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2,813 Newest Publications about the topic sulfur

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Effects of curing systems and polysulfonamide pulp on the curing characteristics, mechanical properties, and swelling behavior of ethylene–propylene–diene elastomer composites

15-10-2010 | Jia, Xiaolong; Yu, Yunhua; Li, Gang; Sui, Gang; Li, Peng; Yang, Xiaoping, Journal of Applied Polymer Science, 2010

The effects of three curing systems and polysulfonamide (PSA) pulp on the curing characteristics, mechanical properties, and swelling behavior of ethylene–propylene–diene elastomer (EPDM) composites were investigated. The maximum torque value and the optimum curing time were highest for EPDM ...

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Sulfur isotope analysis of cinnabar from Roman wall paintings by elemental analysis/isotope ratio mass spectrometry – tracking the origin of archaeological red pigments and their authenticity

15-10-2010 | Spangenberg, Jorge E.; Lavrič, Jošt V.; Meisser, Nicolas; Serneels, Vincent, Rapid Communications in Mass Spectrometry, 2010

The most valuable pigment of the Roman wall paintings was the red color obtained from powdered cinnabar (Minium Cinnabaris pigment), the red mercury sulfide (HgS), which was brought from mercury (Hg) deposits in the Roman Empire. To address the question of whether sulfur isotope signatures can ...

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Photochemical degradation of natural organic sulfur compounds (CHOS) from iron‐rich mine pit lake pore waters – an initial understanding from evaluation of single‐elemental formulae using ultra‐high‐resolution mass spectrometry

15-10-2010 | Herzsprung, Peter; Hertkorn, Norbert; Friese, Kurt; Schmitt‐Kopplin, Philippe, Rapid Communications in Mass Spectrometry, 2010

In order to better understand the chemical diversity of dissolved organic matter (DOM) in iron‐rich mine waters, a variety of sediment pore waters was analysed by means of ultra‐high‐resolution Fourier transform ion cyclotron resonance mass spectrometry (FTICRMS). A considerable number of the DOM ...

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Adsorptive desulfurization of propylene derived from bio-ethanol

14-10-2010 | T. Yamamoto, J. Chaichanawong, N. Thongprachan, T. Ohmori, A. Endo, Adsorption, 2010

We studied adsorption characteristics of a series of LTA zeolite as an adsorbent for desulfurization of propylene, that was produced from bioethanol by ethanol-to-olefin (ETO) conversion. A breakthrough curve (BTC) for adsorption of methanethiol, as one of the sulfur impurities of propylene ...

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Photochemical reduction of sulfur in the presence of ZnO nanoparticles in ethanol

14-10-2010 | A. L. Stroyuk, V. V. Shvalagin, I. E. Kotenko, S. Ya. Kuchmii, V. F. Plyusnin, Theoretical and Experimental Chemistry, 2010

The photochemical reduction of sulfur by the action of ZnO nanoparticles of various shapes and sizes under the conditions of stationary and pulsed photoexcitation was studied. The mechanism of this process was proved; the main route to the formation of the reaction product zinc sulfide is ...

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Synthesis and characterization of ruthenium heterocyclic-thiocarboxylate complexes

14-10-2010 | Mohammad El-khateeb, Taghreed M. A. Jazzazi, Helmar Görls, Tareq M. A. Al-Shboul, Matthias Westerhausen, Transition Metal Chemistry, 2010

The cyclopentadienyl ruthenium complexes CpRuL2SCO-het (Cp = η5-C5H5; L2 = 2PPh3 (1), dppe (2)) bearing heterocyclic thiocarboxylate ligands have been synthesized from the reaction of CpRuL2SH with heterocyclic acid chlorides (ClCO-2-C4H3S (a); ClCO-2-C4H3O (b); ClCO-1-C4H8N (c)). Bubbling of CO ...

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Diorganotin(IV) complexes with 2-benzoylpyridine and 2-acetylpyrazine N(4)-phenylthiosemicarbazones: Synthesis, crystal structures and biological activities

14-10-2010 | Ming-Xue, Li , Dong, Zhang , Li-Zhi, Zhang , Jing-Yang, Niu , Bian-Sheng, Ji, Journal of Organometallic Chemistry, 2010

Four diorganotin(IV) complexes [(Me)2Sn(L1)(CH3COO)]⋅CH3CH2OH (1), [(Ph)2Sn(L1)(CH3COO)]⋅CH3CH2OH (2), [(Me)2Sn(L2)Cl] (3) and [(Ph)2Sn(L2)(CH3COO)] (4) where HL1=2-benzoylpyridine N(4)-phenylthiosemicarbazone, HL2=2-acetylpyrazine N(4)-phenylthiosemicarbazone have been synthesized and ...

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Electronic and Optical Properties of Doped and Undoped (TiO2)n Nanoparticles

14-10-2010 | S. A. Shevlin; S. M. Woodley, Journal of Physical Chemistry C, 2010

The geometry and electronic structure of bare and anion-doped nanoscale (TiO2)n clusters, where n = 1, 2, 3, 4, 5, 6, 7, 10, and 13, were calculated using density functional theory (DFT) and time dependent density functional theory (TDDFT). Initial (TiO2)n structures were chosen from the global ...

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Highly Sensitive and Selective “Turn-on” Calcium Cation Sensing from a Dendronic Terthiophene Tetraethylene Glycol (TEG) Molecule

14-10-2010 | Yushin Park; Dahlia C. Apodaca; Jonathan Pullen; Rigoberto C. Advincula, Journal of Physical Chemistry B, 2010

A molecule consisting of a branched or dendronic terthiophene with tetraethylene glycol moiety (3T5O) was synthesized for highly sensitive and selective calcium ion detection in solution. The sulfur atoms of the terthiophene dendron moiety contribute to the metal−ligand complexation of calcium ...

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Recent Changes in Particulate Air Pollution over China Observed from Space and the Ground: Effectiveness of Emission Control

13-10-2010 | Jintai Lin; Chris P. Nielsen; Yu Zhao; Yu Lei; Yang Liu; Michael B. McElroy; Jintai Lin; Chris P. Nielsen; Yu Zhao; ..., Environmental Science & Technology, 2010

The Chinese government has moved aggressively since 2005 to reduce emissions of a number of pollutants including primary particulate matter (PM) and sulfur dioxide (SO2), efforts inadvertently aided since late 2008 by economic recession. Satellite observations of aerosol optical depth (AOD) and ...

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