Chemical and Biomolecular Engineering

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  • Inventor(s):
    Albert E. Miller, Gautam Banerjee
    Patent Number:
    US 6183547 B2
    Description:

    A composition for inhibiting corrosion of metal surfaces comprises permanganate and a very low concentration of chromium (VI). The concentration of chromium (VI) in the aqueous solution is less than about 100 micrograms per liter, and the concentration of permanganate is about 0.2% to about 20% by weight of the aqueous solution. In another embodiment of the invention, a composition for inhibiting corrosion of metal surfaces includes permanganate and acetic acid. The concentration of acetic ac…

    Date Issued:
    2001-02-06
    Record Visibility:
    Public
    Resource Type
    Patent