
Adria R. Wilson Keyi Sun Miaofang Chi Ryan M. White James M. LeBeau H. Henry Lamb Benjamin J. Wiley

This article describes the solution-phase synthesis of 4 nm gold nanoparticles with 0.7 atom-thick, 1.9 atom-thick, and 3.8 atom-thick layers of Pd on their surfaces. These well-defined core−shell nanoparticles were deposited on a silica support, calcined, and reduced at 300 °C to create alloyed nanoparticles containing 10.9, 20.2, and 28.5% Pd (w/w). Monometallic Pd nanoparticles sintered duri...

Journal: :Applied and environmental microbiology 2002
A Ultee M H J Bennik R Moezelaar

The natural antimicrobial compound carvacrol shows a high preference for hydrophobic phases. The partition coefficients of carvacrol in both octanol-water and liposome-buffer phases were determined (3.64 and 3.26, respectively). Addition of carvacrol to a liposomal suspension resulted in an expansion of the liposomal membrane. Maximum expansion was observed after the addition of 0.50 micromol o...

Journal: :Journal of inorganic biochemistry 2013
Eva A Enyedy Eva Sija Tamás Jakusch Christian G Hartinger Wolfgang Kandioller Bernhard K Keppler Tamás Kiss

Stoichiometry and stability of antitumor ruthenium(II)-η(6)-p-cymene complexes of bidentate (O,O) hydroxypyrone and (O,S) hydroxythiopyr(id)one type ligands were determined by pH-potentiometry, (1)H NMR spectroscopy and UV-Vis spectrophotometry in aqueous solution and in dependence of chloride ion concentration. Formation of mono-ligand complexes with moderate stability was found in the case of...

Journal: :Chemical communications 2015
Luigi R Nassimbeni Nikoletta B Báthori Leena Desiree Patel Hong Su Edwin Weber

The isomers of xylene have been separated by enclathration using three host compounds: 9,9'-bianthryl (H1), 9,9'-spirobifluorene (H2) and trans-2,3-dibenzoylspiro[cyclopropane-1,9-fluorene] (H3). The structures of each host with a single xylene isomer have been elucidated and, for H1, the relative lattice energies of the clathrates with ortho- and para-xylene have been evaluated.

Journal: :health scope 0
zohreh vahdat parast department of environmental health, faculty of medical sciences, tarbiat modares university, tehran, ir iran hassan asilian department of occupational health, faculty of medical sciences, tarbiat modares university, tehran, ir iran; department of occupational health, faculty of medical sciences, tarbiat modares university, tehran, ir iran. tel: +98-2182883564 ahmad jonidi jafari department of environmental health, faculty of medical sciences, iran university, tehran, ir iran

background aromatic organic solvents are extensively used in various industries. xylene is a colorless, transparent liquid, with the characteristic odor of the aromatic hydrocarbons family, which is widely used in industries. adsorption is a conventional method of purifying polluted air containing volatile organic compounds (vocs). zeolite has many unique properties such as high capacity, molec...

Journal: :Journal of the Mexican Chemical Society 2013
Jesús G Estrada Roberto A Sánchez-Delgado

The pharmacological properties of any drug are related to their ability to interact with macromolecular blood components. The interaction of human serum albumin (HSA) and apotransferrin (ATf) with six RuII complexes containing ketoconazole (KTZ), which we have previously reported to be active against Leishmania major and Trypanosoma cruzi, has been investigated by monitoring the tryptophan fluo...

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