Urea phosphite

  • US 8,101,548 B2
  • Filed: 09/17/2005
  • Issued: 01/24/2012
  • Est. Priority Date: 09/17/2004
  • Status: Active Grant
First Claim
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1. A liquid composition of matter consisting of urea phosphite prepared by:

  • mixing a solid urea with a solid phosphorous acid at a temperature in the range of about 15°

    C. to about 100°

    C., wherein the urea and phosphorous acid are in a molar ratio of urea to phosphorous acid ranging from about 2;

    1 to about 1;

    2, andwithout adding water, allowing a clear, colorless liquid indicating urea phosphite to form from said mixture of solids.

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