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Related Concept Videos

Preparation and Reactions of Sulfides02:26

Preparation and Reactions of Sulfides

Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.

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Related Experiment Video

Updated: Jun 9, 2026

A Filter-based Surface Enhanced Raman Spectroscopic Assay for Rapid Detection of Chemical Contaminants
08:13

A Filter-based Surface Enhanced Raman Spectroscopic Assay for Rapid Detection of Chemical Contaminants

Published on: February 19, 2016

Application of Raman spectroscopy to metal-sulfide surface analysis.

S B Turcotte, R E Benner, A M Riley

    Applied Optics
    |August 31, 2010
    PubMed
    Summary
    This summary is machine-generated.

    This study used Raman spectroscopy to analyze electrochemically oxidized pyrite surfaces, determining key parameters for sulfur formation. The findings offer insights into surface chemistry and electrochemical reactions of iron sulfide minerals.

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    Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy

    Published on: May 12, 2023

    Area of Science:

    • Electrochemistry
    • Materials Science
    • Geochemistry

    Background:

    • Pyrite (FeS(2)) is a common sulfide mineral.
    • Understanding its electrochemical oxidation is crucial for various applications, including mining and environmental remediation.
    • Surface product analysis is key to elucidating reaction mechanisms.

    Purpose of the Study:

    • To investigate the surface products of electrochemically oxidized pyrite.
    • To determine the parameters influencing sulfur formation on the pyrite surface.
    • To demonstrate the utility of Raman spectroscopy for in-situ surface characterization.

    Main Methods:

    • Electrochemical oxidation of pyrite at varying applied potentials.
    • Raman spectroscopy utilizing an argon laser, triple spectrograph, and charge-coupled-device detector.
    • In-situ surface analysis with high resolution and sensitivity.

    Main Results:

    • Identification of surface products as a function of applied potential.
    • Determination of critical parameters required for sulfur formation.
    • Demonstration of Raman spectroscopy's capability in identifying surface compounds.

    Conclusions:

    • Electrochemical oxidation of pyrite leads to distinct surface products, including sulfur.
    • Raman spectroscopy is a powerful tool for in-situ surface characterization of minerals.
    • The study provides fundamental data for understanding pyrite's surface chemistry under electrochemical conditions.