Characterization of sulfur exchange reaction between polysulfides and elemental sulfur using a 35S radioisotope tracer method

2003 ◽  
pp. 842-843 ◽  
Author(s):  
Shigeru Yamada ◽  
Danhong Wang ◽  
Songri Li ◽  
Megumi Nishikawa ◽  
Eika Weihua Qian ◽  
...  
Keyword(s):  
Exchange Reaction ◽  
Elemental Sulfur ◽  
Tracer Method ◽  
Sulfur Exchange ◽  
Radioisotope Tracer

scholarly journals The unrevealed potential of elemental sulfur for the synthesis of high sulfur content bio-based aliphatic polyesters

2020 ◽  
Vol 11 (2) ◽  
pp. 241-248 ◽  
Author(s):  
Martín E. Duarte ◽  
Birgit Huber ◽  
Patrick Theato ◽  
Hatice Mutlu
Keyword(s):  
Exchange Reaction ◽  
Functional Properties ◽  
Sulfur Content ◽  
Disulfide Bonds ◽  
Elemental Sulfur ◽  
Aliphatic Polyesters ◽  
High Sulfur Content ◽  
Sulfur Containing ◽  
Sulfur Exchange

We introduce a novel sulfur-containing polyester derivative based on a renewable monomer bearing secondary disulfide groups. Base-mediated sulfur exchange reaction of disulfide bonds using S8 delivers polyesters with tailored functional properties.

Synthesis and Redox Reactions of Binuclear Zinc(II)-thiolate Complexes with Elemental Sulfur

2021 ◽  
Author(s):  
Tilak Naskar ◽  
Nabhendu Pal ◽  
Amit Majumdar
Keyword(s):  
Redox Reactions ◽  
Elemental Sulfur ◽  
Synthesis And Characterization ◽  
Thiolate Complexes

Synthesis and characterization of a series of new binuclear Zn(II) complexes bearing (i) terminal H2O/OH, (ii) bridging thiolates, (iii) bridging thiocarboxylates, (iv) bridging carboxylates, and (v) bridging carboxylate bearing free...

Activation of Bis(guanidinate)lanthanide Alkyl and Aryl Complexes on Elemental Sulfur: Synthesis and Characterization of Bis(guanidinate)lanthanide Thiolates and Disulfides

2010 ◽  
Vol 49 (12) ◽  
pp. 5715-5722 ◽  
Author(s):  
Zhengxing Zhang ◽  
Lixin Zhang ◽  
Yanrong Li ◽  
Longcheng Hong ◽  
Zhenxia Chen ◽  
...  
Keyword(s):  
Elemental Sulfur ◽  
Synthesis And Characterization ◽  
Aryl Complexes

Characterization of Sulfidation Roasting of an Iron-Rich Manganese Oxide Ore With Elemental Sulfur

2016 ◽  
pp. 385-394
Author(s):  
Tao Jiang ◽  
Li Qin ◽  
Zhixiong You ◽  
Yuanbo Zhang ◽  
Guanghui Li
Keyword(s):  
Manganese Oxide ◽  
Elemental Sulfur ◽  
Manganese Oxide Ore

scholarly journals Darstellung und Charakterisierung von Tetrabutylammonium-Tetraiodooxotechnetat(V), (TBA) [TcOI4] / Preparation and Characterization of Tetrabutylammonium Tetraiodooxotechnetate(V), (TBA)[TcOI4]

1981 ◽  
Vol 36 (2) ◽  
pp. 138-140 ◽  
Author(s):  
G. Peters ◽  
W. Preetz
Keyword(s):  
Raman Spectrum ◽  
Exchange Reaction ◽  
Vibrational Spectra ◽  
Ligand Exchange ◽  
Resonance Raman ◽  
The Other ◽  
Resonance Raman Spectrum ◽  
Ligand Exchange Reaction ◽  
Complex Ion

Abstract Pure (TBA)[TcOI4] is prepared from (TBA)[TcOCl4] by ligand exchange reaction with Nal in acetone. The vibrational spectra indicate C4v symmetry for the complex ion. On excitation with the 514.5 nm line of an Ar-laser a resonance Raman spectrum is obtained showing v(TcO) = 996 cm-1 and four of its overtones, symmetrically surrounded by groups of bands arising as well from the sums as from the differences of frequencies with the other fundamentals. In contrast to the ligand exchange reaction the reduction of Tc04- with conc. HI yields products always contaminated with polyiodides. The extremely strong Raman scatterer (TBA)l3 is detected by a characteristic doublet at 111 and 116 cm-1 and even small amounts of it cover the Raman spectrum of (TBA)[TcOI4].

scholarly journals HTC of Wet Residues of the Brewing Process: Comprehensive Characterization of Produced Beer, Spent Grain and Valorized Residues

Energies ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 2058 ◽  
Author(s):  
Mateusz Jackowski ◽  
Lukasz Niedzwiecki ◽  
Magdalena Lech ◽  
Mateusz Wnukowski ◽  
Amit Arora ◽  
...  
Keyword(s):  
Main Product ◽  
Hydrothermal Carbonization ◽  
Fuel Properties ◽  
Mass Yield ◽  
Tracer Method ◽  
Brewing Process ◽  
Spent Grain ◽  
Potential Use ◽  
Comprehensive Characterization

Steady consumption of beer results in a steady output of residues, i.e., brewer’s spent grain (BSG). Its valorization, using hydrothermal carbonization (HTC) seems sensible. However, a significant knowledge gap regarding the variability of this residue and its influence on the valorization process and its potential use in biorefineries exists. This study attempted to fill this gap by characterization of BSG in conjunction with the main product (beer), taking into accounts details of the brewing process. Moreover, different methods to assess the performance of HTC were investigated. Overall, the differences in terms of the fuel properties of both types of spent grain were much less stark, in comparison to the differences between the respective beers. The use of HTC as a pretreatment of BSG for subsequent use as a biorefinery feedstock can be considered beneficial. HTC was helpful in uniformization and improvement of the fuel properties. A significant decrease in the oxygen content and O/C ratio and improved grindability was achieved. The Weber method proved to be feasible for HTC productivity assessment for commercial installations, giving satisfactory results for most of the cases, contrary to traditional ash tracer method, which resulted in significant overestimations of the mass yield.

scholarly journals Pontiella desulfatans gen. nov., sp. nov., and Pontiella sulfatireligans sp. nov., Two Marine Anaerobes of the Pontiellaceae fam. nov. Producing Sulfated Glycosaminoglycan-like Exopolymers

2020 ◽  
Vol 8 (6) ◽  
pp. 920 ◽  
Author(s):  
Daan M. van Vliet ◽  
Yuemei Lin ◽  
Nicole J. Bale ◽  
Michel Koenen ◽  
Laura Villanueva ◽  
...  
Keyword(s):  
Glycoside Hydrolase ◽  
Elemental Sulfur ◽  
Anaerobic Growth ◽  
Sulfated Polysaccharides ◽  
Biosynthesis Gene Cluster ◽  
Sulfated Glycosaminoglycan ◽  
Biosynthesis Gene ◽  
Pure Cultures ◽  
Simple Carbohydrates

Recently, we isolated two marine strains, F1T and F21T, which together with Kiritimatiella glycovorans L21-Fru-ABT are the only pure cultures of the class Kiritimatiellae within the phylum Verrucomicrobiota. Here, we present an in-depth genome-guided characterization of both isolates with emphasis on their exopolysaccharide synthesis. The strains only grew fermentatively on simple carbohydrates and sulfated polysaccharides. Strains F1T, F21T and K. glycovorans reduced elemental sulfur, ferric citrate and anthraquinone-2,6-disulfonate during anaerobic growth on sugars. Both strains produced exopolysaccharides during stationary phase, probably with intracellularly stored glycogen as energy and carbon source. Exopolysaccharides included N-sulfated polysaccharides probably containing hexosamines and thus resembling glycosaminoglycans. This implies that the isolates can both degrade and produce sulfated polysaccharides. Both strains encoded an unprecedently high number of glycoside hydrolase genes (422 and 388, respectively), including prevalent alpha-L-fucosidase genes, which may be necessary for degrading complex sulfated polysaccharides such as fucoidan. Strain F21T encoded three putative glycosaminoglycan sulfotransferases and a putative sulfate glycosaminoglycan biosynthesis gene cluster. Based on phylogenetic and chemotaxonomic analyses, we propose the taxa Pontiella desulfatans F1T gen. nov., sp. nov. and Pontiella sulfatireligans F21T sp. nov. as representatives of the Pontiellaceae fam. nov. within the class Kiritimatiellae.

Enabling Oxygen–Sulfur Exchange Reaction to Produce Semicrystalline Copolymers from Carbon Disulfide and Ethylene Oxide

2020 ◽  
pp. 2000472
Author(s):  
Jia‐Liang Yang ◽  
Ying Wang ◽  
Xiao‐Han Cao ◽  
Cheng‐Jian Zhang ◽  
Zheng Chen ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Exchange Reaction ◽  
Carbon Disulfide ◽  
Sulfur Exchange

scholarly journals Quantification of cysteine hydropersulfide with a ratiometric near-infrared fluorescent probe based on selenium–sulfur exchange reaction

2016 ◽  
Vol 7 (8) ◽  
pp. 5098-5107 ◽  
Author(s):  
Xiaoyue Han ◽  
Fabiao Yu ◽  
Xinyu Song ◽  
Lingxin Chen
Keyword(s):  
Exchange Reaction ◽  
Fluorescent Probe ◽  
Near Infrared ◽  
Living Cells ◽  
Hepatic Carcinoma ◽  
Sulfur Exchange

A ratiometric near-infrared fluorescent probe based on a selenium–sulfur exchange reaction to quantify cysteine hydropersulfide in living cells and hepatic carcinoma rats.

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