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4,841 Newest Publications about the topic sulfur

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Efficient Removal of Sulfur Hexafluoride (SF6) Through Reacting with Recycled Electroplating Sludge

06-Jun-2013 | Jia Zhang; Ji Zhi Zhou; Qiang Liu; Guangren Qian; Zhi Ping Xu, Environmental Science & Technology, 2013

This paper reports that recycled electroplating sludge is able to efficiently remove greenhouse gas sulfur hexafluoride (SF6). The removal process involves various reactions of SF6 with the recycled sludge. Remarkably, the sludge completely removed SF6 at a capacity of 1.10 mmol/g (SF6/sludge) at ...

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Improvement in the One‐Carbon Chain Extension of Esters with Dimethylsulfoxonium Methylide

05-Jun-2013 | Hoa Luong, Eduard Luss‐Lusis, Gerald J. Tanoury, William A. Nugent, European Journal of Organic Chemistry, 2013

Abstract A recent report suggests that the reaction of dimethylsulfoxonium methylide with esters does not produce a chain‐extended sulfur ylide as previously reported, but rather affords the corresponding carboxylate salt. We have investigated this assertion by using a combination of ab initio ...

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Copper-Catalyzed Annulation of Amidines for Quinazolines Synthesis

05-Jun-2013 | Qian Zhang; Yunhe Lv; Yan Li; Tao Xiong; Weiya Pu; Hongwei Zhang; Kai Sun; Qun Liu, Chemical Communication, 2013

An efficient Cu-catalyzed synthesis of quinazolines via the C–N formation reactions between N–H bonds amidines and C(sp3)–H bonds adjacent to sulfur or nitrogen atom in the commonly used solvents, such as: DMSO, DMF, DMA, NMP or TMEDA, followed by intramolecular C–C bond formation reactions was ...

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The Doubtful Environmental Benefit of Reduced Maximum Sulfur Limit in International Shipping Fuel

05-Jun-2013 | Thomas Mestl; Grunde Løvoll; Erik Stensrud; Arnaud Le Breton, Environmental Science & Technology, 2013

On January 1st, 2012, the maximum limit for sulfur concentration in marine fuels on the high seas was lowered from 4.50% to 3.50% by the International Maritime Organization (IMO). It was one of a series of planned steps toward reducing the negative environmental and health impacts of ...

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Phase Equilibria Containing Gas Hydrate of Carbon Dioxide, Sulfur Dioxide, and Water Mixtures

04-Jun-2013 | Sun Hyung Kim; Cheol Huh; Seong-Gil Kang; Jeong Won Kang; Chul Soo Lee, Journal of Chemical & Engineering Data, 2013

Three- and four-phase hydrate equilibria for mixtures composed of carbon dioxide, sulfur dioxide and water were measured at pressures up to 5.00 MPa. Using Duhem’s theorem on phase equilibrium, incipient hydrate-forming temperatures at given pressures with overall loading compositions of all ...

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Synthesis of [N(CH3)4]2O3SOSO2(s) and [N(CH3)4]2[(O2SO)2SO2]·SO2(s) Containing (SO4)(SO2)x2–x = 1, 2, Members of a New Class of Sulfur Oxydianions

04-Jun-2013 | Pablo Bruna; Andreas Decken; Friedrich Grein; Jack Passmore; J. Mikko Rautiainen; Stephanie Richardson; Tom Whidden, Inorganic Chemistry, 2013

One mole equivalent of SO2 reversibly reacts with [N(CH3)4]2SO4(s) to give [N(CH3)4]2S2O6(s) (1) containing the [O3SOSO2]2–, shown by Raman and IR to be an isomer of the [O3SSO3]2– dianion. The experimental and calculated (B3PW91/6-311+G(3df)) vibrational spectra are in excellent agreement, and ...

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A retrievable and highly selective fluorescent sensor for detecting copper and sulfide

03-Jun-2013 | Author(s): Cunji Gao , Xiao Liu , Xiaojie Jin , Jiang Wu , Yujie Xie , Weisheng Liu , Xiaojun Yao , Yu Tang, Sensors and Actuators B: Chemical, 2013

Publication date: August 2013 Source:Sensors and Actuators B: Chemical, Volume 185 Author(s): Cunji Gao , Xiao Liu , Xiaojie Jin , Jiang Wu , Yujie Xie , Weisheng Liu , Xiaojun Yao , Yu Tang A new selective fluorescent sensor for Cu2+ and S2−, ...

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Spectroscopy and Photophysics of Bifunctional Proton Donor–Acceptor Indole Derivatives

03-Jun-2013 | Volha Vetokhina; Michał Kijak; Teodozja M. Lipinska; Randolph P. Thummel; Jerzy Sepiol; Jacek Waluk; Jerzy Herbich, Journal of Physical Chemistry A, 2013

We report spectroscopic and photophysical studies of a series of selected indole derivatives in solutions and under supersonic jet isolation conditions. All the compounds can assume two rotameric forms, syn and anti. The bifunctional molecules containing both the hydrogen bond donor (indole NH ...

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Electrochemical Oxidation of Wine Polyphenols in the Presence of Sulfur Dioxide

03-Jun-2013 | Olga Makhotkina; Paul A. Kilmartin, Journal of Agricultural and Food Chemistry, 2013

Electrochemical oxidation of three representative wine polyphenols (catechin, caffeic acid, and quercetin) in the presence of sulfur dioxide in a model wine solution (pH = 3.3) was investigated. The oxidation was undertaken using chronoamperometry at a rotating glassy carbon rod electrode, and ...

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Comparison of the intracellular behavior of gold (Au) and indium (In) in testicle after their parenteral administration

01-Jun-2013 | Samira Maghraoui; Ahlem Ayadi; Aouatef Ben Ammar; Mohamed Habib Jaafoura; Pierre Galle; Ali El Hili; Leila Tekaya, Journal of Electron Microscopy, 2013

The subcellular behavior of several mineral elements was studied using modern techniques of observation like transmission electron microscopy and analysis like electron probe microanalysis and secondary ion mass spectrometry. In the present ultrastructural and analytical investigations, we ...

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