Compositions and methods comprising nitrification inhibitors containing a mixture of protic and aprotic solvent systems

  • US 9,650,306 B2
  • Filed: 04/17/2015
  • Issued: 05/16/2017
  • Est. Priority Date: 04/17/2014
  • Status: Active Grant
First Claim
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1. A composition comprising one or more nitrification inhibitors in an organic liquid solvating system comprising a mixture of aprotic solvents and protic solventswherein a first aprotic solvent is dimethyl sulfoxide, dialkyl sulfoxide, diaryl sulfoxide, or an alkylaryl sulfoxide having the formula

  • S(O)—

    R2,wherein R1 is methyl, ethyl, n-propyl, phenyl or benzyl and R2 is ethyl, n-propyl, phenyl or benzyl,and a protic solvent is one or more members selected from the group consisting ofa) an alcohol or polyol from the family of alkylene and poly(alkylene) glycolsb) an alkylene glycol selected from the group consisting of ethylene, propylene, and butylene glycol,c) glycerin,d) an alkylene glycol alkyl ether selected from the group comprising of dipropylene glycol methyl ether, tripropylene glycol methyl ether, and tripropylene glycol butyl etherande) ethyl, propyl, or butyl lactatewherein the organic liquid solvating system meets the following criteria;

    a. environmentally safeb. has a flashpoint above 145°

    F.c. inherently rated safe for contact with humans and animalsd. able to provide improved and even application to fertilizer granules of nitrification inhibitors while not causing clumping of the granulese. results in a composition comprising at least one of nitrification inhibitor at levels of 1-50% with a Chill Point <



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