STP573: Rapid Determination of Fluoride in Hydrochloric Acid, Pickle Liquor, and Gaseous Emissions

    Bhargava, OP
    Supervisor, Analytical Chemistry, senior utilities engineer, and general supervising metallurgist, The Steel Company of Canada, Ltd., Metallurgical & Chemical Labs., Hamilton, Ontario

    Schuldt, AA
    Supervisor, Analytical Chemistry, senior utilities engineer, and general supervising metallurgist, The Steel Company of Canada, Ltd., Metallurgical & Chemical Labs., Hamilton, Ontario

    Hines, WG
    Supervisor, Analytical Chemistry, senior utilities engineer, and general supervising metallurgist, The Steel Company of Canada, Ltd., Metallurgical & Chemical Labs., Hamilton, Ontario

    Pages: 8    Published: Jan 1975


    Abstract

    Rapid methods for the determination of fluoride in hydrochloric acid, pickle liquor for hydrochloric acid regeneration systems, and gaseous emissions from steelmaking slags, using a fluoride ion-selective electrode, are presented. A single determination down to 1 ppm including standardization can be completed in hydrochloric acid in about 5 min permitting easy monitoring of incoming shipments. Fluoride contents in the gaseous emissions down to 0.01 ppm are readily determined after absorption in sodium hydroxide solution.

    Keywords:

    water quality, fluorides, hydrochloric acid, chemical cleaning, environmental tests, slagging


    Paper ID: STP39005S

    Committee/Subcommittee: D19.95

    DOI: 10.1520/STP39005S


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