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  • Fiber optics  (1)
  • Sonochemistry  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 259-261 
    ISSN: 0044-2313
    Keywords: Sonochemistry ; Carbonsubsulfide ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Sonochemistry: C3S2 Originated by Ultrasounding CarbondisulfidePure carbondisulfide was treated with ultrasound of a frequency of 20 kHz. Consequently small amounts of C3S2, S6, S7, and S8 were obtained, which could be separated gas-chromatographically and detected by mass spectroscopy. The yields were approximately proportional to the period of influence.
    Notes: Die Beschallung von Schwefelkohlenstoff mit Ultraschall (20 kHz) führt zu stationären, kleinen Konzentrationen an C3S2, S6, S7 und S8, die gaschromatographisch getrennt und massenspektrometrisch identifiziert werden. Die Ausbeuten der Produkte sind in erster Näherung proportional zur Beschallungsdauer.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0570-0833
    Keywords: Optical data transmission ; Waveguides ; Fiber optics ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: One of the modern high technologies which has advanced enormously in the last few years is glass fiber technology. This is used in the manufacture of glass fibers for lighting purposes and for the optical transfer of analog and digital data with a high transfer density. The technical demands made on the glass fibers required for data transfer, the optical waveguides, are extremely high and are already fulfilled to a large extent by industry. At present about four million kilometers of fiber, worth ca. 800 million DM are produced worldwide (10% in the Federal Republic of Germany). Numerous chemical processes take place during the manufacture of optical waveguides. However, in contrast both to the high and constantly growing demands on the quality and to the increasing production volume of such fibers, little is in fact known about the reactions involved. The present article will attempt to develop a picture of the multifarious reactions occurring in the course of this technical process on the basis of literature data and our own studies.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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