Results 11 to 20 of about 56,275 (312)

Halogenated polyethersulfone sulfides [PDF]

open access: yes, 2023
This paper presents the results of a study of random copolyethersulfone sulfides based on 4,4-dichlorodiphenylsulfone, 1,1-dichloro-2,2-di(4-hydroxyphenyl)ethylene, and sodium sulfide. The synthesis of copolyethersulfone sulfides with different ratios of
Kharaev A. M.   +2 more
core   +3 more sources

One-Pot, Three-Component Synthesis of Sulfides Using a Sulfoxide Reagent as a Sulfur Dication Equivalent [PDF]

open access: yes, 2023
Sulfides are prevalent in bioactive molecules and have also found numerous applications in synthesis. Various reagents have been developed for the three-component synthesis of sulfides, but the strategic use of sulfur dication equivalents for this ...
Fumito, Saito, Simon, Euteneuer
core   +1 more source

MINERAL INCLUSIONS IN THE LATE BRONZE AGE METAL OBJECTS OF SOUTHERN TRANSURALS [PDF]

open access: yesМинералогия, 2021
The paper is devoted to the determination of copper raw material types based on the analysis of mineral inclusions and the composition of metal objects from the Late Bronze Age settlements of the Southern Transurals (XIX–XIII centuries BC).
M.N. Ankushev   +5 more
doaj   +1 more source

Concept and Design of Martian Far-IR ORE Spectrometer (MIRORES)

open access: yesRemote Sensing, 2022
Sulfide ores are a major source of noble (Au, Ag, and Pt) and base (Cu, Pb, Zn, Sn, Co, Ni, etc.) metals and will, therefore, be vital for the self-sustainment of future Mars colonies. Martian meteorites are rich in sulfides, which is reflected in recent
Jakub Ciazela   +19 more
doaj   +1 more source

Chemical reactions and conditions of mineral formation at tailings storage facilities of the Russian Far East

open access: yesГорные науки и технологии, 2021
Cassiterite-sulfide and polymetallic deposits of the Far Eastern Region (FER) were mined by both openpit and underground methods. This resulted in the emerging numerous mine workings and tailings storage facilities (TSFs) (abandoned without reclamation ...
V. P. Zvereva   +2 more
doaj   +1 more source

Continuous Bioinspired Oxidation of Sulfides [PDF]

open access: yes, 2020
A simple, efficient, and selective oxidation under flow conditions of sulfides into their corresponding sulfoxides and sulfones is reported herein, using as a catalyst perselenic acid generated in situ by the oxidation of selenium (IV) oxide in a diluted
Luca Sancineto   +4 more
core   +1 more source

Lewis acid-promoted hydrofluorination of alkynyl sulfides to generate α-fluorovinyl thioethers [PDF]

open access: yes, 2015
The authors thank EPSRC for supporting this work and DO’H is grateful for a Royal Society Wolfson Research Merit Award.A new method for the preparation of alpha-fluorovinyl thioethers is reported which involves the hydrofluorination of alkynyl sulfides ...
Bello, Davide   +3 more
core   +1 more source

Characterization of Polysulfides, Polysulfanes, and Other Unique Species in the Reaction between GSNO and H2S

open access: yesMolecules, 2019
Glutathione-based products, GSnX, of the reaction of hydrogen sulfide, H2S, S-nitroso glutathione, and GSNO, at varied stoichiometries have been analyzed by liquid chromatography high-resolution mass spectrometry (LC-HRMS) and chemical trapping ...
Murugaeson R Kumar, Patrick J Farmer
doaj   +1 more source

The Electrical Properties of Calcium Sulfide Doped with Lanthanum Sulfide and Zirconium Sulfide [PDF]

open access: yesBulletin of the Chemical Society of Japan, 1985
Abstract Calcium sulfides doped with tri- and tetravalent metal sulfides were prepared. Their electromotive forces (EMF) were measured on a galvanic cell(Fe+FeS| Solid Electrolyte| Cu+Cu2S) where the solid electrolyte was a material in a CaS–Ln2S3–MS2 system.
Gin-ya Adachi   +3 more
openaire   +1 more source

Volcanic sulfides and outgassing [PDF]

open access: yes, 2017
Sulfides are a major potential repository for magmatic metals and sulfur. In more reduced magmas, there may be a dynamic interplay between sulfide liquids and degassing as magmas ascend/erupt.
Mather, Tamsin   +5 more
core   +5 more sources

Home - About - Disclaimer - Privacy