Oxidation of aromatic and aliphatic hydrocarbons by OH radicals photochemically generated from H2O2 in ice

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F06%3A00016117" target="_blank" >RIV/00216224:14310/06:00016117 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/06:00018654

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Oxidation of aromatic and aliphatic hydrocarbons by OH radicals photochemically generated from H2O2 in ice

Original language description

Oxidation of aromatic and saturated aliphatic hydrocarbons (c = 10-3-10-5 mol L-1) by the hydroxyl radicals, photochemically produced from hydrogen peroxide (c = 10-1-10-5 mol L-1), in frozen aqueous solutions was investigated in the temperature range of-20 to -196 C. While aromatic molecules (benzene, phenol, naphthalene, naphthalen-2-ol, or anthracene) underwent primarily addition-elimination reactions to form the corresponding hydroxy compounds, saturated hydrocarbons (cyclohexane, butane, methane)were oxidized to alcohols or carbonyl compounds via hydrogen abstraction and termination reactions. The results suggest that these photoreactions, taking place in a highly concentrated liquid or solidified layers covering the ice crystals, are qualitatively similar to those known to occur in liquid aqueous solutions; however, that probability of any bimolecular reaction in the environment ultimately depends on organic contaminant concentrations and oxidants availability at specific locat

Czech name

Oxidace aromatických a alifatických uhlovodíků OH radikály fotochemicky generovanými v ledu

Czech description

Oxidation of aromatic and saturated aliphatic hydrocarbons (c = 10-3-10-5 mol L-1) by the hydroxyl radicals, photochemically produced from hydrogen peroxide (c = 10-1-10-5 mol L-1), in frozen aqueous solutions was investigated in the temperature range of-20 to -196 C. While aromatic molecules (benzene, phenol, naphthalene, naphthalen-2-ol, or anthracene) underwent primarily addition-elimination reactions to form the corresponding hydroxy compounds, saturated hydrocarbons (cyclohexane, butane, methane)were oxidized to alcohols or carbonyl compounds via hydrogen abstraction and termination reactions. The results suggest that these photoreactions, taking place in a highly concentrated liquid or solidified layers covering the ice crystals, are qualitatively similar to those known to occur in liquid aqueous solutions; however, that probability of any bimolecular reaction in the environment ultimately depends on organic contaminant concentrations and oxidants availability at specific locat

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CC - Organic chemistry

OECD FORD branch

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Project

<a href="/en/project/GA205%2F05%2F0819" target="_blank" >GA205/05/0819: Environmental consequences of photochemical processes in ice and snow</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Environmental Science & Technology

ISSN

0013-936X

e-ISSN

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Volume of the periodical

40

Issue of the periodical within the volume

24

Country of publishing house

US - UNITED STATES

Number of pages

7

Pages from-to

7668-7674

UT code for WoS article

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EID of the result in the Scopus database

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