OXIDATION OF IRON(II) SULFATE WITH SULFUR DIOXIDE AND OXYGEN MIXTURES.

Tsugio Sato, Takashi Goto, Taijiro Okabe, Frank Lawson

    Research output: Contribution to journalArticlepeer-review

    29 Citations (Scopus)

    Abstract

    The oxidation of iron(II) sulfate with SO//2/O//2 (sulfur dioxide and oxygen mixtures) was carried out using an air-lift percolator in the temperature range of 25-50 degree C and over the pH range of 0-3. Under conditions in which sulfur dioxide is immediately oxidized, the rate of the oxidation of iron(II) is proportional to the flow rate of sulfur dioxide and independent of the flow rate and partial pressure of oxygen, and the concentration of iron(II). The molar ratio of Fe**2** plus oxidized/SO//2 oxidized is 1. 3-2 in the pH range of 0. 5-2. 0. A free-radical chain reaction in which HSO//5** minus oxidizes iron(II) is proposed as the reaction mechanism.

    Original languageEnglish
    Pages (from-to)2082-2086
    Number of pages5
    JournalBulletin of the Chemical Society of Japan
    Volume57
    Issue number8
    DOIs
    Publication statusPublished - 1984 Jan 1

    ASJC Scopus subject areas

    • Chemistry(all)

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