Ultrasound was applied to low molecular weight organic compounds in dilute aqueous solutions. The transformation of these dilute methanol, acetone, formaldehyde and acetaldehyde solutions under static sonolysis at ambient condition was found to form acetate and formate products, which were measured by ion chromatography. These chromatograms were deduced from the ion chromatograms of known standards prior to and after the sonolysis of the sample runs.Under static sonolysis, the dilute methanol solutions yielded more acetate than formate and the formaldehyde solutions also produced a substantial amount of acetate besides the formate product. The redox transformation mechanism of the one carbon compounds as CH3OH and HCHO solutions to form the two carbon containing acetate product was presented.

This study describes development of 1,1,1‐trichloroethane removal from aqueous solutions. The decomposition of aqueous 1,1,1‐trichloroethane is more extensive with combined photolysis and sonolysis process than each separately. The extent of decomposition is measured by gas Chromatograph for removal of CCl3 CH3, by a turbidometric procedure for production of chloride ions, and Fourier transform infrared spectros‐copy for solid product. The concept is to degrade CCl3 CH3 in water flow systems to chloride ions, which are removable by ion‐exchange column.

Chemischer InformationsdienstVolume 16, Issue 4 Preparative Organic Chemistry ChemInform Abstract: HIGH PRESSURE ISOMERIZATION OF 1,4-BIS(METHYLTHIO)HEXAFLUORO-2-BUTENE TO -1-BUTENE M. S. TOY, M. S. TOYSearch for more papers by this authorR. S. STRINGHAM, R. S. STRINGHAMSearch for more papers by this author M. S. TOY, M. S. TOYSearch for more papers by this authorR. S. STRINGHAM, R. S. STRINGHAMSearch for more papers by this author First published: January 29, 1985 https://doi.org/10.1002/chin.198504146AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume16, Issue4January 29, 1985 RelatedInformation

Die Photolyse eines Gemisches von Hexafluorbutadien (I) und Methyldisulfid (II) liefert bei gleichzeitiger Einwirkung von Ultraschall als Hauptprodukt das trans‐Butenaddukt (III).

A high-temperature optical microautoclave for maintaining aqueous solution at elevated temperatures and pressures is described. The apparatus is being used to monitor the chemical processes taking place during temperature cyclings. Some spectra of copper(II) and iron(II) solutions are presented as examples up to 200°C and 15.3 atm estimated pressure.

The thermal and photolytic reactions of hexafluorobicyclo[2.2.0]hexa-2,5-diene and bis(fluoroxy)difluoromethane yielded four-membered fused-ring-containing perfluoroethers and copolymers. The reaction products were analyzed by gas chromatography, gas chromatography-infrared, gas chromatography-mass spectra, field ionization mass spectra and 19FNMR. The elucidation of the polymer microstructures was assisted by the 19FNMR spectroscopy of the related compounds, hexafluorobicyclo[2.2.0]-hexanes and -hexene in the volatile fraction.

AbstractDie thermische und photochemische Reaktion von Hexafluor‐Dewar‐benzol (I ) und Bis‐(fluoroxy)‐difluormethan (II) führt zu den cyclischen perfluorierten Ethern (III) bis (VI) und deren Copolymeren.

Die vicinalen Perfluor‐di‐tert.‐butoxycycloalkane (III) entstehen bei der photolytischen Reaktion der Perfluorcycloolefine (I) mit dem Peroxid (II).

AbstractDas Hypofluorit (I) und Tetrafluorhydrazin (II) bilden in Abwesenheit eines Lösungsmittels das Addukt (III).

Vicinal perfluorodi-t-butoxycycloalkanes and isomers have been prepared in 50 to 70% yields through photochemical reactions of (CF3)3COOC(CF3)3 with perfluorocycloolefins (c-C5F8 and c-C6F10) under a 200-watt Hg lamp at −20°C. The two isomers of vic-C5F8[OC(CF3)3]2 in 1:4 ratio have been fractionated and identified as cis- and trans-isomers respectively. The three isomers for vic-C6F10[OC(CF3)3]2 in 1:4:2 ratio have been fractionated and tentatively identified as equatorial-equatorial, axialequatorial and axial-axial respectively.

Tetrafluorohydrazine was added to neat perfluoro-t-butyl hypofluorite, where N2F4 functions as a fluoroxy fluoronium ion acceptor, to form a white crystalline adduct (m.p. ∼ 150°C) in 50% yield. The product, which is soluble in hydrogen fluoride and characterized by IR, 19F NMR and mass spectra, is suggested as pentafluorohydrazinium perfluoro-t-butoxide. The analytical results of the salt are described and discussed.

AbstractDie Addition von Verbindungen mit Fluoroxy‐Gruppen an perfluoraromatische Kohlenwasserstoffe führt zu stabilen Produkten.

AbstractDurch Photolyse von Perfluor‐tert.‐butylhypofluorit (I) in Gegenwart der Perfluorcycloolefine (II) bzw. (IX) bei ‐20°C entstehen als Hauptprodukt das Peroxid (III), ferner die Addukte (IV) bzw. (X), die Spaltprodukte (V) und (VI), die Perfluorcycloalkane (VII) bzw. (XI), kleine Mengen der vicinalen Perfluor‐di‐tert.‐butoxycycloalkane (VIII) bzw. (XII) und geringe Mengen dimerer und oligomerer Verbindungen.

A composite of poly(perfluorobutadiene) and perfluoroammonium hexafluoroarsenate has been developed that can be used as an efficient source of fluorine atoms because the salt does not react with the polymer. This point has been demonstrated by showing that no more than trace amounts of NF 3 , which is formed in most reactions of perfluoroammonium salts, are formed by heating the composite to 120°C or by maintaining the composite at 80°C for four days. The small amount of NF 3 that is formed can be explained as resulting from reactions with trace impurities.

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRadiation-Induced Polymerization of PerfluorobutadieneM. S. Toy and J. C. DiBariCite this: Ind. Eng. Chem. Prod. Res. Dev. 1972, 11, 4, 404–406Publication Date (Print):December 1, 1972Publication History Published online1 May 2002Published inissue 1 December 1972https://pubs.acs.org/doi/10.1021/i360044a009https://doi.org/10.1021/i360044a009research-articleACS PublicationsRequest reuse permissionsArticle Views69Altmetric-Citations3LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access options Get e-Alerts