Last edited by Sanris
Tuesday, July 7, 2020 | History

2 edition of Oxidation of polycyclic, aromatic hydrocarbons found in the catalog.

Oxidation of polycyclic, aromatic hydrocarbons

R. Stuart Tipson

Oxidation of polycyclic, aromatic hydrocarbons

a review of the literature

by R. Stuart Tipson

  • 373 Want to read
  • 5 Currently reading

Published by Institute of Materials Research, National Bureau of Standards; for sale by the Superintendent of Documents, U.S. Govt. Print. Off. in Washington .
Written in English

    Subjects:
  • Hydrocarbons.,
  • Oxidation.

  • Edition Notes

    Statement[by] R. Stuart Tipson.
    SeriesNational Bureau of Standards monograph 87, NBS monograph ;, 87.
    Classifications
    LC ClassificationsQC100 .U556 no. 87
    The Physical Object
    Paginationiv, 52 p.
    Number of Pages52
    ID Numbers
    Open LibraryOL5964531M
    LC Control Number65060062
    OCLC/WorldCa697933

    @article{osti_, title = {Natural mediators in the oxidation of polycyclic aromatic hydrocarbons by laccase mediator systems}, author = {Johannes, C and Majcherczyk, A}, abstractNote = {The oxidation of polycyclic aromatic compounds was studied in systems consisting of laccase from Trametes versicolor and so-called mediator compounds. Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental pollutants generated primarily during the incomplete combustion of organic materials (e.g., coal, oil, petrol, and wood). Many PAHs have toxic, mutagenic, and/or carcinogenic functions. PAHs are highly lipid soluble which lead to a fast absorption by the gastrointestinal tract of marine mammals.

    @article{osti_, title = {Metabolism of polycyclic aromatic hydrocarbons in the aquatic environment}, author = {Varanasi, U}, abstractNote = {The impetus for these studies has come from diverse developments, including increased transport of petroleum across major waterways of the world and consequent concern about accidental spills, reports of epizootics of diseases in fish populations.   Polycyclic aromatic hydrocarbons (PAHs) encompass a huge and diverse group of priority environmental pollutants, which are ubiquitous contaminants derived from both natural and anthropogenic processes. Their abundance in the environment is of immense concern because many of them are toxic, mutagenic and/or carcinogenic. Among them, acenaphthene has often been used as a .

      A computationally efficient method to treat secondary organic aerosol (SOA) from various length and structure alkanes as well as SOA from polycyclic aromatic hydrocarbons (PAHs) is implemented in the Community Multiscale Air Quality (CMAQ) model to predict aerosol concentrations over the United States. Oxidation of alkanes is predicted to produce more aerosol than oxidation of . Polycyclic aromatic hydrocarbons (PAHs), also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are seen in. PAHs are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH.


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Oxidation of polycyclic, aromatic hydrocarbons by R. Stuart Tipson Download PDF EPUB FB2

Certain polycyclic, aromatic hydrocarbons can be oxidized with periodic acid in aprotic solvents containing a small proportion of water. A unique, two-fold character of response to periodic acid by these hydrocarbons has been found: (1) production of a coupling reaction through a radical intermediate [conversion of pyrene into 1,1′-bipyrene, and fluorene into 1,2-bis(2,2′-biphenylylene Cited by: 2.

Two main pathways are involved in the carcinogenic activation of polycyclic aromatic hydrocarbons (PAH): one-electron oxidation and monooxygenation.

One-electron oxidation produces PAH radical cations, which can react with cellular nucleophiles. Polycyclic aromatic hydrocarbons Basically, three pathways have been reported for the photo-oxidation of PAHs, namely through radical cation (PAH(H)• +) and two pathways with the participation of oxygen either via singlet (1 O 2) or hydroxyl radical (HO •) formed in various reactions with superoxide anion (O 2 −) (Miller.

Polycyclic aromatic hydrocarbons (PAHs) are toxic and carcinogenic compounds that are ubiquitous in the environment are prevalent in cigarette smoke, automobile exhaust, and in charcoal-cooked meats.

PAH exposure induces the expression of two cytochrome Ps: CYP1A1 and CYP1B1, which initiate PAH aromatic hydrocarbons book by oxidizing it (26). The Mechanisms of Atmospheric Oxidation of the Aromatic Hydrocarbons Jack G. Calvert, Roger Atkinson, Karl H.

Becker, Richard M. Kamens, John H. Seinfeld, Timonthy H. Laccase of Trametes versicolor was able to oxidize in vitro most of the 14 polycyclic aromatic hydrocarbons (PAH) tested. Acenaphthylene was removed by 37% followed by anthracene and benzo[a]pyrene which were oxidized by 18 and 19%, respectively.

Polycyclic aromatic hydrocarbons (PAHs) are hydrophobic pollutants and their low water solubility limits their degradation in aqueous solution. The presence of water-miscible solvent such as acetone can increase the water solubility of PAHs, however acetone will also affect the degradation of PAH.

In this study the effects of acetone on the photocatalytic degradation efficiency and pathways of. The oxidation of polycyclic aromatic compounds was studied in systems consisting of laccase from Trametes versicolor and so-called mediator compounds.

The enzymatic oxidation of acenaphthene, acenaphthylene, anthracene, and fluorene was mediated by various laccase substrates (phenols and aromatic amines) or compounds produced and secreted by white rot fungi.

The Mechanisms of Atmospheric Oxidation of the Aromatic Hydrocarbons by Jack G. Calvert,available at Book Depository with free delivery worldwide.

Polycyclic aromatic hydrocarbons (PAHs) are among the most widespread and potentially toxic contaminants in Great Lakes (USA/Canada) tributaries. The sources of PAHs are numerous and diverse, and identifying the primary source(s) can be difficult. The present study used multiple lines of evidence to determine the likely sources of PAHs to.

The reactivity of permanganate towards polycyclic aromatics hydrocarbons (PAHs) is well known but little kinetic information is available. This study investigated the oxidation kinetics of a selected group of coal tar creosote compounds and alkylbenzenes in water using permanganate, and the correlation between compound reactivity and physical/chemical properties.

Polycyclic aromatic hydrocarbons are major contaminants in environmental bodies due to ubiquitous occurrence, toxicity and potential to bioaccumulation.

Increased population, rapid industrialization and extensive use of oil fuels are one of the major cause of pollution by polycyclic aromatic hydrocarbons.

Polycyclic aromatic hydrocarbons (PAHs, also polyaromatic hydrocarbons or polynuclear aromatic hydrocarbons) are hydrocarbons—organic compounds containing only carbon and hydrogen—that are composed of multiple aromatic rings (organic rings in which the electrons are delocalized).The simplest such chemicals are naphthalene, having two aromatic rings, and the three-ring compounds.

Substitution Reactions of Polynuclear Aromatic Hydrocarbons Last updated; Save as PDF Page ID ; A Naphthalene; B Phenanthrene; C Anthracene; Contributors; Although naphthalene, phenanthrene, and anthracene resemble benzene in many respects, they are more reactive than benzene in both substitution and addition reactions.

An aromatic hydrocarbon or arene (or sometimes aryl hydrocarbon) is a hydrocarbon with sigma bonds and delocalized pi electrons between carbon atoms forming a circle.

In contrast, aliphatic hydrocarbons lack this delocalization. The term "aromatic" was assigned before the physical mechanism determining aromaticity was discovered, and referred simply to the fact that many such compounds have a.

Polycyclic Aromatic Hydrocarbons by Cyclodehydrogenation and Skeletal Rearrangement of Oligophenylenes † Dipl.‐Chem. Markus Müller Max‐Planck‐Institut für Polymerforschung Ackermann D‐ Mainz (Germany) Fax: Int.

code +()‐ e‐mail: [email protected]‐ Browse the list of issues and latest articles from Polycyclic Aromatic Compounds. List of issues Latest articles Partial Access; Volume 40 Volume 39 Volume 38 Volume 37 Volume 36 Volume 35 Volume 34 Volume 33. Get this from a library. Oxidation of polycyclic, aromatic hydrocarbons; a review of the literature.

[R Stuart Tipson]. Abstract. Polycyclic aromatic hydrocarbons (PAHs) are active members of the group of multi-aromatic organic compounds, considered to be the most ubiquitous environmental pollutants, mainly engendered from partial combustion of wood, coal, oil or other organic materials.

From inside the book. What people are saying - Write a review. We haven't found any reviews in the usual places. Contents. Introduction page. 1: The Orientation of Biochemically introduced Hydroxyl Groups.

The Oxidation of Polycyclic Hydrocarbons in the Animal Body. Biological oxidation of aromatic rings: A symposium held at. Periodic acid, a novel oxidant of polycyclic aromatic hydrocarbons. Alexander J. Fatiadi Abstract. The first page of this article is displayed as the abstract. Authors contributing to RSC publications (journal articles, books or book chapters) do not need to formally request permission to reproduce material contained in this article.Adaptations for the Oxidation of Polycyclic Aromatic Hydrocarbons Exhibited by the Structure of Human P 1A2 * 2 and 3 enzymes and demonstrates how P family 1 enzymes have evolved to catalyze efficiently polycyclic aromatic hydrocarbon oxidation.

This report provides the first structure of a microsomal P from family 1 and offers a.Alexandra John, Michael Bolte, Hans‐Wolfram Lerner, Matthias Wagner, A Vicinal Electrophilic Diborylation Reaction Furnishes Doubly Boron‐Doped Polycyclic Aromatic Hydrocarbons, Angewandte Chemie International Edition, /anie, 56, 20, (), ().