STP1430

    Physical Properties of Alkylene Carbonate Solvents and Their Use in Agricultural Formulations

    Published: Jan 2003


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    Abstract

    Alkylene carbonates are a solvent chemistry that has been used in application areas outside of agriculture for over fifty years. They are environmentally friendly, biodegradable, have low Volatile Organic Content (VOC), and are powerful solvents. Blending products with different molecular weights is a technique that can be used to control the polarity of the overall solvent system.

    Alkylene carbonates are currently being evaluated as solvents and co-solvents in gricultural formulations. They can add to the effectiveness of pesticide formulations and adjuvants due to their high solvency and low VOC. These are just some of the characteristics of alkylene carbonates that can combine to produce better penetration and sticking of the active ingredient. Higher molecular weight carbonates can be incorporated into formulations to improve rain-fastness and solubility of all formulation components.

    In this work we provide background information on alkylene carbonates and present heir physical chemistry. We then present phytotoxicity characteristics and the results of an adjuvancy study with glyphosate. We then provide example formulations that contain alkylene carbonates as part of the solvent system. These formulations include both emulsifiable concentrates (EC) and a microemulsifiable concentrate (MEC).

    Keywords:

    alkylene carbonate, phytotoxicity, adjuvant, solvent, emulsifiable concentrate, microemulsifiable concentrate, surfactant, emulsifier


    Author Information:

    Elsik, CM
    Research Engineer, Project Chemist, and Chemist, The Austin Laboratories, Huntsman Corporation, Austin, TX

    Stridde, HM
    Research Engineer, Project Chemist, and Chemist, The Austin Laboratories, Huntsman Corporation, Austin, TX

    Machac, JR
    Research Engineer, Project Chemist, and Chemist, The Austin Laboratories, Huntsman Corporation, Austin, TX


    Paper ID: STP11112S

    Committee/Subcommittee: E35.22

    DOI: 10.1520/STP11112S


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