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Aqueous ferrioxalate compositions useful as calibrants

  • US 5,070,023 A
  • Filed: 02/03/1989
  • Issued: 12/03/1991
  • Est. Priority Date: 10/14/1988
  • Status: Expired due to Fees
First Claim
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1. An aqueous solution having a pH of 0 to 5 and comprising 0.3 to 15 millimoles per liter oxalate and 1.5 to 200 millimoles per liter of iron (III);

  • the molar ratio of iron (III) to oxalate being 5;

    1 to 100;

    1.

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